JavaScript - Air Quality Bricklet¶

Simple (Node.js)¶

Download (ExampleSimple.js)

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var Tinkerforge = require('tinkerforge');

var HOST = 'localhost';
var PORT = 4223;
var UID = 'XYZ'; // Change XYZ to the UID of your Air Quality Bricklet

var ipcon = new Tinkerforge.IPConnection(); // Create IP connection
var aq = new Tinkerforge.BrickletAirQuality(UID, ipcon); // Create device object

ipcon.connect(HOST, PORT,
    function (error) {
        console.log('Error: ' + error);
    }
); // Connect to brickd
// Don't use device before ipcon is connected

ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
    function (connectReason) {
        // Get current all values
        aq.getAllValues(
            function (iaqIndex, iaqIndexAccuracy, temperature, humidity, airPressure) {
                console.log('IAQ Index: ' + iaqIndex);

                if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_UNRELIABLE) {
                    console.log('IAQ Index Accuracy: Unreliable');
                }
                else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_LOW) {
                    console.log('IAQ Index Accuracy: Low');
                }
                else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_MEDIUM) {
                    console.log('IAQ Index Accuracy: Medium');
                }
                else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_HIGH) {
                    console.log('IAQ Index Accuracy: High');
                }

                console.log('Temperature: ' + temperature/100.0 + ' °C');
                console.log('Humidity: ' + humidity/100.0 + ' %RH');
                console.log('Air Pressure: ' + airPressure/100.0 + ' hPa');
            },
            function (error) {
                console.log('Error: ' + error);
            }
        );
    }
);

console.log('Press key to exit');
process.stdin.on('data',
    function (data) {
        ipcon.disconnect();
        process.exit(0);
    }
);

Callback (Node.js)¶

Download (ExampleCallback.js)

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var Tinkerforge = require('tinkerforge');

var HOST = 'localhost';
var PORT = 4223;
var UID = 'XYZ'; // Change XYZ to the UID of your Air Quality Bricklet

var ipcon = new Tinkerforge.IPConnection(); // Create IP connection
var aq = new Tinkerforge.BrickletAirQuality(UID, ipcon); // Create device object

ipcon.connect(HOST, PORT,
    function (error) {
        console.log('Error: ' + error);
    }
); // Connect to brickd
// Don't use device before ipcon is connected

ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
    function (connectReason) {
        // Set period for all values callback to 1s (1000ms)
        aq.setAllValuesCallbackConfiguration(1000, false);
    }
);

// Register all values callback
aq.on(Tinkerforge.BrickletAirQuality.CALLBACK_ALL_VALUES,
    // Callback function for all values callback
    function (iaqIndex, iaqIndexAccuracy, temperature, humidity, airPressure) {
        console.log('IAQ Index: ' + iaqIndex);

        if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_UNRELIABLE) {
            console.log('IAQ Index Accuracy: Unreliable');
        }
        else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_LOW) {
            console.log('IAQ Index Accuracy: Low');
        }
        else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_MEDIUM) {
            console.log('IAQ Index Accuracy: Medium');
        }
        else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_HIGH) {
            console.log('IAQ Index Accuracy: High');
        }

        console.log('Temperature: ' + temperature/100.0 + ' °C');
        console.log('Humidity: ' + humidity/100.0 + ' %RH');
        console.log('Air Pressure: ' + airPressure/100.0 + ' hPa');
        console.log();
    }
);

console.log('Press key to exit');
process.stdin.on('data',
    function (data) {
        ipcon.disconnect();
        process.exit(0);
    }
);

Simple (HTML)¶

Download (ExampleSimple.html), Test (ExampleSimple.html)

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<!DOCTYPE html>
<html>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <head>
        <title>Tinkerforge | JavaScript Example</title>
    </head>
    <body>
        <div style="text-align:center;">
            <h1>Air Quality Bricklet Simple Example</h1>
            <p>
                <input value="localhost" id="host" type="text" size="20">:
                <input value="4280" id="port" type="text" size="5">,
                <input value="uid" id="uid" type="text" size="5">
                <input value="Start Example" id="start" type="button" onclick="startExample();">
            </p>
            <p>
                <textarea readonly id="text" cols="80" rows="24" style="resize:none;"
                          >Press "Start Example" to begin ...</textarea>
            </p>
        </div>
        <script src="./Tinkerforge.js" type='text/javascript'></script>
        <script type='text/javascript'>
            var ipcon;
            var textArea = document.getElementById("text");
            function startExample() {
                textArea.value = "";
                var HOST = document.getElementById("host").value;
                var PORT = parseInt(document.getElementById("port").value);
                var UID = document.getElementById("uid").value;
                if(ipcon !== undefined) {
                    ipcon.disconnect();
                }
                ipcon = new Tinkerforge.IPConnection(); // Create IP connection
                var aq = new Tinkerforge.BrickletAirQuality(UID, ipcon); // Create device object
                ipcon.connect(HOST, PORT,
                    function(error) {
                        textArea.value += 'Error: ' + error + '\n';
                    }
                ); // Connect to brickd
                // Don't use device before ipcon is connected

                ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
                    function (connectReason) {
                        // Get current all values
                        aq.getAllValues(
                            function (iaqIndex, iaqIndexAccuracy, temperature, humidity, airPressure) {
                                textArea.value += 'IAQ Index: ' + iaqIndex + '\n';

                                if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_UNRELIABLE) {
                                    textArea.value += 'IAQ Index Accuracy: Unreliable\n';
                                }
                                else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_LOW) {
                                    textArea.value += 'IAQ Index Accuracy: Low\n';
                                }
                                else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_MEDIUM) {
                                    textArea.value += 'IAQ Index Accuracy: Medium\n';
                                }
                                else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_HIGH) {
                                    textArea.value += 'IAQ Index Accuracy: High\n';
                                }

                                textArea.value += 'Temperature: ' + temperature/100.0 + ' °C\n';
                                textArea.value += 'Humidity: ' + humidity/100.0 + ' %RH\n';
                                textArea.value += 'Air Pressure: ' + airPressure/100.0 + ' hPa\n';
                            },
                            function (error) {
                                textArea.value += 'Error: ' + error + '\n';
                            }
                        );
                    }
                );
            }
        </script>
    </body>
</html>

Callback (HTML)¶

Download (ExampleCallback.html), Test (ExampleCallback.html)

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<!DOCTYPE html>
<html>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <head>
        <title>Tinkerforge | JavaScript Example</title>
    </head>
    <body>
        <div style="text-align:center;">
            <h1>Air Quality Bricklet Callback Example</h1>
            <p>
                <input value="localhost" id="host" type="text" size="20">:
                <input value="4280" id="port" type="text" size="5">,
                <input value="uid" id="uid" type="text" size="5">
                <input value="Start Example" id="start" type="button" onclick="startExample();">
            </p>
            <p>
                <textarea readonly id="text" cols="80" rows="24" style="resize:none;"
                          >Press "Start Example" to begin ...</textarea>
            </p>
        </div>
        <script src="./Tinkerforge.js" type='text/javascript'></script>
        <script type='text/javascript'>
            var ipcon;
            var textArea = document.getElementById("text");
            function startExample() {
                textArea.value = "";
                var HOST = document.getElementById("host").value;
                var PORT = parseInt(document.getElementById("port").value);
                var UID = document.getElementById("uid").value;
                if(ipcon !== undefined) {
                    ipcon.disconnect();
                }
                ipcon = new Tinkerforge.IPConnection(); // Create IP connection
                var aq = new Tinkerforge.BrickletAirQuality(UID, ipcon); // Create device object
                ipcon.connect(HOST, PORT,
                    function(error) {
                        textArea.value += 'Error: ' + error + '\n';
                    }
                ); // Connect to brickd
                // Don't use device before ipcon is connected

                ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
                    function (connectReason) {
                        // Set period for all values callback to 1s (1000ms)
                        aq.setAllValuesCallbackConfiguration(1000, false);
                    }
                );

                // Register all values callback
                aq.on(Tinkerforge.BrickletAirQuality.CALLBACK_ALL_VALUES,
                    // Callback function for all values callback
                    function (iaqIndex, iaqIndexAccuracy, temperature, humidity, airPressure) {
                        textArea.value += 'IAQ Index: ' + iaqIndex + '\n';

                        if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_UNRELIABLE) {
                            textArea.value += 'IAQ Index Accuracy: Unreliable\n';
                        }
                        else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_LOW) {
                            textArea.value += 'IAQ Index Accuracy: Low\n';
                        }
                        else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_MEDIUM) {
                            textArea.value += 'IAQ Index Accuracy: Medium\n';
                        }
                        else if(iaqIndexAccuracy === Tinkerforge.BrickletAirQuality.ACCURACY_HIGH) {
                            textArea.value += 'IAQ Index Accuracy: High\n';
                        }

                        textArea.value += 'Temperature: ' + temperature/100.0 + ' °C\n';
                        textArea.value += 'Humidity: ' + humidity/100.0 + ' %RH\n';
                        textArea.value += 'Air Pressure: ' + airPressure/100.0 + ' hPa\n';
                        textArea.value += '\n';
                        textArea.scrollTop = textArea.scrollHeight;
                    }
                );
            }
        </script>
    </body>
</html>

Basic Functions¶

new BrickletAirQuality(uid, ipcon)¶

Parameters:	uid – Type: string ipcon – Type: IPConnection
Returns:	airQuality – Type: BrickletAirQuality

Creates an object with the unique device ID uid:

var airQuality = new BrickletAirQuality("YOUR_DEVICE_UID", ipcon);

This object can then be used after the IP Connection is connected.

BrickletAirQuality.getAllValues([returnCallback][, errorCallback])¶

Callback Parameters:	iaqIndex – Type: int, Range: [0 to 500] iaqIndexAccuracy – Type: int, Range: See constants temperature – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1] humidity – Type: int, Unit: 1/100 %, Range: [-231 to 231 - 1] airPressure – Type: int, Unit: 1/100 hPa, Range: [-231 to 231 - 1]
Returns:	undefined

Returns all values measured by the Air Quality Bricklet. The values are IAQ (Indoor Air Quality) Index (higher value means greater level of air pollution), IAQ Index Accuracy, Temperature, Humidity and Air Pressure.

