Firmata Analog Output Channel

Description

Analog output channel on a Firmata Device.

Note: Most Firmata-compatible devices do not support true analog output. Instead, they simulate it using pulse-width modulation (PWM). Therefore, the actual output voltage will cycle between the minimum and maximum voltages supported by the device, producing a time-average voltage that approximates the desired value.

Signature

iochannel/firmata_analog_output

Required Parameters

pin_number

Example:3

Output pin number

value

Variable from which to read output values. The value must be between 0 and 1 (inclusive) and indicates the fraction of the device’s operating voltage (typically 5V or 3.3V) to output on the specified pin.

Placement

Allowed at top level:	No
Allowed parent:	Firmata Device