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• [SOLVED] Flashing WeMos D1 Mini Pro (16MB) with Espruino

  @user85573 started

  • 19 comments
  • 8,099 views

  @AndrewWakeling replied
• [SOLVED] Flashing strange WeMos D1 Esp-Wroom-02 motherboard (battery controller, 0.96" OLED, cp210x serial)

  @user85573 started

  • 9 comments
  • 10,469 views

  @CMSpooner replied
• [SOLVED] Flashing strange WeMos D1 Esp-Wroom-02 motherboard (battery controller, 0.96" OLED, cp210x serial)

  in ESP8266 • 6 years, 2 months

  

  Not sure how to read from the buttons, I've not attempted that yet. I've included the button functions on the 5-way joystick below just as reference.

  Description:

  Color:Black
  Charging Protection:Yes
  Discharge Protection:Yes
  Compatible With Arduino
  Compatible With NodeMCU
  Wide Voltage Input Range: 5V~12V
  Charge Current:500 mA
  Size(L*W*H):102 x 30 x 20 mm
  Display Size: 0.96 Inch

  Features:

  1.One AD inputs.
  2.Micro USB inputs.
  3.One programmable LED (D0).
  4.Integrated 18650 battery charging and discharging system.
  5.One switch controls whether the 18650 battery is powered or not.
  6.OLED's SDA and SCL connect to the D1 pin and the D2 pin respectively.
  7.The five buttons are controlled by FLASH, RESET, D5, D6, and D7 respectively.
  8.The 5 Digital pins can configure the write/read/interrupt/pwm/I2C/one-wire supported separately.
  9.Operation and NodeMCU consistent, adding a programmable LED, you can use GPIO16 to control, display 8266 running status and other functions. Integrated OLED and five button, more convenient for development.
  10.The design concept originates from the open source project NodeMCU, and the development board integrates 18650 charging and discharging systems with charging and discharging protection. At the same time, a OLED and five directional buttons are integrated to facilitate the development.

  Notes:

  1. Manual measuring, please allow 1 ~ 5 mm error,thank you.
     
  2. This product does not contain 18650 batteries.If the battery is in the wrong direction, the charging chip will be destroyed.
     
  3. Please do not burn the program during charging. When you burn the program, please unplug the battery and verify the switch is in ON position.
     
  4. Recommend the use of 5V 500mA charging charger, more than 5V 1A there will be fever, does not affect the normal work, but in the process of charging charging chip do not touch or carry, the measured charge charging will rise to about 60 degrees with the diode chip, no heat during normal working hours, rest assured to carry.
     
• [SOLVED] Flashing strange WeMos D1 Esp-Wroom-02 motherboard (battery controller, 0.96" OLED, cp210x serial)

  in ESP8266 • 6 years, 3 months

  

  Nevermind, works fine. I was attempting to use the SSD1306 I2C on D1 and D2, needs to be NodeMCU.D1 and NodeMCU.D2 (sda & scl) respectively, and the other ones seem to be the serial RX/TX pins, causing nonsense on the terminal.

  ./esptool.py --chip esp8266 --port /dev/ttyUSB0 write_flash -ff 20m -fm dio --flash_size 4MB-c1 0x0 espruino_1v95_esp8266_4mb_combined_4096.­bin
  

• [SOLVED] Flashing WeMos D1 Mini Pro (16MB) with Espruino

  in ESP8266 • 6 years, 3 months

  

  Yes, the summary is accurate. That code doesn't work for me, even with tweaking. I'll need more time.

• [SOLVED] Flashing strange WeMos D1 Esp-Wroom-02 motherboard (battery controller, 0.96" OLED, cp210x serial)

  in ESP8266 • 6 years, 3 months

  

  I've been collecting strange ESP8266 boards, and got my hands on 2 of these:
  

  https://www.aliexpress.com/item/1pc-ESP8­266-Development-Board-WeMos-D1-Esp-Wroom­-02-Motherboard-0-96-Screen-Module-18650­-Battery/32833311570.html

  Flashing 4MB combined with --flash_size 4MB and 4MB-c1 works fine, the thing reboots, but I can never get an Espruino prompt at this point, 115200 baud or 9600.

  Manufacturer: c8
  Device: 4016
  Detected flash size: 4MB
  

  Anyone have one of these and successfully flashed?

