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Arduino Beginner Project #3: How to Build Simple Torchlight using Arduino Uno

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  Arduino Beginner Project #3: How to Build Simple Torchlight using Arduino Uno   About Project:  The LED will light up when push button is pressed. Components: Arduino Uno Breadboard  LED  Push button Resistor 220 Ohm   Resistor 10k Ohm Jumper Male-to-male   USB cable   Schematic Diagram:       Coding using Arduino IDE: #define LED 11 #define BUTTON 2 int button_state; void setup() {   pinMode(LED,OUTPUT);   pinMode(BUTTON,INPUT); } void loop() {   button_state = digitalRead(BUTTON);   if (button_state == LOW)   {     digitalWrite(LED,HIGH);   }   else   {     digitalWrite(LED,LOW);   } } Watch this project tutorial on Youtube:   Thank you.

IoT Beginner Project #2: How to Monitor Temperature Data with LED Alert using BLYNK App

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  IoT Beginner Project #2: How to Monitor Temperature Data with LED Alert using BLYNK App   About Project:  The temperature data and graph can be monitored by using Blynk App through Wi-Fi. The LED will light up if the temperature is equal or higher than 35 degrees celsius. Components: Smart phone with BLYNK App Computer  Breadboard  ESP32  Sensor LM35 Red LED  Resistor 220 Ohm   Jumper Male-to-Female   Micro USB-B  Internet needed   Schematic Diagram:       Coding using Arduino IDE: #define BLYNK_PRINT Serial #include <WiFi.h> #include <WiFiClient.h> #include <BlynkSimpleEsp32.h> BlynkTimer timer; char auth[] = "__YlX-ijzaSbHG0zdCennMY1SYXoH26A"; // Auth Token in Blynk Application or by email. char ssid[] = "mywifi"; //wifi name char pass[] = "mypassword"; //wifi password int Raw= 0; double Volt = 0; double Celcius = 0; const int ledPin = 22; // Led di pin 22 const int lmPin = 35; // LM...

IoT Beginner Project #1: How to Blink LED using BLYNK App Button with Internet of Things (IoT) via ESP32 Wifi

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  IoT Beginner Project #1: How to Blink LED using BLYNK App Button with Internet of Things (IoT) via ESP32 Wifi   Objective:    To blink the LED using BLYNK app button via ESP32 Wifi.   Components: Smart phone with BLYNK App Computer  Breadboard  ESP32  LED  Resistor 220 Ohm   Jumper Male-to-Female   Micro USB-B  Internet needed   Schematic Diagram:   Coding using Arduino IDE:     #include <Blynk.h>   #define BLYNK_PRINT Serial #include <WiFi.h> #include <WiFiClient.h> #include <BlynkSimpleEsp32.h> char auth[]="3mkKYun-7TmkxAK1x5J9XPD2gXl1QsXH";//Auth. token: char ssid[]="babysharkdudududu"; //wifi name: char pass[]="wifipassword"; // wifi password: int LEDpin= 22; void setup() {   Serial.begin(115200);   Blynk.begin(auth, ssid, pass);   pinMode(LEDpin,OUTPUT);   pinMode(LEDpin, LOW); } void loop(){   Blynk.run(); } Watch this project tutori...