Puck.js and SIM 800L module unable to initialize after cutting and restoring power

Hi! For SMS, can you try:

var sms;

function onInit() {
Bluetooth.setConsole(1);
Serial1.setup(115200, { rx: D1, tx : D2 });
var ATSMS = require("ATSMS");
sms = new ATSMS(Serial1);

sms.init(function(err) {
  if (err) throw err;
  console.log("Initialised!");

  sms.list("ALL", function(err,list) {
    if (err) throw err;
    if (list.length)
      console.log(list);
    else
      console.log("No Messages");
  });

  // and to send a message:
  //sms.send('+441234567890','Hello world!', callback)
});

sms.on('message', function(msgIndex) {
  console.log("Got message #",msgIndex);
  sms.get(msgIndex, function(err, msg) {
    if (err) throw err;
    print("Read message", msg);
    var txt = msg.text.toLowerCase();
    if (txt=="on") LED1.set();
    if (txt=="off") LED1.reset();
    // delete all messages to stop us overflowing
    sms.delete("ALL");
  });
});
}

onInit();

It's a minor tweak but it seems you had sms.on('message' being called while sms was still undefined, and I imagine that would have caused an error.

Using save on send with the code as provided from the 'Control Bluetooth Lights with SMS' tutorial should have worked fine though.

With the PIR, did you ensure that GND was properly shared between all devices? That's usually the biggest cause of this kind of problem - that to send a signal you actually need two wires (GND and signal), not just the signal wire on its own.

And for the 2v00 upgrade, did you try long-pressing the button when you apply power? http://www.espruino.com/Puck.js#resetting-puck-js That would clear out any old saved code that might potentially have caused problems when you upgraded