• [SOLVED] Flashing WeMos D1 Mini Pro (16MB) with Espruino

  in ESP8266 • 6 years, 3 months

  

  It does not...I've just been including Wifi in onInit().

• WS2812B LED strip and ESP8266 shows wrong colors

  in ESP8266 • 6 years, 3 months

  

  v1(a)
  0.030798
  0.030268
  0.030341
  0.03037
  0.030436
  0.030451
  0.030515
  0.030617
  0.03060900000
  0.030679
  0.03064899999
  0.030679
  0.03073700000
  0.030856
  0.030821
  0.030756
  0.030841
  0.030878
  0.03080600000
  0.03079500000
  0.03083700000
  0.030755
  0.030751
  0.030744
  0.03070499999
  0.030687

  v2(a)
  0.023461
  0.02335299999
  0.02293
  0.02335500000
  0.02342099999
  0.02307199999
  0.023368
  0.02320199999
  0.02309100000
  0.02331900000
  0.02320100000
  0.02319399999
  0.02319899999
  0.02302300000
  0.02329700000
  0.023054
  0.022922
  0.023505
  0.02313600000
  0.02292699999
  0.023507
  0.02306500000
  0.02308200000
  0.02353299999

  v2(b)
  0.03001599999
  0.030012
  0.03011499999
  0.03015499999
  0.03018
  0.03026499999
  0.03029300000
  0.03027200000
  0.030347
  0.03035300000
  0.03045099999
  0.030484
  0.03047499999
  0.03058799999
  0.03059
  0.03054
  0.03057
  0.030644
  0.03053399999
  0.03054
  0.030553
  0.030486

  v2(c)
  0.02292799999
  0.02256799999
  0.02212799999
  0.02253500000
  0.02267299999
  0.02225899999
  0.02259800000
  0.02252500000
  0.02243099999
  0.02248499999
  0.02235399999
  0.02252299999
  0.02236899999
  0.02222599999
  0.02252699999
  0.02229300000
  0.02217800000
  0.02258200000

  v2 variants needed some remediation on var t0, along with parens

  // V2b - flash an 8 LED neopixel array in a rainbow pattern
  var neo = require("neopixel");
  var led_count = 8;
  var neoPin = NodeMCU.D4;
  var rgb = new Uint8ClampedArray(led_count * 3);
  var len = rgb.length;
  var m = 127;
  var r = 0.1324*m;
  var g = 0.1654*m;
  var b = 0.1*m;
  var pos = 0;
  var t0;
  function getPattern() {
    pos++;
    for (var i=0; i<len;) {
      rgb[i++] = m + Math.sin((i+pos)*r);
      rgb[i++] = m + Math.sin((i+pos)*g);
      rgb[i++] = m + Math.sin((i+pos)*b);
    }
    console.log(getTime() - t0);
    return rgb;
  }
  function bow() {
    t0 = getTime();
    neo.write(neoPin, getPattern());
  }
  function onInit() {
    setInterval(bow,200); // may need to change to allow console to write
  }
  setTimeout(onInit, 1000);
  

• [SOLVED] Flashing WeMos D1 Mini Pro (16MB) with Espruino

  in ESP8266 • 6 years, 3 months

  

  Sure enough, with the 512/512 map, wifi.save() makes the device unbootable, spewing guts out on serial. Use 4MB-c1, even with the combined image.

• WS2812B LED strip and ESP8266 shows wrong colors

  in ESP8266 • 6 years, 3 months

  

  Just FYI in the new 1v95, the neopixel module is not part of esp8266, usage is like any other Espruino platform:

  // flash an 8 LED neopixel array in a rainbow pattern
  var led_count = 8;
  var neoPin = NodeMCU.D4;
  
  var rgb = new Uint8ClampedArray(led_count * 3);
  var pos = 0;
  
  function getPattern() {
    pos++;
    for (var i=0;i<rgb.length;) {
      rgb[i++] = (1 + Math.sin((i+pos)*0.1324)) * 127;
      rgb[i++] = (1 + Math.sin((i+pos)*0.1654)) * 127;
      rgb[i++] = (1 + Math.sin((i+pos)*0.1)) * 127;
    }
    return rgb;
  }
  setInterval(function() {
    require("neopixel").write(neoPin, getPattern());
  }, 100);