Decoding most of the infrared signals can be easily

handled by PIC16C5X microcontrollers. This application

note describes how this decoding may be done.

The only mandatory hardware for decoding IR signals

is an infrared receiver. The use of two types is

described here. Both are modular types used often by

the consumer electronics industry. The first type

responds to infrared signals modulated at about

40 kHz. The second responds to non-modulated infrared

pulses and has a restricted range. The hardware

costs of each approach will be less than two dollars.-Decoding most of the infrared signals can b e easily handled by PIC16C5X microcontrollers . This application note describes how this deco ding may be done. The only mandatory hardware fo r decoding IR signals is an infrared receiver. T he use of two types is described here. Both are mo dular types used often by the consumer electron ICs industry. The first type responds to infrar ed modulated signals at about 40 kHz. The second responds to non-modulated infrared pulses and has a restricted range. The hardware costs of ea ch approach will be less than two dollars.