Gordon

Most recent activity

• Espruino on your watch!

  @Gordon started

  • 235 comments
  • 36,455 views

  @fanoush replied
• Write up your project and get a Free Espruino!

  @Gordon started

  • 14 comments
  • 3,274 views

  @Robin replied
• Doubling bitmap font size (big fonts)

  @Gordon started

  • 7 comments
  • 667 views

  @MaBe replied
• Question with simultaneous Web Servers and AP's.

  in General • 6 days, 18 hours

  

  I don't see that you'll have a big problem.. You can...

  • Start up AP
    
  • Start the Web Server
    
  • User enters details
    
  • Feedback to user
    
  • Close Server, start connection
    
  • User's browser polls server to see if it's back yet
    
  • connection succeeds(or fails) and server is restarted
    
    

  So I think what you're after shouldn't be a big problem...

• Got a Clue but haven't got a clue

  in Porting to new Devices • 6 days, 21 hours

  

  Not sure what to suggest, but if they're not using the Nordic bootloader then you could try commenting out the bootloader:1 line in the BOARD.py file? That'll ensure that there's no bootloader built into the image, which may help.

• Question with simultaneous Web Servers and AP's.

  in General • 6 days, 21 hours

  

  I think what you're after is fine to do (it sounds like a great idea), but there might be a minor issue:

  You can only have one web server on Espruino WiFi, although I believe that web server can be accessible from both networks. Because of that, you may need to ensure that you create the Web Server after you've initialised both network interfaces?

  If you're changing configuration (eg to connect to the second interface) I'd close the first server, connect to the AP, and then re-open it...

• Bangle.js screen contrast

  @Gordon started

  • 1 comment
  • 0 views

  @Gordon replied
• Bangle.js screen contrast

  in Bangle.js • 6 days, 21 hours

  

  Hi! I've noticed that (I think) the Bangle Beta devices must have a slightly different LCD than my development device, and the Gamma/contrast is way off.

  Try:

  for (var i=0;i<240;i+=2) {
    var c = i/240;
    g.setColor(c,c,c);
    g.fillRect(i,0,i+1,239);
  }
  

  You'd hope it was a smooth gradient, but it's probably not. I did some hacking around and got:

  function setGamma(gamma) {
    Bangle.lcdWr(0xe0,gamma); // PVGAMCTRL
    Bangle.lcdWr(0xe1,gamma); // NVGAMCTRL
  }
  
  Bangle.setLCDPower(1);
  Bangle.setLCDTimeout(0);
  
  // index 1 onwards changes the lighter end of gamma
  // last array elements change the darker end of gamma
  setGamma([0x70,0x1f,0x20,0x15,0x10,0x09,­0x48,0x33,0x53,0x0B,0x19,0x15,0x2a,0x2f]­);
  

  But if anyone feels like poking around and trying to get it better, feel free!

  Issue here: https://github.com/espruino/Espruino/iss­ues/1758

  Screen datasheet here: https://www.newhavendisplay.com/appnotes­/datasheets/LCDs/ST7789V.pdf

  It's the PVGAMCTRL register than needs tweaking, but there's very little info on what the values mean!

• Write commands from react native application

  in Puck.js, Pixl.js and MDBT42 • 6 days, 21 hours

  

  You could try manually disabling bluetooth on the device and re-enabling it. I know iOS (and newer Android?) actually cache the Bluetooth services for devices so if you connected to the device previously then the phone might be giving you old info on services?

• Bangle.js Beta Feedback

  @Gordon started

  • 34 comments
  • 851 views

  @Gordon replied