Published May 26, 2019 © GPL3+

Voice Activated Catapult (Poor Man's Bluetooth Module)

Hey Siri, fire! --> catapult fires. Because of limitations over knowledge and equipment I came up with my own wireless communication module.

BeginnerFull instructions provided1,121

Voice Activated Catapult (Poor Man's Bluetooth Module)

Things used in this project

Hardware components

Arduino UNO

SG90 Micro-servo motor

Apple iPhone

wireless ( bluetooth ) speaker

Resistor 10k ohm

Jumper wires (generic)

Aluminium foil

Software apps and online services

Arduino IDE

Apple Shortcuts

Story

I was bored, so I decided to make a catapult which fires with my voice command. firstly I decided to use the ESP8266-01 but I failed (it just got hot) at using it. Then I wanted to use Blynk app but that failed to. Then I tried to sense the playing music from my telephone on my bluetooth speaker with an ultrasonic distance sensor. but that failed too. (ultrasonic sensor can't detect sound made with normal speaker) As the only wireless way to communicate with Arduino I had to stick with the speaker. So I made a sound switch which activates when my speaker play music. basically I putted 2 aluminium foils on top of each other without hitting each other and putted them on top of my speaker. then in apple's shortcut app I told Siri to play drum sound when I say fire. the sound made by speaker connects two foils together. then arduino sensed this and rotated servo which was connected to catapults trigger. Then I died :)

complete story and footages:( BTW you sub you encourage me to do more :)) (and no i'm not begging for subs)(seriously:))

https://www.youtube.com/watch?v=SlpKI2ZS69g&feature=youtu.be

Schematics

Code

servo and push button

// Include the Servo library 
#include <Servo.h> 
// Declare the Servo pin 
int servoPin = 9; 
// Create a servo object 
Servo Servo1; 

const int buttonPin = 2;     // the number of the pushbutton pin

// variables will change:
int buttonState = 0;         // variable for reading the pushbutton status

void setup() {
  Servo1.attach(servoPin); 
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);
}

void loop() {
  // read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);
  // check if the pushbutton is pressed. If it is, the buttonState is HIGH
  if (buttonState == HIGH) {
    // turn servo
    Servo1.write(180); 
    delay(3000);
  } else {
    // turn servo back
    Servo1.write(0); 
  }
}

Credits

musef

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Voice Activated Catapult (Poor Man's Bluetooth Module)

Things used in this project

Hardware components

Software apps and online services

Story

Custom parts and enclosures

Mini Catapult

Schematics

schematics of servo and button

Code

servo and push button

Credits

musef

Comments

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Voice Activated Catapult (Poor Man's Bluetooth Module)

Voice Activated Catapult (Poor Man's Bluetooth Module)

Things used in this project

Hardware components

Software apps and online services

Story

Custom parts and enclosures

Mini Catapult

Schematics

schematics of servo and button

Code

servo and push button

Credits

musef

Comments

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