connection simulator modbus rtu and arduino modbus slave oled display i2c: pdacontrol Published 9 years ago • 6.2K plays • Length 3:45 Download video MP4 Download video MP3 Similar videos 18:17 delta plc to arduino oled display - 3 device rs232 communication 0:33 arduino uno r3 8:58 what is modbus and how does it work? 6:17 test esp8266 modbus rtu slave and simulator modbus rtu master: pda_control 9:01 arduino modbus plc with rs232 and mango m2m hmi