Breadboard Projects

Variety of Breadboard Project Ideas

Background Color-coded Breadboard Project:

• Yellow: Projects with components and ICs

• Blue: Projects with Arduino, C++ programming language

• Green: Projects with Raspberry Pi, MicroPython programming language

• Black: Projects with FPGA, Verilog programming language

Components and ICs

Arduino

Raspberry Pi

FPGA

Circuit Detector with Light Indicator

Circuit Detector with Sound Indicator

LED Chaser

Arduino - Distance Sensor

Arduino Distance Seneor with LED indicator

// Arduino - Distance Sensor Project

int distanceThreshold = 0;
int cm = 0;
int inches = 0;

long readUltrasonicDistance(int triggerPin, int echoPin)
{
    pinMode(triggerPin, OUTPUT); 
    digitalWrite(triggerPin, LOW);
    delayMicroseconds(2);
    digitalWrite(triggerPin, HIGH);
    delayMicroseconds(10);
    digitalWrite(triggerPin, LOW);
    pinMode(echoPin, INPUT);
    return pulseIn(echoPin, HIGH);
}

void setup()
{
    Serial.begin(9600);
    pinMode(2, OUTPUT);
    pinMode(3, OUTPUT);
    pinMode(4, OUTPUT);
}

void loop()
{
    distanceThreshold = 350;
    cm = 0.01723 * readUltrasonicDistance(7, 6);
    inches = (cm / 2.54);
    Serial.print(cm);
    Serial.print("cm, ");
    Serial.print(inches);
    Serial.println("in");
    if (cm > distanceThreshold) {
    digitalWrite(2, LOW);
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
 }

    if (cm <= distanceThreshold && cm > distanceThreshold - 100) {
    digitalWrite(2, HIGH);
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
 }
    if (cm <= distanceThreshold - 100 && cm > distanceThreshold - 250) {
    digitalWrite(2, HIGH);
    digitalWrite(3, HIGH);
    digitalWrite(4, LOW);
 }
    if (cm <= distanceThreshold - 250 && cm > distanceThreshold - 350) {
    digitalWrite(2, HIGH);
    digitalWrite(3, HIGH);
    digitalWrite(4, HIGH);
 }
    if (cm <= distanceThreshold - 350) {
    digitalWrite(2, HIGH);
    digitalWrite(3, HIGH);
    digitalWrite(4, HIGH);
 }
 
    delay(100);
}