Infra-red Sensor

The infra-red sensor decodes any correctly modulated infra-red light signal it receives and passes this to a PICAXE. This allows key presses on an infra-red remote control or infra-red commands sent from another PICAXE to be detected and acted upon.

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Schematic

PCB

Read an infra-red key press code

This program will receive key presses from an infra-red remote control using an infra-red receiver connected to input pin C.0 and will display all key press codes in the 'b1' variable. The infra-red remote control must be set to produce Sony TV infra-red command codes.

Code Example:
main:	irin C.0, b1		; Wait for a key press code
	debug			; Display the value
	goto main		; Repeat
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Create Module

The infra-red sensor create module allows infra-red commands from a TV-style remote control to be received.

Bill of Materials

DescriptionCodeQty
Infra-red sensor LED020 1 Buy Now
4k7 resistor (pack 100) RES4K7 1 Buy Now
4.7uF electrolytic capacitor CAP004 1 Buy Now

Simulation

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Comments

  • Posted by GlenRichardson

    Can you explain what the resistor and capacitors do please. Also can you use a single Capacitor between V+ and GND for and entire circuit board with multiple chips on it, or do you require one for each chip?

  • Posted by erco

    Capacitor & resistor are not needed in most cases if the power supply is stable.

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