User manual

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Chapter16 Infrared remote

control

Infrared receiving head

What’s Infrared receiving head?

Infrared remote control signals sent a series of binary pulse code. In order to make it from other

infrared signal interference during wireless transmission, typically modulated it on a particular

carrier frequency, and then emitted it by the infrared-emitting diode. The infrared receiving

apparatus will have to filter out other clutter, only the specific frequency of the signal and

restoring it into a binary pulse code. That is demodulated.

How it work?

Built-in receiver tube infrared emission tube emitted light signal is converted to a weak signal.

This signal via the IC internal amplifier amplifies. Then through automatic gain control, band pass

filtering, demodulation, and waveform-shaped to restore the original encoding of the remote

control transmitter, coded identification on the electrical input to circuit via a received signal

output pin head.

How to connect?

Infrared receiving head has three pin:

VOUT connected to the analog port.

GND received experimental board’s GND.

VCC received experimental board's +5 v.