Wireless communication between two Arduinos using inexpensive RF modules
Arduino

Wireless communication between two Arduinos using inexpensive RF modules

Raj from Embedded Lab has posted a new article exploring an easy wireless communication setup between two Arduinos using low-cost ASK RF transmitter and receiver modules. He used a 433MHz Tx/Rx pair with two Arduino boards to illustrate how to construct a low-range wireless...

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LTC4125 – 5W AutoResonant Wireless Power Transmitter
IC

LTC4125 – 5W AutoResonant Wireless Power Transmitter

The LTC4125 is a simple and high performance monolithic full bridge resonant driver capable of delivering over 5W of power wirelessly to a properly tuned receiver. The device controls the current flow in a series connected transmit coil LC network to create a simple, safe and...

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Simple FM Radio
RF

Simple FM Radio

by electronics-diy.com: This is one of my favorite radio builds just because of how simple it is and how well it is able to pick up a lot of FM radio stations. I have browsed the world in search of a one transistor FM receiver. I have seen a couple but they were always attached to...

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Decoding and sending 433MHz RF codes with Arduino
ArduinoRF

Decoding and sending 433MHz RF codes with Arduino

by liwenyip @ instructables.com: In this tutorial I’ll show you how to use an Arduino to decode signals from RF remotes, and re-send them to remotely control some mains switches and a garage door. Decoding and sending 433MHz RF codes with Arduino -...

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Simple Infrared Barrier
Control

Simple Infrared Barrier

by Maurizio @ dev.emcelettronica.com: Although a remote control is not so difficult to design and build, there is an even simpler option: the IR barrier. This consists of a constant IR signal permanently going from an emitter to a receiver, both of them being in two different places...

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Wireless Transmitter System
Power

Wireless Transmitter System

This wireless project is a power transmission system, it works on the principle of magnetic induction. This Wireless Charging system works as the digital switched mode power supply with the transformer, which is separated into two parts: The transformer primary coil is on the...

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