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arduinonextion
Rezzouki Joe
Rezzouki Joe

Reputation: 1

Arduino Mega and Nextion display Serial communication

I'm working on Arduino Project using Nextion Display. At first It worked perfectly Arduino used to read and write data to display shown component, but for some reason Nextion doesn't send data to arduino anymore, I checked the Voltage supply common gnd, and wiring is perfect (TX ==> RX2 , RX ==> TX2).

I'm using Nextion Library which is working bu default for Arduino Mega , so no change is necessary.

here is the link to nextion library: https://github.com/itead/ITEADLIB_Arduino_Nextion

I'm sure the code doesn't contain any problems. It's all about serial communication from nextion display.

Upvotes: 0

Views: 3403

Answers (1)

Charley57
Charley57

Reputation: 83

I have found out that the Nextion Display becomes unresponsive if you have any delays in your loop.

In several parts in the library there are timeouts of 100 millis if you have a larger time out like delay(120) you receive no data at all.

Furthermore the Library you are pointing to is related to using Serial2 look at my solution at github Serial1 or Serial2 in external library reference

This will solve your problem.

Upvotes: 0

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