ARDUINO UNO SOFTWARESERIAL SERIAL

If you look at the schematic for the RobotDyn board when you put the Arduino and ESP8266 in direct communication (DIP switch 1 &2) the feed from the former to the latter gets adjusted by some circuitry. One particular potential (get it!) issue I am not too sure about is that the Arduino runs on 5V and the ESP8266 on 3.3V.You lose some digital pins you could use for something else.Not sure why they did not document this on the RobotDyn FAQs вЂ“ flicking DIP switches all the time is a massive hassle.

ARDUINO UNO SOFTWARESERIAL SERIAL

I can dev my code for the Arduino with serial output for debugging AND have the UNO and ESP talking to each other (using the ESP8266 AT instruction set). So you talk to the ESP8266 through this, and use the actual Serial on the Uno for uploading etc. SoftwareSerial lets you coerce 2 * nof the ArduinoвЂ™s digital pins to add nsoftware additional serial ports. Not both.Д¬onsequently, unless I am missing something, you cannot be developing your Arduino code and have the wi-fi connection via the ESP8266 working at the same time рџ• This make things a like cumbersome. The onboard UNO on the RobotDyn only has a single вЂhardwareвЂ™ serial port which means you can either use the built-in serial for logging or comms to the ESP8266. The RobotDyn board has some DIP switches on, which allow you to UART to either the ESP8266 or ATmega328p, so you can upload code to one or the other and вЂlogвЂ™ for debugging.Д«ut, for the two to play nicely (with ESP8226 in ATmode) they need to use UART (or вЂserialвЂ™ or TX and RX) to talk.

Arduino uno softwareserial