Low Cost Wireless Rocket Launcher
by Philippe Blocquet in Circuits > Arduino
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Low Cost Wireless Rocket Launcher
A DIY remote controlled rocket launcher, to have fun launching rockets with your kids...
Caution: While the circuit is powered on always stay at a safe distance from the rocket!
Supplies
Everything can be found on Amazon...
2 Arduino UNO boards
1 buzzer for Arduino
1 radio emitter for Arduino
1 radio receiver for Arduino
1 LCD 16x2 with I2C interface for Arduino
1 Keypad for Arduino
1 I2C interface board for the Keypad
2 Pushbuttons
4 batteries LiPo 1800mAh
Igniters (exemple Klima rocket)
1 safety toggle switch
1 relay 5v
2 LEDs 5mm (one yellow, one red)
Cabling on a Breadboard
You can refer to the circuits schematics:
Emitter (manage the countdown and the access code).
The LCD and the Keypad are connected together on the I2C bus of the Arduino (SDA and SCV).
The 7 segments display is connected on Arduino PIN 5.
The red push button is connected on Arduino PIN7.
The buzzer is connected on Arduino PIN3.
The radio emitter DATA is connected on Arduino PIN12. Note: The radio emitter is supplied by the batteries (not by the Arduino 5v).
Receiver (connected to the ignitor)
The radio receiver DATA is connected on Arduino PIN11.
The red LED is connected to Arduino PIN9.
The yellow LED is connected to Arduino PIN7.
The ignitor si connected to the relay.
The safety toggle switch is connected to the batteries and to the Arduino supply plug.
Coding
You can download all the required libraries from the internet.
The package included in the Arduino IDE doesn't include them all.
3D Printing
Use a slicer like Cura to print the .STL files with your favorite 3D printer. Use the best printing quality.