The following constants are available for this function:

For iaq_index_accuracy:

• BrickletAirQuality.ACCURACY_UNRELIABLE = 0
• BrickletAirQuality.ACCURACY_LOW = 1
• BrickletAirQuality.ACCURACY_MEDIUM = 2
• BrickletAirQuality.ACCURACY_HIGH = 3

BrickletAirQuality.setTemperatureOffset(offset[, returnCallback][, errorCallback])¶

Parameters:	offset – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1]
Callback Parameters:	undefined
Returns:	undefined

Sets a temperature offset. A offset of 10 will decrease the measured temperature by 0.1 °C.

If you install this Bricklet into an enclosure and you want to measure the ambient temperature, you may have to decrease the measured temperature by some value to compensate for the error because of the heating inside of the enclosure.

We recommend that you leave the parts in the enclosure running for at least 24 hours such that a temperature equilibrium can be reached. After that you can measure the temperature directly outside of enclosure and set the difference as offset.

This temperature offset is used to calculate the relative humidity and IAQ index measurements. In case the Bricklet is installed in an enclosure, we recommend to measure and set the temperature offset to improve the accuracy of the measurements.

BrickletAirQuality.getTemperatureOffset([returnCallback][, errorCallback])¶

Callback Parameters:	offset – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1]
Returns:	undefined

Returns the temperature offset as set by setTemperatureOffset().

BrickletAirQuality.getIAQIndex([returnCallback][, errorCallback])¶

Callback Parameters:	iaqIndex – Type: int, Range: [0 to 500] iaqIndexAccuracy – Type: int, Range: See constants
Returns:	undefined

Returns the IAQ index and accuracy. The higher the IAQ index, the greater the level of air pollution.

If you want to get the value periodically, it is recommended to use the CALLBACK_IAQ_INDEX callback. You can set the callback configuration with setIAQIndexCallbackConfiguration().

The following constants are available for this function:

For iaq_index_accuracy:

• BrickletAirQuality.ACCURACY_UNRELIABLE = 0
• BrickletAirQuality.ACCURACY_LOW = 1
• BrickletAirQuality.ACCURACY_MEDIUM = 2
• BrickletAirQuality.ACCURACY_HIGH = 3

BrickletAirQuality.getTemperature([returnCallback][, errorCallback])¶

Callback Parameters:	temperature – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1]
Returns:	undefined

Returns temperature.

If you want to get the value periodically, it is recommended to use the CALLBACK_TEMPERATURE callback. You can set the callback configuration with setTemperatureCallbackConfiguration().

BrickletAirQuality.getHumidity([returnCallback][, errorCallback])¶

Callback Parameters:	humidity – Type: int, Unit: 1/100 %, Range: [-231 to 231 - 1]
Returns:	undefined

Returns relative humidity.

If you want to get the value periodically, it is recommended to use the CALLBACK_HUMIDITY callback. You can set the callback configuration with setHumidityCallbackConfiguration().

BrickletAirQuality.getAirPressure([returnCallback][, errorCallback])¶

Callback Parameters:	airPressure – Type: int, Unit: 1/100 hPa, Range: [-231 to 231 - 1]
Returns:	undefined

Returns air pressure.

If you want to get the value periodically, it is recommended to use the CALLBACK_AIR_PRESSURE callback. You can set the callback configuration with setAirPressureCallbackConfiguration().

Advanced Functions¶

BrickletAirQuality.removeCalibration([returnCallback][, errorCallback])¶

Callback Parameters:	undefined
Returns:	undefined

Deletes the calibration from flash. After you call this function, you need to power cycle the Air Quality Bricklet.

On the next power up the Bricklet will start a new calibration, as if it was started for the very first time.

The calibration is based on the data of the last four days, so it takes four days until a full calibration is re-established.

New in version 2.0.3 (Plugin).

BrickletAirQuality.setBackgroundCalibrationDuration(duration[, returnCallback][, errorCallback])¶

Parameters:	duration – Type: int, Range: See constants, Default: 1
Callback Parameters:	undefined
Returns:	undefined

The Air Quality Bricklet uses an automatic background calibration mechanism to calculate the IAQ Index. This calibration mechanism considers a history of measured data. The duration of this history can be configured to either be 4 days or 28 days.

If you keep the Bricklet mostly at one place and it does not get moved around to different environments, we recommend that you use a duration of 28 days.

If you change the duration, the current calibration will be discarded and the calibration will start from beginning again. The configuration of the duration is saved in flash, so you should only have to call this function once in the lifetime of the Bricklet.

The Bricklet has to be power cycled after this function is called for a duration change to take effect.

Before firmware version 2.0.3 this was not configurable and the duration was 4 days.

The default value (since firmware version 2.0.3) is 28 days.

The following constants are available for this function:

For duration:

• BrickletAirQuality.DURATION_4_DAYS = 0
• BrickletAirQuality.DURATION_28_DAYS = 1

New in version 2.0.3 (Plugin).

