Android phone used as a GSM shield for arduino. BLE112 Bluetooth low energy module. Arduino + Bluetooth + Android. Index of /mikem/arduino. Arduino RF Communication using RX & TX link Modules. This Tip/Walk-Through will guide you through a simple one way communication link between two Arduinos. The Project uses these RX/TX Radio Frequency (RF) Link Modules. Edit :- Links updated - old ones where retired .Boooooo (Thanks to Fritsl for bringing these cool babies to my attention ,i just had to try them out on my arduino and i am well impressed with thier performance ) Both Transmitter and Receiver together cost less than two tin cans with a piece of long string connected between !!!!!!! You will have to download the Virtualwire.h library and install it to your arduinos hardware/libraries folder More info on the Virtualwire communications library can be found as pdf file Receiver :- Basic link Arduino Mega using a RF Link Receiver - 315Mhz Only Four wires are required, i have used a audio cable from a cd drive which i rewired to accept the cables (neat).
Yellow is the Antenna - approx 30cm long (other end connected to thin air) Red is connected to 5 Volts.