revpi-io-to-modbus

#!/usr/bin/env python3

import revpimodio2

# wrapper function for event handler which takes the desired output name as a parameter
def wrapper(output):
    def event_fn(name, value):
        # write value to output with given name
        rpi.io[output].value = int(value)

    return event_fn

# create revpimodio instance
rpi = revpimodio2.RevPiModIO(autorefresh=True)

# cleanup on ctrl + c
rpi.handlesignalend()

# the input -> output mapping
mapping = { "I_1": "Output_1", "I_2": "Output_2" }

for input_name, output_name in mapping.items():
    assert input_name in rpi.io
    assert output_name in rpi.io

    # register IO event for input_name with handler returned from wrapper
    rpi.io[input_name].reg_event(wrapper(output_name), prefire=True)

# start main loop
rpi.mainloop(blocking=False)