Infrared

Infra Red Link
Infra Red Link
March 1, 2011

A basic Infra Red Link for audio communication for distances upto 3 metres. [more]

Infra Red Extender
Infra Red Extender
November 2, 2010

A design based on an active filter, centered at 37KHz modulating frequency and uses a photo diode and op-amp from Texas Instruments. [more]

IR Remote Control Modulation Detector
IR Remote Control Modulation Detector
November 2, 2010

A circuit to extract and measure the modulated carrier of an Infra Red remote control [more]

Infra Red Link
Infra Red Link
October 11, 2010

This is a battery powered IR Link which may be used in more than one room. The standby current is extremely low - giving a good battery life; and by shutting down in the presence of extraneous IR radiation it copes with the problem of... [more]

Infra Red Switch
Infra Red Switch
October 11, 2010

This is a single channel (on / off) universal switch that may be used with any Infra Red remote control using 36-38kHz [more]

Infra Red Extender Mark 4
Infra Red Extender Mark 4
September 11, 2010

An Infra Red wired Repeater circuit to control appliances from a remote location. [more]

IR Remote Control Extender Mark 3
IR Remote Control Extender Mark 3
September 11, 2010

This Mark3 version of the Infra Red extender is a special version designed to control appliances that use high frequency modulated IR remote controls. [more]

IR Remote Control Extender Mark 2
IR Remote Control Extender Mark 2
September 11, 2010

This is an improved IR remote control extender circuit. It has high noise immunity, is resistant to ambient and reflected light and has an increased range from remote control to the extender circuit of about 7 meters [more]

Infra Red Remote Control Extender
Infra Red Remote Control Extender
September 11, 2010

This circuit is used to relay signals from an Infra Red remote control in one room to an IR controlled appliance in another room. [more]