‘Silver bullet’ – Oscilloscope Infrared Receiver

$10.00$15.00

A highly accurate IR receiver for use with your Oscilloscope, with integrated BNC connector.

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Description

A highly accurate IR receiver for use with your Oscilloscope, with integrated BNC connector.

A while ago we came across a website on infrared remote controls

An Inside View - showing the IR Led, BNC & RCA connetors.
An Inside View – showing the IR Led, BNC & RCA connectors.

which suggested a simple way to view IR signals using an Oscilloscope. The idea is to use a standard IR Led mounted into a BNC/RCA plug using a spare channel making an Oscilloscope infrared receiver. So we set about ordering the connectors, which arrived in the post today. Another way of looking at this device is as a ‘poor-mans’ IR receiver, but if you have an Oscilloscope to plug it into then maybe you are not so poor after all.

The idea is to shine your IR remote control on to the IR Led while pressing a key which results in a small amount of current passing through the IR LED. This in turn creates a voltage differential across the terminals of the Led. For this to work well, you need to have the emitter of the remote control right up against the IR LED of the receiver.

Silver Bullet - displaying IR signal on oscilloscope (1Volt peak)
Silver Bullet – displaying marks and spaces of IR signal on oscilloscope (1 Volt peak, 200mV/500uSecs per division)

You can read the full article here and maybe make your own!

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Silver Bullet – Pre-soldered, Silver Bullet – Parts Only