Modbus RTU 0x0, 0x1 ,0x3 and 0x4 code

[ChrisWard]

Hello Radwan

Try your request here:

ModbusRTU extension

I have made an extension for Modbus RTU serial communication, for my own needs. It can read and write single registers and is based on my SerialOTG extension (can be expanded to read/write multiple registers). I can make it available to Appinventor users. Please return if there is any interest and any specific functions that you need.