mco

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• ESP32 - Data Event on Serial2 only one event

  in ESP32 • 5 years, 9 months

  

  The problem persists.Here is a simpler example with my console return. We notice that the event on the serial reception does not work anymore after a writing.

  Code Esp32 - Esrpuino

  Serial2.setup(9600, {rx:D16,tx:D17});
  
  Serial2.on('data', function(data) {
    console.log("<SERIAL> "+data.toString());
    Serial2.write("Hello from Esp32\n");
  });
  

  Console

  TEST_1
  SEND:TEST_1
  RECV:Hello from Esp32
  TEST_2
  SEND:TEST_2
  TEST_3
  SEND:TEST_3
  
  

  Can you help me ?

• ESP32 - Data Event on Serial2 only one event

  @mco started

  • 2 comments
  • 2,024 views

  @mco replied
• ESP32 - Data Event on Serial2 only one event

  in ESP32 • 5 years, 9 months

  

  Hello guys !
  I'm new on this forum and beginner in using Espruino. I have some troubles with serial comminication. I'm trying to create a bridge between a TCP and Serial, on the Esp32 board (ESP-WROOM-32).

  let net = require('net');
  let port = 11000;
  
  Serial2.setup(9600, {
      rx: D16,
      tx: D17
  });
  
  // Create NET server
  let server = net.createServer(function (socket) {
  
      socket.on('data', function (datas) {
          console.log("TCP RECEIVED:" + datas.toString());
         // Send datas from TCP over Serial
          Serial2.println(datas.toString());
          console.log("SERIAL SEND :" + datas.toString());
      });
  
      Serial2.on('data', function (str) {
          console.log("SERIAL RECEIVED:" + str.toString());
          socket.write(str.toString());
      });
  });
  
  server.listen(port);
  

  The problem is when the function "Serial2.write(...)" is called, there is no longer a receiving event on "Serial2.on('data',..." when I send data to the serial.

  Before the calling, it works perfertly, but after there is no more event.

  Is there a function for data events after a write? Or do you have the same problem on your Esp32 with Espruino?

  Excuse me for my english, it's not my first language :)

  Hope you can help me