NodeMCU BT Wrist Hand Flame Flash IDK


Similar projects worth following


There is nothing up my sleeve .. save for this giant WIFI and Bluetooth enabled flash paper igniter.

With a sleight of hand .. a touch of the screen .. and poof.

No one is paying attention any ways bcz they are looking at their phones too.



1. Prototype .. read the room.

2. NodeMCU (wifi) + HC-05 (not BLE) + TIP120 (relays) shd be a maker board. "VijeCU"?

3. Bcz the glow plugs are simply resistance wire coils, they are driving current and grounding the circuit. Thus, per this particular purpose, we must use relays .. which is a s/o/b after having had confidence in the transistor model.

4. WTH happen to those Radio Shack drawer 'mini' 5V relays?!

5. Isolate.

6. "Fallen Hero" by Emily M. Klassen


Standard Tesselated Geometry - 114.58 kB - 01/29/2019 at 20:16


SSEYO Koan Play File - 572.34 kB - 01/29/2019 at 20:15


  • 3 × Glow Plug
  • 1 × NodeMCU 12E
  • 3 × AA
  • 1 × HC-05 BT Module
  • 1 × Flash Paper

View all 7 components

  • NodeMCU Snagglebluetooth Only Versio

    Vije Miller02/02/2019 at 22:02 0 comments

    // Magic Flame Hand Thing
    // Bluetooth Only Version
    // Vije Miller
    // Pins
    int one = D0;
    int two = D1;
    int thr = D2;
    // Burn Time
    int burn = 2500;
    int mix_burn = 2000;
    void setup() {
      pinMode(one, OUTPUT);
      pinMode(two, OUTPUT);
      pinMode(thr, OUTPUT);
      digitalWrite(one, LOW);
      digitalWrite(two, LOW);
      digitalWrite(thr, LOW);
    void loop() {
      if (Serial.available())
        char data;
        data =;
        if (data == '1') {
          digitalWrite(one, HIGH);
          digitalWrite(one, LOW);
        else if (data == '2') {
          digitalWrite(two, HIGH);
          digitalWrite(two, LOW);
        else if (data == '3') {
          digitalWrite(thr, HIGH);
          digitalWrite(thr, LOW);
        else if (data == '4') {
          digitalWrite(one, HIGH);
          Serial.write("Bomb's Away");
          digitalWrite(two, HIGH);
          digitalWrite(one, LOW);
          digitalWrite(thr, HIGH);
          digitalWrite(two, LOW);
          digitalWrite(thr, LOW);

  • Stouty Wristuals

    Vije Miller02/02/2019 at 05:38 0 comments

  • Not Enough OJ

    Vije Miller01/31/2019 at 23:43 0 comments

    Lesson in futility ... and a reminder why I hate fancy products.

    Needs perhaps just 1 more battery .. to which then I no longer care .. having reached my official project-tolerance-epoch.

    Those with patience, money and steady soldering hands are welcome to venture onward.

  • Ugh

    Vije Miller01/30/2019 at 00:56 0 comments

    After a complete tear down of the TIP120s from the board believing they were wired wrong -- they were not -- and after some wild testing -- it appears that the glow plugs being a mere resistance, are grounding the entire circuit.

    Now .. permitting that I am not wise in the ways of electrical engineering .. this will require all my internet-ing slash begging for assistance skills.

    Following this .. will more than likely transition to 2N2222 NPNs for the switch bcz they are easier to manage on the scale of the project.

  • Proto-tpynig

    Vije Miller01/29/2019 at 20:15 0 comments

  • NodeMCU + BT + (3) TIP120 Shd be a thing ...

    Vije Miller01/28/2019 at 16:45 0 comments

    For any entrepreneurs out there .. this .. this shd be a thing .. but refined of course.

    NodeMCU + HC-05 Bluetooth Module + 3 TIP120 (60V Relays)

    Offers WIFI and BT IOT capabilities for up to 3 low voltage .. things. A veritable maker's paradise.

    Point is .. a large majority of my projects and other's-maker's projects would embrace a primal integration of these elements in to a refined minute board. None of that learning complex AT cmds for ESP or BLE non-sense .. #MakeMakeMakeAgain

    Hey, @Benchoff .. HaD branded board?

  • Version 0.5 Abandoned-ish

    Vije Miller01/26/2019 at 17:21 0 comments

  • Version 0.4 Abandoned

    Vije Miller01/25/2019 at 11:26 0 comments

  • Version 0.3 Fail

    Vije Miller01/22/2019 at 21:05 0 comments


    A23 12V -- Fail

    28L 6V -- Fail

    CR2 3V -- Pass

    E90 1.5V -- Fail

  • Version 0.1 and 0.2 Fail

    Vije Miller01/21/2019 at 01:56 0 comments

View all 10 project logs

  • 1
    Step 1

View all instructions

Enjoy this project?



Dan Maloney wrote 01/31/2019 at 15:38 point

I simultaneously want to see the video, and don't want to see the video...

  Are you sure? yes | no

Vije Miller wrote 02/02/2019 at 23:14 point

#PirateWorldProblems .. that's an eye patch joke.

  Are you sure? yes | no

Mike Szczys wrote 01/29/2019 at 22:03 point

Ooof, that kind of makes me queasy to see those so close to your wrists/palms... invest in burn cream ;-P

  Are you sure? yes | no

Vije Miller wrote 02/02/2019 at 23:13 point

The sweat from the stress of the thought of it exploding on my wrist acts as a natural flame retardant.

  Are you sure? yes | no

Similar Projects

Does this project spark your interest?

Become a member to follow this project and never miss any updates