Category Archives: Arduino


Arduino wireless joystick

taifur has posted great instructions about how he built an Arduino powered wireless joystick that can be used as a console for playing PC games. His design features a joystick module and 5 buttons, with which you can control the mouse cursor as well as implement any 5 keyboard functions (such as W, A, S, D and Space are the most commonly used keyboard buttons for games). My Arduino wireless joystick has two parts. One is receiver which will be connected to PC via USB port. Another is transmitter and this is the actual joystick in your hand. As I mentioned earlier, Receiver unit

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Wireless communication between two Arduinos using inexpensive RF modules

This article explores an easy wireless communication setup between two Arduinos using low-cost ASK RF transmitter and receiver modules that are readily available in the market. They are found in different shapes, but functionally they are all same. Both Tx and Rx modules contain a single data line for input and output and support a low-speed Amplitude Shift Keying modulation for data communication. You can get them with 315MHz or 433MHz carrier frequency. In this tutorial, I am using a 433MHz Tx/Rx pair with two Arduino boards to illustrate how to construct a low-range wireless temperature and humidity monitor.

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Starling: A wifi enabled LED matrix display

Explore Embedded, a Banglore, India based startup has introduced a modular and wifi enabled LED matrix display named Starling, that can not only showcase text messages but also notifications from social networking websites, live scores from sports events websites, weather data from online weather services, and more. Starling comes in an easily cascadable modular design with one master module that features the ESP8266 device for Wifi connection and other slave modules to expand the display size horizontally. Each module is powered by Atmega8 microcontroller that stores fonts and custom characters LED patterns in a look up table, drives its own 8×8 LED matrix,

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Another tutorial on using NRF24L01 wireless modules with Arduino

educ8s.tv has posted a new video tutorial on how to connect two Arduino modules with low-cost NRF24L01 wireless modules. The NRF24L01 module is a low cost bi-directional transceiver module. The cost of it is less than 3$! You can find a link for it in the description of the video. It operates at the 2.4GHz band and it can achieve at a data rate of 2Mbits! Impressive isn’t it? It uses the SPI interface in order to communicate with Arduino, so it is very easy to use with it. We have to connect 7 of the 8 pins of the

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