How To Make DIY Wireless Rocket Igniter using Arduino & Bluetooth by WTC Zone

How To Make DIY Wireless Rocket Igniter using Arduino & Bluetooth by WTC Zone

Creating a DIY Wireless Rocket Igniter using Arduino & Bluetooth using an Arduino, Bluetooth module, and relay is both exciting and practical for remote ignition applications. Here’s a step-by-step guide on how to make this safely and effectively:

Project Overview

• Components Needed:
  • Arduino (e.g., Arduino UNO)
  • Bluetooth module HC - 05
  • Relay dual Channel
  • laptop
  • Programing Cable
  • Breadboard and jumper wires
  • Nichrome Wire (igniter)
  • 9 V battery
  • Battery Set for Igniter
  • heating element connector
  • metal wires

Wiring Diagram

2. Relay Module to Arduino:

   • VCC of Relay -> 5V on Arduino
   • GND of Relay -> GND on Arduino
   • Signal pin of Relay -> Digital Pin 8 on Arduino (or any available pin)

3. Bluetooth Module to Arduino:

   • VCC of Bluetooth -> 5V on Arduino
   • GND of Bluetooth -> GND on Arduino
   • TX of Bluetooth -> RX on Arduino
   • RX of Bluetooth -> TX on Arduino

4. Relay to Igniter:

   • Connect one end of the nichrome wire or rocket igniter to the Normally Open (NO) terminal of the relay.
   • Connect the other end of the nichrome wire to an external battery (e.g., 9V or 12V) to supply enough current for ignition.
   • Connect the other side of the battery to the Common (COM) terminal of the relay.

Video Link: - Click Here For Video

How To Make DIY Wireless Rocket Igniter using Arduino & Bluetooth by WTC Zone simple Circuit: -

How To Make DIY Wireless Rocket Igniter using Arduino & Bluetooth by WTC Zone Arduino Programming: -

Arduino IDE Program

const int relayPin = 8;  // Relay is connected to D8

void setup() {

  Serial.begin(9600);   // Initialize serial communication for debugging

  pinMode(relayPin, OUTPUT);  // Set the relay pin as an output

  digitalWrite(relayPin, LOW);  // Initialize the relay to OFF state

  Serial.println("Bluetooth Relay Controller Started...");

 

  // Initialize Bluetooth (HC-05) - Note: HC-05 uses Serial for communication

  Serial.println("AT commands can be sent now...");

  delay(1000); // Small delay

  Serial.println("AT+NAME=MyRelayController"); // Set name (optional)

  delay(100); // Small delay

}

void loop() {

  if (Serial.available() > 0) {

    String input = Serial.readStringUntil('\n');

    input.trim();

    Serial.println("Input Received: " + input);

   

    if (input == "0") {

      digitalWrite(relayPin, LOW);  // Turn OFF the relay

      Serial.println("Relay Turned OFF");

    } else if (input == "1") {

      digitalWrite(relayPin, HIGH);  // Turn ON the relay

      Serial.println("Relay Turned ON");

    }

    delay(50); // Small delay to control the loop speed

  }

}

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Instructions to Operate

1. Load the Code: Upload the code to your Arduino using the Arduino IDE.
2. Bluetooth Pairing: Pair your smartphone with the Bluetooth module (usually requires PIN 1234 or 0000).
3. Open Bluetooth Terminal App: Use any Bluetooth terminal app (e.g., Bluetooth Terminal or Serial Bluetooth Terminal) to connect to the Bluetooth module.
4. Ignite the Rocket:
   • In the Bluetooth app, send the command '1' to the module.
   • This triggers the relay, which completes the circuit with the nichrome wire, causing it to heat up and ignite the rocket.

Explanation of the Code

• The Bluetooth module receives the command wirelessly and sends it to the Arduino.
• When the Arduino receives the '1' command, it triggers the relay to close the circuit, which then heats the nichrome wire.
• After 3 seconds hit the button to OFF the igniter.

Safety Tips

• Distance: Always maintain a safe distance from the rocket while testing and igniting.
• Environment: Perform this outdoors in an open area with no flammable materials around.
• Emergency Cutoff: Consider adding an emergency cutoff switch to kill the circuit if needed.

This setup should provide a reliable and safe way to wirelessly ignite small rockets or similar devices using Bluetooth and Arduino.

Circuit Simulation:

You can not use Tinkercad to simulate this project as there is no elements available in tinker cad yet. Let me know if you need more details or help setting up.

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