A practical build log, complete wiring guide, calibration notes, and flicker-free display sketch The MG811 is an interesting solid-electrolyte carbon-dioxide sensor, but it is not a simple “connect analog output to Arduino A0 and read percentage” device. During this project, we learned that the sensor needs a dedicated heater supply, […]
arduino
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Items Needed: Video: Code: //Simon says in LEDS. The game here ra7 betdawe leds w ba3den l player bado y3idoun.int buttonPins [] ={2,3,4,5,6};int ledPins [] = {7,8,9,10,11};int numberButtons = 5;int roundCounter = 0;int roundLedCounter = 3;unsigned long roundDuration = 10000; // 10 seconds la kel roundint BoardLEDS [50];int userBoardLEDS[50];int resetButtonPin […]
Items Needed: Code: #include "LCD.h"#include <LiquidCrystal_I2C.h>#define I2C_ADDR 0x27 // <<----- Add your address here. Find it from I2C Scanner#define BACKLIGHT_PIN 3#define En_pin 2#define Rw_pin 1#define Rs_pin 0#define D4_pin 4#define D5_pin 5#define D6_pin 6#define D7_pin 7LiquidCrystal_I2C lcd(I2C_ADDR,En_pin,Rw_pin,Rs_pin,D4_pin,D5_pin,D6_pin,D7_pin);void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(9600); lcd.begin(20,4); lcd.setBacklightPin(BACKLIGHT_PIN,POSITIVE); […]
Items Needed: Code: #include <FastLED.h>#define LED_PIN 7#define NUM_LEDS 30#define T1 10 // pin 10 is trigger for sensor 1#define E1 9 //// pin 9 is echo for sensor 1int val=0;CRGB leds[NUM_LEDS];long DistanceSensor (int, int); //trigger echovoid setup() {//delay(10000);Serial.begin(9600); pinMode(E1, INPUT); //echo sensor 1 pinMode(T1, OUTPUT); //trigger sensor 1 FastLED.addLeds<WS2812, LED_PIN, […]
Welcome to an exciting journey into the world of Arduino and Python programming! In this comprehensive tutorial, we will explore the intricacies of controlling an Arduino board using Python and Tkinter, a popular GUI toolkit. Our goal is to teach you how to create a simple yet powerful user interface […]
Below is the short video published on YouTube: Here’s the code: // ////////////////////////////////////////////////////////////////////////////// Project: Singing bowls illumination// Description: It turns on a different colour depending on which Chakra is played// Engineer: Alberto Lopez// More: https://misCircuitos.com// Date: 16 – nov – 2022 Chiang Mai (Thailand)/////////////////////////////////////////////////////////////////////////////// define DEBUG_MODE //Comment when finish debuging […]
For this tutorial, you’ll need: 1 x Arduino UNO 1 x Resistor 330E Jumper Wires 1 x Led 5MM 1 x Voice Recognition Module Watch this full video: Download the library before you start Led Control Example Code: #include <SoftwareSerial.h> #include "VoiceRecognitionV3.h" VR myVR(2,3); // 2:RX 3:TX, you can […]
For this tutorial, you’ll need: 2 x Arduino UNO 4 x Resistor 330E BreadBoard Jumper Wires 4 x Led 5MM 2 x DIP Switch 6 pole Watch this full video: First Version of Code: #define Working 12 #define led1 10 #define led2 9 #define led3 8 int led=0; void setup() […]
Please don't try this at home and always remember that Arduino UNO Supply voltage varies between 5V and 12V
In this tutorial, we will show you how to build a low cost thermometer, using Arduino & DS18B20 waterproof version (Digital Temperature Sensor) Step 1: Items you need to have Arduino UNO (or other Arduino Models) DS18B20 Waterproof Resistor 4.7KOhm (Preferably 1/2Watt). You can check the Watt availability for 4.7KOhm […]
Connect to the wireless network print(wifi.sta.getip()) --nil wifi.setmode(wifi.STATION) wifi.sta.config("SSID","password") print(wifi.sta.getip()) --192.168.18.110 Arduino like IO access pin = 1 gpio.mode(pin,gpio.OUTPUT) gpio.write(pin,gpio.HIGH) gpio.mode(pin,gpio.INPUT) print(gpio.read(pin)) HTTP Client -- A simple http client conn=net.createConnection(net.TCP, false) conn:on("receive", function(conn, pl) print(pl) end) conn:connect(80,"121.41.33.127") conn:send("GET / HTTP/1.1\r\nHost: www.nodemcu.com\r\n" .."Connection: keep-alive\r\nAccept: */*\r\n\r\n") HTTP Server -- a […]
This Sensor KY-037 is easy to use, cheap and can be used in different applications. It has two outputs: AO, analog output, real-time output voltage signal of the microphone. DO, when the sound intensity reaches a certain threshold, the output high and low signal. The threshold-sensitivity can be adjusted […]