BrickletAirQuality.getBackgroundCalibrationDuration([returnCallback][, errorCallback])¶

Callback Parameters:	duration – Type: int, Range: See constants, Default: 1
Returns:	undefined

Returns the background calibration duration as set by setBackgroundCalibrationDuration().

The following constants are available for this function:

For duration:

• BrickletAirQuality.DURATION_4_DAYS = 0
• BrickletAirQuality.DURATION_28_DAYS = 1

New in version 2.0.3 (Plugin).

BrickletAirQuality.getSPITFPErrorCount([returnCallback][, errorCallback])¶

Callback Parameters:	errorCountAckChecksum – Type: int, Range: [0 to 232 - 1] errorCountMessageChecksum – Type: int, Range: [0 to 232 - 1] errorCountFrame – Type: int, Range: [0 to 232 - 1] errorCountOverflow – Type: int, Range: [0 to 232 - 1]
Returns:	undefined

Returns the error count for the communication between Brick and Bricklet.

The errors are divided into

• ACK checksum errors,
• message checksum errors,
• framing errors and
• overflow errors.

The errors counts are for errors that occur on the Bricklet side. All Bricks have a similar function that returns the errors on the Brick side.

BrickletAirQuality.setStatusLEDConfig(config[, returnCallback][, errorCallback])¶

Parameters:	config – Type: int, Range: See constants, Default: 3
Callback Parameters:	undefined
Returns:	undefined

Sets the status LED configuration. By default the LED shows communication traffic between Brick and Bricklet, it flickers once for every 10 received data packets.

You can also turn the LED permanently on/off or show a heartbeat.

If the Bricklet is in bootloader mode, the LED is will show heartbeat by default.

The following constants are available for this function:

For config:

• BrickletAirQuality.STATUS_LED_CONFIG_OFF = 0
• BrickletAirQuality.STATUS_LED_CONFIG_ON = 1
• BrickletAirQuality.STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
• BrickletAirQuality.STATUS_LED_CONFIG_SHOW_STATUS = 3

BrickletAirQuality.getStatusLEDConfig([returnCallback][, errorCallback])¶

Callback Parameters:	config – Type: int, Range: See constants, Default: 3
Returns:	undefined

Returns the configuration as set by setStatusLEDConfig()

The following constants are available for this function:

For config:

• BrickletAirQuality.STATUS_LED_CONFIG_OFF = 0
• BrickletAirQuality.STATUS_LED_CONFIG_ON = 1
• BrickletAirQuality.STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
• BrickletAirQuality.STATUS_LED_CONFIG_SHOW_STATUS = 3

BrickletAirQuality.getChipTemperature([returnCallback][, errorCallback])¶

Callback Parameters:	temperature – Type: int, Unit: 1 °C, Range: [-215 to 215 - 1]
Returns:	undefined

Returns the temperature as measured inside the microcontroller. The value returned is not the ambient temperature!

The temperature is only proportional to the real temperature and it has bad accuracy. Practically it is only useful as an indicator for temperature changes.

BrickletAirQuality.reset([returnCallback][, errorCallback])¶

Callback Parameters:	undefined
Returns:	undefined

Calling this function will reset the Bricklet. All configurations will be lost.

After a reset you have to create new device objects, calling functions on the existing ones will result in undefined behavior!

BrickletAirQuality.getIdentity([returnCallback][, errorCallback])¶

Callback Parameters:

uid – Type: string, Length: up to 8 connectedUid – Type: string, Length: up to 8 position – Type: char, Range: ['a' to 'h', 'z'] hardwareVersion – Type: [int, ...], Length: 3 0: major – Type: int, Range: [0 to 255] 1: minor – Type: int, Range: [0 to 255] 2: revision – Type: int, Range: [0 to 255] firmwareVersion – Type: [int, ...], Length: 3 0: major – Type: int, Range: [0 to 255] 1: minor – Type: int, Range: [0 to 255] 2: revision – Type: int, Range: [0 to 255] deviceIdentifier – Type: int, Range: [0 to 216 - 1]

Returns:

undefined

Returns the UID, the UID where the Bricklet is connected to, the position, the hardware and firmware version as well as the device identifier.

The position can be 'a', 'b', 'c', 'd', 'e', 'f', 'g' or 'h' (Bricklet Port). A Bricklet connected to an Isolator Bricklet is always at position 'z'.

The device identifier numbers can be found here. There is also a constant for the device identifier of this Bricklet.

Callback Configuration Functions¶

BrickletAirQuality.on(callback_id, function[, errorCallback])¶

Parameters:	callback_id – Type: int function – Type: function
Returns:	undefined

Registers the given function with the given callback_id.

The available callback IDs with corresponding function signatures are listed below.

BrickletAirQuality.setAllValuesCallbackConfiguration(period, valueHasToChange[, returnCallback][, errorCallback])¶

Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false
Callback Parameters:	undefined
Returns:	undefined

The period is the period with which the CALLBACK_ALL_VALUES callback is triggered periodically. A value of 0 turns the callback off.

If the value has to change-parameter is set to true, the callback is only triggered after at least one of the values has changed. If the values didn't change within the period, the callback is triggered immediately on change.

