Gordon

Most recent activity

• Simple Beacon for Android SmartLock workaround.

  in Puck.js, Pixl.js and MDBT42 • 1 hour, 31 minutes

  

  Hi!

  Yes, I think either device would be fine for that. I'll have a quick check tomorrow to be absolutely sure though.

  By the look of it you may have to pair with the device first before it'll appear in the Smart Lock list, which may mean you have to turn it into something like a media control (play/stop/pause button) - but even so that's just a few lines of code.

  The act of just broadcasting its existence shouldn't be anything that draws a bunch of power so a Puck would work fine for you for around a year's battery life.

  So... you may be able to just power on the device and make it work as you say, it may require some tweaking. However I'd seriously recommend uploading some code to the device (http://www.espruino.com/Puck.js+Security­) because potentially as it comes out of the box somebody in range in a different flat could just reprogram it to do something else :)

  I'll find out for sure tomorrow though

• Puck, HID modules and iOS

  in Puck.js, Pixl.js and MDBT42 • 3 hours, 27 minutes

  

  Ahh - yes, it was a 1.94.something build in the video I think... But still, new ones will likely be a good deal more reliable :)

• NFC Reader for FreeStyle Libre with BM019 - Unofficial board?

  in Puck.js, Pixl.js and MDBT42 • 3 hours, 30 minutes

  

  I really think compiled is a bad idea here - execution speed really will not be your issue at all.

  Specifying SS_PIN for spi.send will automatically set it low and then high after, so you shouldn't need the d(SS_PIN, LOW); anyway.

  Please could you try just:

  function echo(){
      var r=spi.send(0x55,SS_PIN);
     print("echo response:",r);
  }
  

  Do you have SS_0 pulled high? It seems that if it wasn't the chip might go into UART mode which might cause some pretty strange behaviour.

  HOWEVER looking at http://www.solutions-cubed.com/content/D­ownloads/Breakout%20Modules/DATASHEET_BM­019.pdf I don't think just sending 0x55 should work anyway...

  That's the command, but it looks like commands need to be wrapped up - see page 20 of that document. For example their Arduino code does:

   digitalWrite(SSPin, LOW);
   SPI.transfer(0x00); // SPI control byte to send command to CR95HF
   SPI.transfer(0x04); // Send Receive CR95HF command
   SPI.transfer(0x03); // length of data that follows is 0
   SPI.transfer(0x26); // request Flags byte
   SPI.transfer(0x01); // Inventory Command for ISO/IEC 15693
   SPI.transfer(0x00); // mask length for inventory command
   digitalWrite(SSPin, HIGH);
  

  In fact it's kind of obvious that just sending 0x55 wouldn't return the right response because data on SPI is clocked in as it is clocked out... So the data you're receiving is being sent by the device even before it has received the command.

  You could try this - which is just the Arduino code that's been hastily converted to Espruino. It might work - if called after your initial setup stuff?

  function Inventory_Command() {
   var i = 0;
  // step 1 send the command
   spi.write([0x00, // SPI control byte to send command to CR95HF
    0x04, // Send Receive CR95HF command
    0x03, // length of data that follows is 0
    0x26, // request Flags byte
    0x01, // Inventory Command for ISO/IEC 15693
    0x00], SS_PIN); // mask length for inventory command
   
   // ignoring delay(1); 
  
  // step 2, poll for data ready
  // data is ready when a read byte
  // has bit 3 set (ex: B'0000 1000')
   digitalWrite(SS_PIN, 0);
   // Write 3 until bit 3 is set
   while ((spi.send(0x03) & 0x08) != 8);
   digitalWrite(SS_PIN, 1);
   // ignoring delay(1); 
  // step 3, read the data
   digitalWrite(SS_PIN, LOW);
   var rx = spi.send([0x02,0,0]); // SPI control byte for read
   var data = spi.send(new Uint8Array(rx[2]));
   digitalWrite(SS_PIN, HIGH);
   
   console.log("Got data", data);
  }
  

• Puck, HID modules and iOS

  in Puck.js, Pixl.js and MDBT42 • 4 hours

  

  Try upgrading the firmware? 1v96 is quite old now.

  Tried just now with 2v01 and:

  var controls = require("ble_hid_controls");
  NRF.setServices(undefined, { hid : controls.report });
  
  setWatch(function() {
    // Play/stop music
    controls.playpause();
  }, BTN, {repeat:true});
  

  and it works great playing/pausing videos on an iPad mini.

  I paste the code, connect to Puck, upload it, disconnect, then attempt to connect from my iPhone.

  This is exactly what I did, but do get the pairing message on mine.

  It might be worth powering the Puck up with a long-press of the button, as that will clear any pairing info out of it - just in case that was some kind of problem.

  Also, I should add that if I'm on the Bluetooth settings screen on the iPad then I do see it when doing NRF.findDevices(print) (reporting "manufacturer": 76,, which is 0x004c - apple's ID.

• NFC Reader for FreeStyle Libre with BM019 - Unofficial board?

  in Puck.js, Pixl.js and MDBT42 • 8 hours, 55 minutes

  

  ok - SPI should be pretty straightforward I hope, and from what I can see all the example code for the BM019 uses SPI too.

• NFC Reader for FreeStyle Libre with BM019 - Unofficial board?

  in Puck.js, Pixl.js and MDBT42 • 11 hours, 3 minutes

  

  Thanks - I think it'd help to see your code.

  Sometimes if people are used to Arduino they'll write code like while (Serial1.available()==0); - but that doesn't play well with Espruino and could cause issues if you were trying to do something like that? The best thing is to respond to data in the Serial1.on('data',...) handler.

• RegEx not matching node.js output

  in ESP32 • 11 hours, 5 minutes

  

  Ok, in that case I'd suggest:

  /filename="([^"]+)"/g.exec("form-data; name=\"file\"; filename=\"file.txt\"")[1]

  Which matches filename="..." and returns what's inside the quotes

• Using adafruit hardware via seesaw

  in Espruino Work • 11 hours, 8 minutes

  

  There is the What is this? sticky post as the very first post on this forum that tries to explain what this forum is for.

• Originial Espruino and GPS Module

  in Pico / Wifi / Original Espruino • 11 hours, 45 minutes

  

  Yep, I believe it'll just return NaN until it's got enough Satellites in range to give you a proper reading. You can check with isNaN(fix.lat)

• patreon sign did not appear under the avatar

  in The Place for Patreon Patrons • 1 day, 4 hours

  

  Thanks! I'll get that updated - I actually had your forum details because you've been a member since 2015 - I just needed to update the list from Patreon.