robotics presentation for a club you run

Led blink
LED blink Code
#define led 2
void setup() {
// put your setup code here, to run once:
pinMode(led,OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(led,HIGH);
delay(1000);
digitalWrite(led,LOW);
delay(1000);
}

Ultrasonic
const int trigPin = 2;
const int echoPin = 4;
float duration, distance;
void setup() {
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
Serial.begin(9600);
}
void loop() {
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration*.0343)/2;
Serial.print("Distance: ");
Serial.println(distance);
delay(100);
}

LINE follower car
#define irPin1 2
#define irPin2 4
#define motorPin1 18
void setup() {
pinMode(irPin1,INPUT);
pinMode(irPin2,INPUT);
Serial.begin(9600);
pinMode(motorPin1,OUTPUT);
}
void loop() {
if(irPin1){
Left();
}
else if(irPin2){
Right();
}
else if(irPin1 && irPin2){
Forward();
}
else{
Stop();
}
}

void Forward(){
digitalWrite(motorPin1,1);
}
void Left(){
}
void Right(){
}
void Stop(){
}

Bluetooth Car
#include "BluetoothSerial.h"
BluetoothSerial SerialBT;
char receivedChar;// received value will be stored as CHAR in this
variable
#define Motor_Pin1 23
void setup() {
Serial.begin(9600);
SerialBT.begin("Team 2"); //type your team number
pinMode(Motor_Pin1,OUTPUT);
}

void loop() {
if (SerialBT.available()) {
receivedChar = SerialBT.read();
Serial.print ("Received:");//print on serial monitor
Serial.println(receivedChar);//print on serial monitor
if(receivedChar == 'F')
{
Forward();
}
if(receivedChar == 'B')
{
Back();
}
if(receivedChar == 'L')
{
Left();
}
if(receivedChar == 'R')
{
Right();
}
if(receivedChar == 'S')
{
Stop();
}
}
delay(20);
}

void Forward(){
digitalWrite(Motor_Pin1,1);
}
void Left(){
}
void Right(){
}
void Stop(){
}
void Back(){
}

Click On Arduino
Cloud -Home Page

Write led in name
Select bool in Declaration
Click on Read & Write
Click on “on change”
Click on Add Variable

Click On Set up a
3rd party device

Search v1 and Select DOIT ESP32

#include <ArduinoIoTCloud.h>
#include <Arduino_ConnectionHandler.h>
#define ledPin 2
const char DEVICE_LOGIN_NAME[] = ""; //enter your device login name from pdf
const char DEVICE_KEY[] = ""; // enter your device key from pdf
const char SSID[] = ""; //enter your mobile hotspot name
const char PASS[] = ""; //enter your hotspot password
bool led;
bool status = false;
void onLedChange();
WiFiConnectionHandler ArduinoIoTPreferredConnection(SSID, PASS);
void setup() {
Serial.begin(9600);
initProperties();
ArduinoCloud.begin(ArduinoIoTPreferredConnection);
setDebugMessageLevel(2);
ArduinoCloud.printDebugInfo();
pinMode(ledPin,OUTPUT);
}

void loop() {
ArduinoCloud.update();
if(!status){
if(ArduinoCloud.connected()){
digitalWrite(ledPin,HIGH);
delay(5000);
digitalWrite(ledPin,LOW);
status=true;
}
}
}
void onLedChange() {
if(led==true){
digitalWrite(ledPin,HIGH);
Serial.write("led on");
}
else{
digitalWrite(ledPin,LOW);
Serial.write("led off");
}
}
void initProperties(){
ArduinoCloud.setBoardId(DEVICE_LOGIN_NAME);
ArduinoCloud.setSecretDeviceKey(DEVICE_KEY);
ArduinoCloud.addProperty(led, READWRITE, ON_CHANGE, onLedChange);
}

Install Arduino_ConnectionHandler.h

robotics presentation for a club you run

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