IRTX $29.95
irtx pic
Key Chain Infrared (IR) Remote Control Transmitter Development Kit
Control virtually any Infrared device by transmitting the proper code from IRTX. An Atmel AVR ATMega88V is the heart of this transmitter. Write your own code to transmit any command to any TV, VCR, and any other Infrared enabled device.
Software Tools
Compiler
Compile and build your code using the Free GNU GCC compiler tools for AVR.

Download Example source code
Source code in C to demonstrate how to send IR commands to an Olevia Syntax LCD TV.

Programming software
Programming software is used to communicate with Programming Hardware to send compiled code to the microcontroller. Any programming software that supports the ATmega88V will work.

  • UISP AVR In-System Programmer
Hardware Tools
Programming hardware
Programmers are used to download compiled code into the microcontroller. Any programming cable that supports the ATMega88V will work.
  • AJBMV ByteBlaster MV cable
Remove CR2032 when ISP supplied power is connected so current doesn't back flow into the battery. CR2032 are not chargeable. Just like any other battery types, charging non-chargeable batteries can result in injury.
Electrical Spec
Battery Required 3V Lithium CR2032 Coin Cell 240mAh
IRTX standby current draw: 1uA Typical
IRTX standby hours: 240,000 Hours Max using 240mAh CR2032
Current Draw While Transmitting: 50mA Typical
Mechanical Spec
irtx-pcb pic
ISP Header Description
Pin 1 MISO
Pin 2 VCC IN
Pin 3 SCK
Pin 4 MOSI
Pin 5 RST#
Pin 6 GND
AVR Port Description
PB1(OC1A) IR TX LED. Low = IR on
PC0 LED. Low = LED on
PD7 Right Button (FF)
PD6 Up Button (PLAY)
PD5 Left Button (REW)
PD4 Down Button (STOP)
PD3 Center Button (POWER)
* All Buttons are LOW = Pressed
* Battery Neg(-) Face PCB, Battery Pos(+) Face Up