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Protocol supports communication via GPIO (General Purpose I/O) interface on inputs/outputs of Raspberry PI and computers built on a RPI Compute Module. Currently supported are:
- Raspberry PI (version 2 and 3) based on pigpio library - communication via GPIO (General Purpose I/O) pins
- Techbase NPE - X500 M3 (DIN-mounted industrial computer built on RPI Compute Module 3 with optional industrial inputs and outputs)
The communication was tested with Raspberry PI (version 3) and NPE-X500-M3-MAX-3G.
The protocol allows For Raspberry PI, the protocol supports reading of digital inputs (instantaneous values as well as counting signal changes with an optional time filter) and setting digital outputs to a constant value or pulse-width modulation (PWM).
For NPE X500 the protocol supports reading of digital and analog inputs and status of user button and analog inputs (in case of NPE-X500 also a value of user button), writing to digital outputs (for NPE-X500 also , setting relay outputs, working with user LEDs and a buzzer).
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