tinysbus is a small Python package for interfacing with SAIA S-Bus devices.
import tinysbus
inst = tinysbus.Instrument(serial_port='/dev/ttyUSB0',
baurate=38400,
address=1)
# Read a single register:
inst.read_register(20)
# Read 4 registers, starting at number 20
inst.read_registers(20, 4)