Issue with uart read

#1
  1. My goal is: read and print data form uart2
  2. My actions are: I am using example code uart-js
load('api_timer.js');
load('api_uart.js');
load('api_sys.js');


let uartNo = 2;   // Uart number used for this example
let rxAcc = '';   // Accumulated Rx data, will be echoed back to Tx
let value = false;

// Configure UART at 115200 baud
UART.setConfig(uartNo, {
  baudRate: 100,
  rxLingerMicros: 200,
  esp32: {
    gpio: {
      rx: 16,
      tx: 17,
    },
  },
});

// Set dispatcher callback, it will be called whenver new Rx data or space in
// the Tx buffer becomes available
UART.setDispatcher(uartNo, function(uartNo) {
  let ra = UART.readAvail(uartNo);
  if (ra > 0) {
    // Received new data: print it immediately to the console, and also
    // accumulate in the "rxAcc" variable which will be echoed back to UART later
    let data = UART.read(uartNo);
    print('Received UART data:', data);
    rxAcc += data;
  }
}, null);

// Enable Rx
UART.setRxEnabled(uartNo, true);
  1. The result I see is: I get rubbish like:
[Oct 23 16:55:51.729] Received UART data: \x80(\x00\x00\x00 
[Oct 23 16:55:52.739] Received UART data: \x00\x1e!\x00\x00\x00\x00\xde 
[Oct 23 16:55:53.748] Received UART data: \x80( 
[Oct 23 16:55:54.749] Received UART data: \x00\x00\x00\x00\x1e!\x00\x00\x00\x00 
[Oct 23 16:55:55.554] Received UART data: \xde 
[Oct 23 16:55:56.559] Received UART data: \x80(\x00\x00\x00\x00\x1e 
[Oct 23 16:55:57.568] Received UART data: !\x00\x00\x00\x00\xde 
[Oct 23 16:55:58.578] Received UART data: \x80(\x00\x00 
[Oct 23 16:55:59.579] Received UART data: \x00\x00\x1e!\x00\x00\x00\x00\xde 
[Oct 23 16:56:00.588] Received UART data: \x80 
[Oct 23 16:56:01.589] Received UART data: (\x00\x00\x00\x00\x1e!\x00\x00\x00
  1. My expectation & question is: I am sending to ESP32 13 bytes like 80,40,0,0,0,0,28,27,0,0,0,0,123 from another ESP and I get 9, 8, 3 bytes of data like above. It looks the same in mjs and c. When I use Arduino or ESP-IDF the result is as I excepted, nice 13 bytes of data.
#2

This is a real issue. Anyone can help?