openmv/scripts/examples/07-Interface-Library/03-Modbus/modbus_rtu_slave.py

22 lines
624 B
Python

# This work is licensed under the MIT license.
# Copyright (c) 2013-2023 OpenMV LLC. All rights reserved.
# https://github.com/openmv/openmv/blob/master/LICENSE
#
import time
from machine import UART
from modbus import ModbusRTU
uart = UART(3, 115200, parity=None, stop=2, timeout=1, timeout_char=4)
modbus = ModbusRTU(uart, register_num=9999)
while True:
if modbus.any():
modbus.handle(debug=True)
else:
time.sleep_ms(100)
modbus.REGISTER[0] = 1000
modbus.REGISTER[1] += 1
modbus.REGISTER[3] += 3
# print(modbus.REGISTER[10:15])
# image processing in there