The Analog Out Bricklet can be used to extend the features of Bricks by the capability to generate voltages between 0V and 5V*. The voltage can be configured directly in Volt without any conversion. The device is equipped with a 12-bit Digital-to-Analog Converter (DAC). Instead of generating a voltage it is also possible to choose between a 1k, 100k or 500k Ohm load resistor to ground (pull-down).
|Voltage||0V - 5V* in 1mV steps, 12bit resolution|
|Dimensions (W x D x H)||30 x 25 x 14mm (1.18 x 0.98 x 0.55”)|
* The maximum output voltage depends on the supply voltage. If the connected Brick is powered over USB, 5V may not be reached. The reason for this is a voltage drop about 0.5V caused by protection diodes on our products. If you need to reach 5V, you have to use a stack supply, e.g. the Step-Down Power Supply.
The Analog Out Bricklet has four terminals. All terminals are outputs. Between VOUT and GND the output voltage is applied. 3.3V and 5V are additional outputs with fixed voltages you can use to power things.
To test the Analog Out Bricklet you need to have the Brick Daemon and the Brick Viewer installed (for installation guides click here and here) and the Brick Viewer has to be connected to the Brick Daemon.
Connect the Analog Out Bricklet to a Brick with the supplied cable (see picture below).
If you connect the Brick to the PC over USB, you should see a new tab named “Analog Out Bricklet” in the Brick Viewer after a moment. Select this tab. In this tab you can configure the voltage on the output pin. For test purposes, you can measure this voltage with a voltmeter. If everything went as expected the voltage on the voltmeter and the voltage you have configured should be identical.
After this test you can go on with writing your own application. See the Programming Interface section for the API of the Analog Out Bricklet and examples in different programming languages.
See High Level Programming Interface for a detailed description.