If it is set to false, the callback is continuously triggered with the period, independent of the value.

BrickletAirQuality.getAllValuesCallbackConfiguration([returnCallback][, errorCallback])¶

Callback Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false
Returns:	undefined

Returns the callback configuration as set by setAllValuesCallbackConfiguration().

BrickletAirQuality.setIAQIndexCallbackConfiguration(period, valueHasToChange[, returnCallback][, errorCallback])¶

Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false
Callback Parameters:	undefined
Returns:	undefined

The period is the period with which the CALLBACK_IAQ_INDEX callback is triggered periodically. A value of 0 turns the callback off.

If the value has to change-parameter is set to true, the callback is only triggered after at least one of the values has changed. If the values didn't change within the period, the callback is triggered immediately on change.

If it is set to false, the callback is continuously triggered with the period, independent of the value.

BrickletAirQuality.getIAQIndexCallbackConfiguration([returnCallback][, errorCallback])¶

Callback Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false
Returns:	undefined

Returns the callback configuration as set by setIAQIndexCallbackConfiguration().

BrickletAirQuality.setTemperatureCallbackConfiguration(period, valueHasToChange, option, min, max[, returnCallback][, errorCallback])¶

Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1], Default: 0 max – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1], Default: 0
Callback Parameters:	undefined
Returns:	undefined

The period is the period with which the CALLBACK_TEMPERATURE callback is triggered periodically. A value of 0 turns the callback off.

If the value has to change-parameter is set to true, the callback is only triggered after the value has changed. If the value didn't change within the period, the callback is triggered immediately on change.

If it is set to false, the callback is continuously triggered with the period, independent of the value.

It is furthermore possible to constrain the callback with thresholds.

The option-parameter together with min/max sets a threshold for the CALLBACK_TEMPERATURE callback.

The following options are possible:

Option	Description
'x'	Threshold is turned off
'o'	Threshold is triggered when the value is outside the min and max values
'i'	Threshold is triggered when the value is inside or equal to the min and max values
'<'	Threshold is triggered when the value is smaller than the min value (max is ignored)
'>'	Threshold is triggered when the value is greater than the min value (max is ignored)

If the option is set to 'x' (threshold turned off) the callback is triggered with the fixed period.

The following constants are available for this function:

For option:

• BrickletAirQuality.THRESHOLD_OPTION_OFF = 'x'
• BrickletAirQuality.THRESHOLD_OPTION_OUTSIDE = 'o'
• BrickletAirQuality.THRESHOLD_OPTION_INSIDE = 'i'
• BrickletAirQuality.THRESHOLD_OPTION_SMALLER = '<'
• BrickletAirQuality.THRESHOLD_OPTION_GREATER = '>'

BrickletAirQuality.getTemperatureCallbackConfiguration([returnCallback][, errorCallback])¶

Callback Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1], Default: 0 max – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1], Default: 0
Returns:	undefined

Returns the callback configuration as set by setTemperatureCallbackConfiguration().

The following constants are available for this function:

For option:

• BrickletAirQuality.THRESHOLD_OPTION_OFF = 'x'
• BrickletAirQuality.THRESHOLD_OPTION_OUTSIDE = 'o'
• BrickletAirQuality.THRESHOLD_OPTION_INSIDE = 'i'
• BrickletAirQuality.THRESHOLD_OPTION_SMALLER = '<'
• BrickletAirQuality.THRESHOLD_OPTION_GREATER = '>'

BrickletAirQuality.setHumidityCallbackConfiguration(period, valueHasToChange, option, min, max[, returnCallback][, errorCallback])¶

Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: 1/100 %, Range: [-231 to 231 - 1], Default: 0 max – Type: int, Unit: 1/100 %, Range: [-231 to 231 - 1], Default: 0
Callback Parameters:	undefined
Returns:	undefined

The period is the period with which the CALLBACK_HUMIDITY callback is triggered periodically. A value of 0 turns the callback off.

If the value has to change-parameter is set to true, the callback is only triggered after the value has changed. If the value didn't change within the period, the callback is triggered immediately on change.

If it is set to false, the callback is continuously triggered with the period, independent of the value.

It is furthermore possible to constrain the callback with thresholds.

The option-parameter together with min/max sets a threshold for the CALLBACK_HUMIDITY callback.

The following options are possible:

Option	Description
'x'	Threshold is turned off
'o'	Threshold is triggered when the value is outside the min and max values
'i'	Threshold is triggered when the value is inside or equal to the min and max values
'<'	Threshold is triggered when the value is smaller than the min value (max is ignored)
'>'	Threshold is triggered when the value is greater than the min value (max is ignored)

If the option is set to 'x' (threshold turned off) the callback is triggered with the fixed period.

