Integration with Home Assistant

Getting back to this with all the Home Assistant updates and saw that BTHome now has button events. Works lovely

var SWBtn = require("https://raw.githubusercontent.c­om/muet/EspruinoDocs/master/modules/SWBu­tton.js");
var buttonState = 0;
var btnData = {};
var idleTimeout;
if (!Puck.bleAdvert) Puck.bleAdvert = {};

// these get created with a puck button press
var mySWBtn = new SWBtn(function(k){
  if (k === "S"  ) { // single button press
    buttonState = !buttonState;
    btnData.state = buttonState;
    btnData.btn = 0x01;
    btnData.press = + 0; 
  }
  else if (k === "L" ) { // long button press
    btnData.press = 1; 
    btnData.btn = 0x04;
  }
  else if (k === "SS") { // double short press
    btnData.press = 2; 
    btnData.btn = 0x02;
  }
  updateBTHome(btnData);
});

function initBTHome() {
  tempF = [(E.getTemperature()*9/5)+32];
  Puck.bleAdvert[0xFCD2] = [ 0x40, /* BTHome Device Information
              bit 0: "Encryption flag"
              bit 1-4: "Reserved for future use"
              bit 5-7: "BTHome Version" */

              0x01, // Battery, 8 bit
              E.getBattery(),

              0x02, // Temperature, 16 bit
              tempF&255,tempF>>8,                            

              0x3A, // button event none
              0x00,
  ];
  NRF.setAdvertising(Puck.bleAdvert);
}

setInterval(function() {
  initBTHome();
//}, 1*60*1000); // 1 min
}, 10000); // 10 sec

function updateBTHome(btnData) {  
  Puck.bleAdvert[0xFCD2] = [ 0x40, /* BTHome Device Information
              bit 0: "Encryption flag"
              bit 1-4: "Reserved for future use"
              bit 5-7: "BTHome Version" */

              0x09, // count1 button press, 1 bit
              btnData.press,

              0x0F, // binary button state, uint8 (1 byte)
              btnData.state,

              0x3A, // button event
              btnData.btn,
                            
                            
  ];
  NRF.setAdvertising(Puck.bleAdvert);

  if (idleTimeout) clearTimeout(idleTimeout);
  idleTimeout = setTimeout(function() {
    idleTimeout = undefined;
    Puck.bleAdvert[0xFCD2][2] = 0;
    NRF.setAdvertising(Puck.bleAdvert);
  },2500);

}