openmv/scripts/examples/32-modbus/modbus_rtu_slave.py
2019-11-04 19:36:22 +08:00

18 lines
461 B
Python

import time
from pyb 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(100)
modbus.REGISTER[0] = 1000
modbus.REGISTER[1] += 1
modbus.REGISTER[3] += 3
#print(modbus.REGISTER[10:15])
# image processing in there