The following constants are available for this function:

For option:

• BrickletAirQuality.THRESHOLD_OPTION_OFF = 'x'
• BrickletAirQuality.THRESHOLD_OPTION_OUTSIDE = 'o'
• BrickletAirQuality.THRESHOLD_OPTION_INSIDE = 'i'
• BrickletAirQuality.THRESHOLD_OPTION_SMALLER = '<'
• BrickletAirQuality.THRESHOLD_OPTION_GREATER = '>'

BrickletAirQuality.getHumidityCallbackConfiguration([returnCallback][, errorCallback])¶

Callback Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: 1/100 %, Range: [-231 to 231 - 1], Default: 0 max – Type: int, Unit: 1/100 %, Range: [-231 to 231 - 1], Default: 0
Returns:	undefined

Returns the callback configuration as set by setHumidityCallbackConfiguration().

The following constants are available for this function:

For option:

• BrickletAirQuality.THRESHOLD_OPTION_OFF = 'x'
• BrickletAirQuality.THRESHOLD_OPTION_OUTSIDE = 'o'
• BrickletAirQuality.THRESHOLD_OPTION_INSIDE = 'i'
• BrickletAirQuality.THRESHOLD_OPTION_SMALLER = '<'
• BrickletAirQuality.THRESHOLD_OPTION_GREATER = '>'

BrickletAirQuality.setAirPressureCallbackConfiguration(period, valueHasToChange, option, min, max[, returnCallback][, errorCallback])¶

Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: 1/100 hPa, Range: [-231 to 231 - 1], Default: 0 max – Type: int, Unit: 1/100 hPa, Range: [-231 to 231 - 1], Default: 0
Callback Parameters:	undefined
Returns:	undefined

The period is the period with which the CALLBACK_AIR_PRESSURE callback is triggered periodically. A value of 0 turns the callback off.

If the value has to change-parameter is set to true, the callback is only triggered after the value has changed. If the value didn't change within the period, the callback is triggered immediately on change.

If it is set to false, the callback is continuously triggered with the period, independent of the value.

It is furthermore possible to constrain the callback with thresholds.

The option-parameter together with min/max sets a threshold for the CALLBACK_AIR_PRESSURE callback.

The following options are possible:

Option	Description
'x'	Threshold is turned off
'o'	Threshold is triggered when the value is outside the min and max values
'i'	Threshold is triggered when the value is inside or equal to the min and max values
'<'	Threshold is triggered when the value is smaller than the min value (max is ignored)
'>'	Threshold is triggered when the value is greater than the min value (max is ignored)

If the option is set to 'x' (threshold turned off) the callback is triggered with the fixed period.

The following constants are available for this function:

For option:

• BrickletAirQuality.THRESHOLD_OPTION_OFF = 'x'
• BrickletAirQuality.THRESHOLD_OPTION_OUTSIDE = 'o'
• BrickletAirQuality.THRESHOLD_OPTION_INSIDE = 'i'
• BrickletAirQuality.THRESHOLD_OPTION_SMALLER = '<'
• BrickletAirQuality.THRESHOLD_OPTION_GREATER = '>'

BrickletAirQuality.getAirPressureCallbackConfiguration([returnCallback][, errorCallback])¶

Callback Parameters:	period – Type: int, Unit: 1 ms, Range: [0 to 232 - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: 1/100 hPa, Range: [-231 to 231 - 1], Default: 0 max – Type: int, Unit: 1/100 hPa, Range: [-231 to 231 - 1], Default: 0
Returns:	undefined

Returns the callback configuration as set by setAirPressureCallbackConfiguration().

The following constants are available for this function:

For option:

• BrickletAirQuality.THRESHOLD_OPTION_OFF = 'x'
• BrickletAirQuality.THRESHOLD_OPTION_OUTSIDE = 'o'
• BrickletAirQuality.THRESHOLD_OPTION_INSIDE = 'i'
• BrickletAirQuality.THRESHOLD_OPTION_SMALLER = '<'
• BrickletAirQuality.THRESHOLD_OPTION_GREATER = '>'

Callbacks¶

Callbacks can be registered to receive time critical or recurring data from the device. The registration is done with the on() function of the device object. The first parameter is the callback ID and the second parameter the callback function:

airQuality.on(BrickletAirQuality.CALLBACK_EXAMPLE,
    function (param) {
        console.log(param);
    }
);

The available constants with inherent number and type of parameters are described below.

BrickletAirQuality.CALLBACK_ALL_VALUES¶

Callback Parameters:	iaqIndex – Type: int, Range: [0 to 500] iaqIndexAccuracy – Type: int, Range: See constants temperature – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1] humidity – Type: int, Unit: 1/100 %, Range: [-231 to 231 - 1] airPressure – Type: int, Unit: 1/100 hPa, Range: [-231 to 231 - 1]

This callback is triggered periodically according to the configuration set by setAllValuesCallbackConfiguration().

The parameters are the same as getAllValues().

The following constants are available for this function:

For iaq_index_accuracy:

• BrickletAirQuality.ACCURACY_UNRELIABLE = 0
• BrickletAirQuality.ACCURACY_LOW = 1
• BrickletAirQuality.ACCURACY_MEDIUM = 2
• BrickletAirQuality.ACCURACY_HIGH = 3

BrickletAirQuality.CALLBACK_IAQ_INDEX¶

Callback Parameters:	iaqIndex – Type: int, Range: [0 to 500] iaqIndexAccuracy – Type: int, Range: See constants

This callback is triggered periodically according to the configuration set by setIAQIndexCallbackConfiguration().

