WALL-E Revived

This project brings WALL-E to life. It was a simple plastic toy but now it's a Wii Nunchuk controlled robot that can move left, right, forward and backward and moves his arms forward and backward.

I removed two motors with their gears from old cd-rom/dvd player and made wheels from plastic bottle caps:

Insert the eyes:

WALL-E needs some plastic removed/cut-out to fit in the wheels, the gears and the motor:

Put together:

Connecting the Nunchuk and make cutting-markings for 2 motors for the arms:

Fitting in the motors for the arms:

Reconnecting the gears:

Adding PVC pipes to the last gears and connected the ropes to the arms:

Test-ride:

Now as a rookie i'm sure I made mistakes in the code or the wiring so please let me know if you have any suggestions/corrections. Don't hold back ;)

UPDATE 07/01/2021:

Added motion control by using the acceleration-meter in the Nunchuk. So now, if the Z-button is pressed, you don't have to use the joystick anymore, just move your hand in any direction:

Here's the new code:

//L293D

//Motor A

const int motorPin1 = 9; // Pin 14 of L293

const int motorPin2 = 10; // Pin 10 of L293

//Motor B

const int motorPin3 = 6; // Pin 7 of L293

const int motorPin4 = 5; // Pin 2 of L293

//This will run only one time.

#include <Wire.h>

#include "Nunchuk.h"

void setup() {

Serial.begin(9600);

Wire.begin();

// Change TWI speed for nuchuk, which uses Fast-TWI (400kHz)

Wire.setClock(400000);

// nunchuk_init_power(); // A1 and A2 is power supply

nunchuk_init();

//Set pins as outputs

pinMode(motorPin1, OUTPUT);

pinMode(motorPin2, OUTPUT);

pinMode(motorPin3, OUTPUT);

pinMode(motorPin4, OUTPUT);

}

void loop() { //open loop

if (nunchuk_read()) { //open if

// Work with nunchuk_data

byte nunZ = nunchuk_buttonZ();

if (nunZ != 0){ // if button Z is pressed we run accel mode

Serial.print("joy accelX: ");

Serial.println(nunchuk_accelX());

Serial.print("joy accelY: ");

Serial.println(nunchuk_accelY());

Serial.print("Z: ");

Serial.println(nunZ);

int nunAccel = nunchuk_accelX();

int nunAccelY = nunchuk_accelY();

if(nunAccel > 20){ //left

int nunZXpos = map(nunAccel, 0, 180, 0, 240);

analogWrite(motorPin1, nunZXpos);

analogWrite(motorPin2, 0);

analogWrite(motorPin3, 0);

analogWrite(motorPin4, nunZXpos);

}

else if(nunAccelY < -20){ // backward

int nunZYpos = map(nunAccelY, 0, -216, 0, 240);

analogWrite(motorPin1, 0);

analogWrite(motorPin2, nunZYpos);

analogWrite(motorPin3, 0);

analogWrite(motorPin4, nunZYpos);

}

else if(nunAccelY > 20){ // forward

int nunZYneg = map(nunAccelY, 0, 180, 0, 240);

analogWrite(motorPin1, nunZYneg);

analogWrite(motorPin2, 0);

analogWrite(motorPin3, nunZYneg);

analogWrite(motorPin4, 0);

}

else if (nunAccel < -20){ // backward

int nunZXneg = map(nunZ, 0, -180, 0, 240);

analogWrite(motorPin1, 0);

analogWrite(motorPin2, nunZXneg);

analogWrite(motorPin3, nunZXneg);

analogWrite(motorPin4, 0);

}

else { //do nothing

analogWrite(motorPin1, 0);

analogWrite(motorPin2, 0);

analogWrite(motorPin3, 0);

analogWrite(motorPin4, 0);

}

}else{

int nunX = nunchuk_joystickX();

int nunY = nunchuk_joystickY();

if (nunX < -20) { // IF X axe is a lower than 20 we go left

int nunXneg = map(nunX, 0, -100, 0, 240); //240 is the maximum speed for the motor

Serial.println(nunXneg);

analogWrite(motorPin1, 0);

analogWrite(motorPin2, nunXneg);

analogWrite(motorPin3, nunXneg);

analogWrite(motorPin4, 0);

}else if(nunX > 20) { // IF X is higher than 20 we go right

int nunXpos = map(nunX, 0, 100, 0, 240);

Serial.println(nunXpos);

analogWrite(motorPin1, nunXpos);

analogWrite(motorPin2, 0);

analogWrite(motorPin3, 0);

analogWrite(motorPin4, nunXpos);

}else if(nunY < -20) { // IF Y is lower than 20 we go forward

int nunYneg = map(nunY, 0, -100, 0, 240);

Serial.println(nunYneg);

analogWrite(motorPin1, 0);

analogWrite(motorPin2, nunYneg);

analogWrite(motorPin3, 0);

analogWrite(motorPin4, nunYneg);

}else if(nunY > 20) { // IF Y axe is higher than 20 we go backward

int nunYpos = map(nunY, 0, 100, 0, 240);

Serial.println(nunYpos);

analogWrite(motorPin1, nunYpos);

analogWrite(motorPin2, 0);

analogWrite(motorPin3, nunYpos);

analogWrite(motorPin4, 0);

}else { //if joystick is not moved we do nothing

analogWrite(motorPin1, 0);

analogWrite(motorPin2, 0);

analogWrite(motorPin3, 0);

analogWrite(motorPin4, 0);

}

delay(10);

}

} //end if

} //end loop