I am refering to this example. https://industruino.com/blog/our-news-1/post/rs485-serial-communication-28
I have two industruino devices connected as per shown in above link the sender code is working fine. But at the reciever device no result.
At reciver end lcd.print(Serial.available()) = 0 and Serial.read() = -1;
Hi, are you using the exact code as in the link example? It does not print the Serial.available() and it only does Serial.read() when Serial.available() > 0
Make sure your wires are correct A to A, B to B and both INDIOs have to be powered with external 12/24V
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