The parameters are the same as getIAQIndex().

The following constants are available for this function:

For iaq_index_accuracy:

• BrickletAirQuality.ACCURACY_UNRELIABLE = 0
• BrickletAirQuality.ACCURACY_LOW = 1
• BrickletAirQuality.ACCURACY_MEDIUM = 2
• BrickletAirQuality.ACCURACY_HIGH = 3

BrickletAirQuality.CALLBACK_TEMPERATURE¶

Callback Parameters:	temperature – Type: int, Unit: 1/100 °C, Range: [-231 to 231 - 1]

This callback is triggered periodically according to the configuration set by setTemperatureCallbackConfiguration().

The parameter is the same as getTemperature().

BrickletAirQuality.CALLBACK_HUMIDITY¶

Callback Parameters:	humidity – Type: int, Unit: 1/100 %, Range: [-231 to 231 - 1]

This callback is triggered periodically according to the configuration set by setHumidityCallbackConfiguration().

The parameter is the same as getHumidity().

BrickletAirQuality.CALLBACK_AIR_PRESSURE¶

Callback Parameters:	airPressure – Type: int, Unit: 1/100 hPa, Range: [-231 to 231 - 1]

This callback is triggered periodically according to the configuration set by setAirPressureCallbackConfiguration().

The parameter is the same as getAirPressure().

Virtual Functions¶

Virtual functions don't communicate with the device itself, but operate only on the API bindings device object. They can be called without the corresponding IP Connection object being connected.

BrickletAirQuality.getAPIVersion()¶

Returns:	apiVersion – Type: [int, ...], Length: 3 0: major – Type: int, Range: [0 to 255] 1: minor – Type: int, Range: [0 to 255] 2: revision – Type: int, Range: [0 to 255]

Returns the version of the API definition implemented by this API bindings. This is neither the release version of this API bindings nor does it tell you anything about the represented Brick or Bricklet.

BrickletAirQuality.getResponseExpected(functionId[, errorCallback])¶

Parameters:	functionId – Type: int, Range: See constants
Returns:	responseExpected – Type: boolean

Returns the response expected flag for the function specified by the function ID parameter. It is true if the function is expected to send a response, false otherwise.

For getter functions this is enabled by default and cannot be disabled, because those functions will always send a response. For callback configuration functions it is enabled by default too, but can be disabled by setResponseExpected(). For setter functions it is disabled by default and can be enabled.

Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is sent and errors are silently ignored, because they cannot be detected.

The following constants are available for this function:

For function_id:

• BrickletAirQuality.FUNCTION_SET_TEMPERATURE_OFFSET = 2
• BrickletAirQuality.FUNCTION_SET_ALL_VALUES_CALLBACK_CONFIGURATION = 4
• BrickletAirQuality.FUNCTION_SET_IAQ_INDEX_CALLBACK_CONFIGURATION = 8
• BrickletAirQuality.FUNCTION_SET_TEMPERATURE_CALLBACK_CONFIGURATION = 12
• BrickletAirQuality.FUNCTION_SET_HUMIDITY_CALLBACK_CONFIGURATION = 16
• BrickletAirQuality.FUNCTION_SET_AIR_PRESSURE_CALLBACK_CONFIGURATION = 20
• BrickletAirQuality.FUNCTION_REMOVE_CALIBRATION = 23
• BrickletAirQuality.FUNCTION_SET_BACKGROUND_CALIBRATION_DURATION = 24
• BrickletAirQuality.FUNCTION_SET_WRITE_FIRMWARE_POINTER = 237
• BrickletAirQuality.FUNCTION_SET_STATUS_LED_CONFIG = 239
• BrickletAirQuality.FUNCTION_RESET = 243
• BrickletAirQuality.FUNCTION_WRITE_UID = 248

BrickletAirQuality.setResponseExpected(functionId, responseExpected[, errorCallback])¶

Parameters:	functionId – Type: int, Range: See constants responseExpected – Type: boolean
Returns:	undefined

Changes the response expected flag of the function specified by the function ID parameter. This flag can only be changed for setter (default value: false) and callback configuration functions (default value: true). For getter functions it is always enabled.

Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is sent and errors are silently ignored, because they cannot be detected.

The following constants are available for this function:

For function_id:

• BrickletAirQuality.FUNCTION_SET_TEMPERATURE_OFFSET = 2
• BrickletAirQuality.FUNCTION_SET_ALL_VALUES_CALLBACK_CONFIGURATION = 4
• BrickletAirQuality.FUNCTION_SET_IAQ_INDEX_CALLBACK_CONFIGURATION = 8
• BrickletAirQuality.FUNCTION_SET_TEMPERATURE_CALLBACK_CONFIGURATION = 12
• BrickletAirQuality.FUNCTION_SET_HUMIDITY_CALLBACK_CONFIGURATION = 16
• BrickletAirQuality.FUNCTION_SET_AIR_PRESSURE_CALLBACK_CONFIGURATION = 20
• BrickletAirQuality.FUNCTION_REMOVE_CALIBRATION = 23
• BrickletAirQuality.FUNCTION_SET_BACKGROUND_CALIBRATION_DURATION = 24
• BrickletAirQuality.FUNCTION_SET_WRITE_FIRMWARE_POINTER = 237
• BrickletAirQuality.FUNCTION_SET_STATUS_LED_CONFIG = 239
• BrickletAirQuality.FUNCTION_RESET = 243
• BrickletAirQuality.FUNCTION_WRITE_UID = 248

BrickletAirQuality.setResponseExpectedAll(responseExpected)¶

Parameters:	responseExpected – Type: boolean
Returns:	undefined

Changes the response expected flag for all setter and callback configuration functions of this device at once.

