Published August 30, 2022

Cockroach Bot using Magicbot-esp-32

We will learn about how to make a Cockroach bot. This robot will move away from any light sources.

BeginnerProtip91

Things used in this project

Hardware components

magicbit

magicbot

Seeed Studio Lithium Ion polymer Battery pack - 3A

USB-A to Mini-USB Cable

Story

We will use the onboard LDR on the Magicbit board to get a measure of the light intensity. Whenever the light intensity goes over a threshold value, we will make the robot move in the opposite direction to the light.

Upload the given code to the Magicbit board.

code

bool dir = 1;


void setup() {
  pinMode(16, OUTPUT);
  pinMode(17, OUTPUT);
  pinMode(27, OUTPUT);
  pinMode(18, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int lux = analogRead(36);
  if (lux>1200) {
    if (dir==1) {
      digitalWrite(17, HIGH);
      digitalWrite(16, LOW);
      digitalWrite(18, HIGH);
      digitalWrite(27, LOW);
    }

    else {
      digitalWrite(17, LOW);
      digitalWrite(16, HIGH);
      digitalWrite(27, HIGH);
      digitalWrite(18, LOW);
    }
    delay(2000);
    dir = !dir;
  }else{
      digitalWrite(17, LOW);
      digitalWrite(16, LOW);
      digitalWrite(18, LOW);
      digitalWrite(27, LOW);
  }

}