Puck.js Connect to Adafruit Feather Board

Ok, I think I am getting closer. I'm just really trying to navigate how the two different libraries (Arduino and Espruino) talk to each other.

I have the following code on the puck.js. I can see and connect to the Arduino Adafruit Feather board with the puck on a button push.

// Initialize the UART connection on Puck.js
Serial1.setup(9600, { tx: D29, rx: D28 });

// Function to send a message
function sendMessage(message) {
  NRF.connect("ff:8d:05:ae:17:64 random").then(function(d)   {
    device = d;
    console.log("Device ",device);
    Serial1.print(message);
  });
}

// Send a message when the button is pressed
setWatch(function() {
  sendMessage("Hello, Arduino!");
}, BTN, { edge: "rising", debounce: 50, repeat: true });

The code on the Arduino Feather is below. In the Serial output, when I click the puck button it shows the Device Connected in the output - but I can not for some reason get the UART message to be passed between the puck and the Arduino board. I'm sure it's something simple I'm missing - so sorry if this is an easy one.

[#include](https://forum.espruino.com/search/?q=%23include) <Arduino.h>
[#include](https://forum.espruino.com/search/?q=%23include) <SPI.h>
[#include](https://forum.espruino.com/search/?q=%23include) "Adafruit_BLE.h"
[#include](https://forum.espruino.com/search/?q=%23include) "Adafruit_BluefruitLE_SPI.h"
[#include](https://forum.espruino.com/search/?q=%23include) "Adafruit_BluefruitLE_UART.h"

[#include](https://forum.espruino.com/search/?q=%23include) "BluefruitConfig.h"

[#if](https://forum.espruino.com/search/?q=%23if) SOFTWARE_SERIAL_AVAILABLE
  [#include](https://forum.espruino.com/search/?q=%23include) <SoftwareSerial.h>
[#endif](https://forum.espruino.com/search/?q=%23endif)

    [#define](https://forum.espruino.com/search/?q=%23define) FACTORYRESET_ENABLE         1
    [#define](https://forum.espruino.com/search/?q=%23define) MINIMUM_FIRMWARE_VERSION    "0.6.6"
    [#define](https://forum.espruino.com/search/?q=%23define) MODE_LED_BEHAVIOUR          "MODE"
    [#define](https://forum.espruino.com/search/?q=%23define) LED_BUILTIN                 13
/*=========================================================================

Adafruit_BluefruitLE_UART ble(bluefruitSS, BLUEFRUIT_UART_MODE_PIN,
                      BLUEFRUIT_UART_CTS_PIN, BLUEFRUIT_UART_RTS_PIN);

// A small helper
void error(const __FlashStringHelper*err) {
  Serial.println(err);
  while (1);
}

/**************************************************************************/
/*!
    @brief  Sets up the HW an the BLE module (this function is called
            automatically on startup)
*/
/**************************************************************************/

void setup() {
  // Start the hardware serial communication at 9600 baud rate
  Serial.begin(9600); // Serial Monitor
  Serial1.begin(9600); // UART Communication (Replace Serial1 with appropriate Serial for your Feather)

  Serial.println(F("Adafruit Bluefruit Command Mode Example"));
    Serial.println(F("---------------------------------------"));

    /* Initialise the module */
    Serial.print(F("Initialising the Bluefruit LE module: "));

    if ( !ble.begin(VERBOSE_MODE) ){
      error(F("Couldn't find Bluefruit, make sure it's in CoMmanD mode & check wiring?"));
    }
    Serial.println( F("OK!") );

    if ( FACTORYRESET_ENABLE ){
      /* Perform a factory reset to make sure everything is in a known state */
      Serial.println(F("Performing a factory reset: "));
      if ( ! ble.factoryReset() ){
        error(F("Couldn't factory reset"));
      }
    }

    /* Disable command echo from Bluefruit */
    ble.echo(false);

    Serial.println("Requesting Bluefruit info:");
    /* Print Bluefruit information */
    ble.info();

    Serial.println(F("Please use Adafruit Bluefruit LE app to connect in UART mode"));
    Serial.println(F("Then Enter characters to send to Bluefruit"));
    Serial.println();

    ble.verbose(false);  // debug info is a little annoying after this point!

    /* Wait for connection */
    while (! ble.isConnected()) {
        delay(500);
    }

    while(ble.isConnected()){
      Serial.println(F("Device is connected."));
      delay(500);
    }
    pinMode(LED_BUILTIN, OUTPUT); // Optional: Use the built-in LED to indicate received data
}

void loop() {
  // Check if there is any data available on Serial1
  if (Serial.available()) {
    // Read the incoming byte
    String incomingMessage = "";
    while (Serial.available()) {
      char incomingByte = Serial.read();
      incomingMessage += incomingByte;
    }
    // Print the incoming message to the Serial Monitor
    Serial.println("Received: " + incomingMessage);

    // Optional: Blink LED to indicate message received
    digitalWrite(LED_BUILTIN, HIGH);
    delay(1000);
    digitalWrite(LED_BUILTIN, LOW);
  }
}