Internal Functions¶

Internal functions are used for maintenance tasks such as flashing a new firmware of changing the UID of a Bricklet. These task should be performed using Brick Viewer instead of using the internal functions directly.

BrickletAirQuality.setBootloaderMode(mode[, returnCallback][, errorCallback])¶

Parameters:	mode – Type: int, Range: See constants
Callback Parameters:	status – Type: int, Range: See constants
Returns:	undefined

Sets the bootloader mode and returns the status after the requested mode change was instigated.

You can change from bootloader mode to firmware mode and vice versa. A change from bootloader mode to firmware mode will only take place if the entry function, device identifier and CRC are present and correct.

This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.

The following constants are available for this function:

For mode:

• BrickletAirQuality.BOOTLOADER_MODE_BOOTLOADER = 0
• BrickletAirQuality.BOOTLOADER_MODE_FIRMWARE = 1
• BrickletAirQuality.BOOTLOADER_MODE_BOOTLOADER_WAIT_FOR_REBOOT = 2
• BrickletAirQuality.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_REBOOT = 3
• BrickletAirQuality.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_ERASE_AND_REBOOT = 4

For status:

• BrickletAirQuality.BOOTLOADER_STATUS_OK = 0
• BrickletAirQuality.BOOTLOADER_STATUS_INVALID_MODE = 1
• BrickletAirQuality.BOOTLOADER_STATUS_NO_CHANGE = 2
• BrickletAirQuality.BOOTLOADER_STATUS_ENTRY_FUNCTION_NOT_PRESENT = 3
• BrickletAirQuality.BOOTLOADER_STATUS_DEVICE_IDENTIFIER_INCORRECT = 4
• BrickletAirQuality.BOOTLOADER_STATUS_CRC_MISMATCH = 5

BrickletAirQuality.getBootloaderMode([returnCallback][, errorCallback])¶

Callback Parameters:	mode – Type: int, Range: See constants
Returns:	undefined

Returns the current bootloader mode, see setBootloaderMode().

The following constants are available for this function:

For mode:

• BrickletAirQuality.BOOTLOADER_MODE_BOOTLOADER = 0
• BrickletAirQuality.BOOTLOADER_MODE_FIRMWARE = 1
• BrickletAirQuality.BOOTLOADER_MODE_BOOTLOADER_WAIT_FOR_REBOOT = 2
• BrickletAirQuality.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_REBOOT = 3
• BrickletAirQuality.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_ERASE_AND_REBOOT = 4

BrickletAirQuality.setWriteFirmwarePointer(pointer[, returnCallback][, errorCallback])¶

Parameters:	pointer – Type: int, Unit: 1 B, Range: [0 to 232 - 1]
Callback Parameters:	undefined
Returns:	undefined

Sets the firmware pointer for writeFirmware(). The pointer has to be increased by chunks of size 64. The data is written to flash every 4 chunks (which equals to one page of size 256).

This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.

BrickletAirQuality.writeFirmware(data[, returnCallback][, errorCallback])¶

Parameters:	data – Type: [int, ...], Length: 64, Range: [0 to 255]
Callback Parameters:	status – Type: int, Range: [0 to 255]
Returns:	undefined

Writes 64 Bytes of firmware at the position as written by setWriteFirmwarePointer() before. The firmware is written to flash every 4 chunks.

You can only write firmware in bootloader mode.

This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.

BrickletAirQuality.writeUID(uid[, returnCallback][, errorCallback])¶

Parameters:	uid – Type: int, Range: [0 to 232 - 1]
Callback Parameters:	undefined
Returns:	undefined

Writes a new UID into flash. If you want to set a new UID you have to decode the Base58 encoded UID string into an integer first.

We recommend that you use Brick Viewer to change the UID.

BrickletAirQuality.readUID([returnCallback][, errorCallback])¶

Callback Parameters:	uid – Type: int, Range: [0 to 232 - 1]
Returns:	undefined

Returns the current UID as an integer. Encode as Base58 to get the usual string version.

Constants¶

BrickletAirQuality.DEVICE_IDENTIFIER¶

This constant is used to identify a Air Quality Bricklet.

The getIdentity() function and the IPConnection.CALLBACK_ENUMERATE callback of the IP Connection have a device_identifier parameter to specify the Brick's or Bricklet's type.

BrickletAirQuality.DEVICE_DISPLAY_NAME¶

This constant represents the human readable name of a Air Quality Bricklet.