DHT temperature and humidity sensors, are very basic and slow, but are great for hobbyists who want to do some basic data logging. Each DHT is made of two parts: Capacitive Humidity Sensor and Thermistor. There is also a very basic chip inside that does some analog to digital conversion […]
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 […]
Step 1: Items you need to buy 1x Arduino UNO 1x Color Sensor 1x Breadboard 1x RGB Led 3x Resistors – 220E Step 2: Connections Connect the following pins together properly: Color Sensor: S0 <-> PIN 3 S1 <-> PIN 4 S2 <-> PIN 5 S3 <-> PIN 6 Out […]
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 […]
WiFi connections are sometimes a must in your project. It really gives it the IoT identity and power to send/receive messages/commands from anywhere using only an internet connection. Although you might think it’s hard to add this option to your project, a simple google search can prove the opposite. Before […]
This short article will show you how to transform your Arduino into a cell phone. Remember that you can always visit us or contact us during our normal opening hours. How to connect SIM900 This model does not include the pins to mount it directly on the Arduino and […]
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 […]
Check out this wireless control device and all it’s features Watch this video to know more about this product! This picture below, explains how to use this wireless device to control relays! You can always contact us: +961 1 483031 or +961 3 675686 or +961 71 416448 or […]