MaBe

Most recent activity

• SSL requests failing

  in ESP8266 • 1 month, 2 weeks

  

  The ESP8266 is so limited that it's definitly not possible. ESP32 can do after deactivate of BLE or if you use a board with PSRAM

• Fast LED light pattern generation help

  in Projects • 1 month, 4 weeks

  

  Cool - To speed things up you can add "compiled"; to your random value generator function like explained here JavaScript Compilation

• esp8266 gpio extension

  in ESP8266 • 2 months, 1 week

  

  There is no module for this ic available.

  Check this page for existing modules:

  http://www.espruino.com/Modules

  There are also some gpio extender available which you could use as a good starting point to build a SX1509 module.

• analogRead() and PuckJS

  @MaBe started

  • 6 comments
  • 404 views

  @Gordon replied
• analogRead() and PuckJS

  in JavaScript • 4 months

  

  first test with the NRF52LL module

  var ll = require("NRF52LL");
  
  var saadc = ll.saadc({
    channels : [ { // channel 0
      pin:D4,
      gain:1/4,
      tacq:40,
      refvdd:true,
    } ]
  });
  
  setInterval(()=>{print(saadc.sample());}­,1E3);
  
  /* output
  [ 4 ]
  [ 12 ]
  [ 65528 ]
  [ 8 ]
  [ 4 ]
  [ 65524 ]
  [ 40 ]
  [ 0 ]
  [ 12 ]
  [ 12 ]
  [ 20 ]
  [ 16 ]
  [ 8 ]
  */
  

  Is the result a 16 bit signed integer and presenting a -32767 to +32767 digital value ?

• Is it planed to have Spread syntax (...) ? No, use arguments instead

  @MaBe started

  • 7 comments
  • 962 views

  @Gordon replied
• analogRead() and PuckJS

  in JavaScript • 4 months, 1 week

  

  Does switching of NRF improve reads?

  Should NRF.sleep() be called if accurate analogRead() are required?

  You can also configure the nRF52 hardware to just take readings automatically which is probably the fastest

  Ok, have to look into that module

• analogRead() and PuckJS

  in JavaScript • 4 months, 1 week

  

  Is analogRead(pin) the quickest way and how accurate is this?

  Does switching of NRF improve reads?

• Flashing a 1MB ESP-01

  in ESP8266 • 6 months

  

  There is info in the make file for a 1MB ESP8266 board

  https://github.com/espruino/Espruino/blo­b/2e0502cbb721c72fcae6807ac85edd9900b60a­40/make/targets/ESP8266.make#L32

• fs.writeFile() and fs.readFile() not working properly in ESP32

  in ESP32 • 6 months, 1 week

  

  Hmm, my guess it that you overload the ESP8266. The ESP32 has much more memory and should handle it. Well fs is very memory hungry.