The Bricklet features 4 I/O pins that can be independently configured as digital inputs or outputs. Each input pin can additionally be configured with a pull-up or as interrupt source. Via terminal blocks all signals can be accessed. Two additional terminal blocks deliver 3.3V and GND.
Human interfaces, such as switches, push-buttons and LEDs are typical applications of this Bricklet.
This Bricklet ist not galvanically isolated to the Tinkerforge system. This means that there is a direct electrical connection between the terminals of the Bricklet and the rest of the system. Dependent of the application this can lead to undesired connections, ground loops or short circuits. These problems can be prevented by using the Bricklet together with a Isolator Bricklet.
The IO-4 Bricklet 2.0 has a 7 pole Bricklet connector and is connected to a Brick with a 7p-10p Bricklet cable.
Property Value I/O Pins 4 Current Consumption 30mW (6mA at 5V) I/O Voltages Fixed 3.3V Maximum Output Current 50mA** (per output pin), 100mA (3.3V fixed output pin) Maximum API Calls* set-value (1kHz), get-value (0.5kHz), callbacks (1kHz) Dimensions (W x D x H) 35 x 35 x 14mm (1.38 x 1.38 x 0.55") Weight 15g
* depends on your system (OS, CPU etc.)
** 50mA per pin, but max 130mA over all pins
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