Serial Port not working in custom Edge Driver on Tulip player

Developer
, ,
1

Dear Tulip Community,

This is my first time posting, so excuse me if I did something wrong. I am trying to connect an ESP32 with the Tulip player with a custom edge driver and send/read commands from the serial port. I am following this walkthrough SDK develop

When I tried to connect to the ESP via serial, I get the following issues. The driver itself registers and works fine as seen in the first lines in the console but fails to connect to the serial port.

I checked if the ESP’s serial port is not blocked, but it is open and I can send and receive commands from the terminal, so there is no issues on that side.

Any help is appreciated :slight_smile:

I use the following code in the driver:

 const serial = new edgeDriverSdk.SerialPort('COM6', { baudRate: 115200 });

serial.onData((data) => {
  try {
    const decoder = new TextDecoder();
    const stringData = decoder.decode(new Uint8Array(data));
    const espData = JSON.parse(stringData.split('ESP: ')[1]);
    edgeDriverSdk.fireEvent('status', espData);
  } catch (error) {
    console.error(error);
  }
});

serial.open().then(() => console.log('COM6 opened'))
    .catch((e) => console.error('Failed to open COM6:', e));

edgeDriverSdk.registerDriverFunction('led_on', async () => {
  await serial.send(JSON.stringify({ command: 'led_on' }) + '\n');
});

edgeDriverSdk.registerDriverFunction('led_off', async () => {
  await serial.send(JSON.stringify({ command: 'led_off' }) + '\n');
});

tulip issue
tulip issue1222×902 34.2 KB

2

Additional errors from the console when I try to list the available ports

edgeDriverSdk.SerialPort.listAvailablePorts().then((ports) => {
  const esp32port = ports.find((port) => (port as any).productId === 29987);
  serial = new edgeDriverSdk.SerialPort(esp32port.path, {
    baudRate: 115200,
  });

image
image460×206 6.7 KB