Published December 7, 2017 © GPL3+

Fireworks / Sparkler Igniter

Get ready for your fireworks: the turn of the year will definitely come.

BeginnerShowcase (no instructions)1 hour891

Things used in this project

Hardware components

Particle Photon

Breadboard (generic)

Sparkler

Relay (generic)

Songle SRD 05VDC-SL-C

Crocodile Wires

2 Pieces

Nichrom 80

Jumper Wires with a high resistance to transmit 220V

5 Pieces

Underlay for your desk

optional: before you ruin your workplace

Extinguisher

optional: to save yourself if available

Story

Prepare yourself

Today I ruined my desk: so that does not happen to you, put a protection on your desk. The NiChrom vaporizes and crumbles into tiny, small beads that burn into the surface!

We work with a high, lethal tension and go to the limit of the relay - think about what you are doing!

Having a fire extinguisher handy in case of an emergency.

Start here to learn about

a Relay

First of all, I put together a circuit that powered a 12V fan with the usual jumper wires (without the yellow cable via JST) and a 12V power supply. Please look at the control of the relay via D4 (here you are in the 5V circuit of your photon on the way). On the opposite side, an independent circuit of 12V is switched, which drives the fan (or something else).

Relay is a good choice to drive higher circuits

You can also drive a fountain or water pump your aquarium.

Else go to the fun

Use the same code, but change the power supply to 220V/10A (beware of danger to life) and the jumper wires: swap the thin jumpers on the side of high Voltage for jumper wires, which tolerate the higher voltage (otherwise you get 2 puffs of smoke).

The reason:

U = R * I

Volt = Ohm x Ampere

230 = 2 x 115

You can also try to ignite the NiChrom wire through the 12V: except for a noticeable heat, but does not cause ignition.

check all steps - put out the power

I found an old lamp cable with an additional switch.

You can set up your fireworks within the range of your wifi and ignite using your photon: also several ignitions of sparklers or all sorts of colorful fireworks (currently not yet available). In my experimental setup, sparking a sparkler sufficed: Guys, do not do rash things with it - protect your eyes and do not light cigarettes with them.

Within a few milliseconds, the NiChrom wire - cut one hand from the 10-meter roll and wrap it around the sparkler or detonator - will be hot and fizzy: that's enough to ignite the sparkler.

with underlay

Well, are you already smiling?

I save you at this point the much too long video in which a sparkler actually burns (The hackster-Team will thank me, that I do not exhaust his storage capacity).

Blynk

Let people freeze New Year's Eve outside: You release your prepared fireworks from inside via Blynk. To do this, simply drag a Button widget that costs 200 Energy Points to the otherwise empty Blynk app and take the authorization code into the firmware to be flashed in the marked place.

Button mapped on virtual 3 as SWITCH

I'm going to look for another table and I'd rather organize this kind of project in the open air. Wish everyone a Merry Christmas and a Happy New Year!

myFan

// MyFan v1.0 - Ingo Lohs - Stand: 06.12.2017 - works with Particle Firmware v0.7.0-rc.3
// mit einem Relay lassen sich weitere Lasten in einem unabhängigen Stromkreis schalten
// Blynk: 1x Button for 200 Energy Points mapped on V3

    /* 
             -----[    ]-----
  Relay VCC -|VIN        3V3|-    
  Relay GND -|GND        RST|-
            -|TX        VBAT|-
            -|RX         GND|- 
            -|WKP         D7|-
            -|DAC         D6|-
            -|A5          D5|-
            -|A4          D4|- Relay IN SIGNAL
            -|A3          D3|-     
            -|A2          D2|-     
            -|A1          D1|- SCL 
            -|A0          D0|- SDA
              \____________/
             
    */

#include <blynk.h>

// Relay is a HIGH LEVEL: action is on HIGH!!! connectet on 3,3V or 5V

    int baudrate = 9600;              // Serial Monitor 
    #define relayPin D4               // SIGNAL from Relay
    #define internalLED D7            // internal Device LED from Spark Core or Particle Photon
  
    // You should get Auth Token in the Blynk App.
    // Go to the Project Settings (nut icon).
    char auth[] = "<<< your blynk code here >>>";
    #define vRelayBtn V3
    unsigned int vRelayStatus; // global var
  
// *********    

    BLYNK_WRITE(vRelayBtn) {     // Blynk app WRITES button status to server
    vRelayStatus = param.asInt();
    if(vRelayStatus == 1){
    digitalWrite(relayPin, HIGH);
    digitalWrite(internalLED, HIGH); // internal LED on
    Serial.println("Relay is now ON");    
    }
    else {
    digitalWrite(relayPin, LOW); 
    digitalWrite(internalLED, LOW); 
    Serial.println("Relay is now OFF");   
    }
    }

// *********  

    void setup() 
    {
      Serial.begin(baudrate); // Serial Debug Console: CMD - particle serial monitor --follow on Windows or MAC: Terminal - ls /dev/tty.* - screen /dev/tty.usbmodem1411
      while(!Serial); //Waiting for Serial connection
      pinMode(relayPin, OUTPUT); //Set pin D4 as an OUTPUT
      pinMode(internalLED, OUTPUT); //Set pin D7 as an OUTPUT
      digitalWrite(relayPin, LOW); // Relay off - no pump at start
      digitalWrite(internalLED, LOW); // internal LED off
      Blynk.begin(auth); // Blynk magic starts here
    }

// *********    

    void loop() 
    {
    Blynk.run();    
    }

Credits

Ingo Lohs

182 projects • 194 followers

I am well over 50 years and come from the middle of Germany.

Thanks to danionescu.

Fireworks / Sparkler Igniter

Things used in this project

Hardware components

Story

Prepare yourself

Start here to learn about

Else go to the fun

Blynk

Code

myFan

myFan

Credits

Ingo Lohs

Comments

Embed the widget on your own site

Fireworks / Sparkler Igniter

Fireworks / Sparkler Igniter

Things used in this project

Hardware components

Story

Prepare yourself

Start here to learn about

Else go to the fun

Blynk

Code

myFan

myFan

Credits

Ingo Lohs

Comments

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