This powerful RF transceiver is also highly secure thanks to a HW support of CRC-16 and AES-128. The RFM69HCW is a highly integrated RF transceiver capable of operation over a wide frequency range, including the 433, 868 and 915 MHz license-free ISM (Industry Scientific...

Shadowandy’s Arduino-based Dust Sensor project: Put together a dust sensor using Arduino Mega 2560, Shinyei PPD42NS dust sensor and LCD shield. The codes and wiring instructions for Arduino Mega 2560 and Shinyei PPD42NS is as follow. However, I did include Serial output so you...

RS232 to RS485 Board (R) provides a seamless connection of the PC to an RS485 network. Simplex connection of this interface to the RS485 network Easy way of switching the modes between Receiver and Transmitter ( Slide Switch) 5 V regulated supply provision on board 9-pin,...

DTMF Development Board offers a very convenient way to generate DTMF tones and demodulate it.  It uses the famous MT8880/MT8888 DTMF transreceiver IC. Easy 10 pin Box Header connector for interfacing data/control pins Crystal derived frequency source for accurate generation and...

Shane has been working on making small robots and made a prototype of a matchbox car, a robot car that fits inside a matchbox: This build consists of a tiny DC motors ripped from a pair of 9g servos, a h-bridge motor controller, an el-cheapo 8 bit pic and a 100mAh 3.7V LiPo...

Dan Ternes blogged about his Arduino-based controller for analog slow cookers: With the AC power control figured out, I considered the User Interface. I opted for something simple. The Adafruit RGB LCD Shield would work well as it had both a display and buttons built in. Sure, I...

by DangerousTim @ instructables.com: That moment you take your eyes off the TV remote for just a second, because of which it falls into the hands of your annoying sibling. Yes, fighting for control over the TV is a daily struggle for many. But the TV Remote Jammer shown in this...

by magkopian @ instructables.com: The development board is based on a PIC18LF4553 microcontroller. The microcontroller features a Full Speed USB 2.0 (12Mbit/s) interface without the need for any external components. Also, it has 32KB of program memory, 2KB of RAM and it supports an...