Hi admin
It is modbus ,
According to a test I did, I need Modbus, so according to what you say, I need to use esp32. Do I need to connect the TX and RX on the server to the GPIO connections (according to the red arrow in the picture), if so, which of the 4 GPIOs do I connect to and what do I need to put in the yaml file
tx_pin: GPIO13
rx_pin: GPIO16
or I need to connect to A, B (according to the yellow arrow in the picture)
It is modbus ,
According to a test I did, I need Modbus, so according to what you say, I need to use esp32. Do I need to connect the TX and RX on the server to the GPIO connections (according to the red arrow in the picture), if so, which of the 4 GPIOs do I connect to and what do I need to put in the yaml file
tx_pin: GPIO13
rx_pin: GPIO16
or I need to connect to A, B (according to the yellow arrow in the picture)