IrDa Adaptor for the desktop PC
This is a simple IrDa Adaptor that can be used to connect devices with an IrDa port to the Desktop PC.This circuit must however be connectd to the IrDa port on the motherboard.Please check the motherboard manual for the pinouts of the connector.
board
circuit, click to enlarge

List Of Components :

  1. CD4069 Hex Inverter
  2. 3 x BC547B Transistor
  3. 1 Red & 1 Green Led
  4. NPN Photo Transistor
  5. Infrared LED
  6. 4 x 10K Resistance
  7. 15K x Resistance
  8. 22K Resistance
  9. 1 x 220Ω Resistance