IR Receiver Photodiode 2 Pin 5mm

Description

These Infrared Photodiodes detect IR light and are used for IR remote control or IR obstacle avoidance and intrusion sensors.

Key Features of Infrared Photodiode:

• 940nm nominal wavelength detection
• Dark lens to reduce visible light interference
• 5V compatible

Infrared (IR) is the light spectrum that is commonly used for IR remotes and is outside the visible spectrum for the human eye.

These Photodiodes are used to detect the presence of IR which may be from an IR remote control, an IR emitter LED or even an open flame which also emits IR.

A photodiode is a semiconductor device that converts an optical signal into an electrical signal. The core of the diode is also a PN junction, which differs in structure from a normal diode in that the PN junction area is made as large as possible to facilitate the reception of incident light, the electrode area is kept as small as possible and the junction depth of the PN junction is very shallow, generally less than 1 µm.

When used as an IR remote control for something like a robot, the IR is typically pulsed at a modulated rate of 38kHz to created coded messages.  Different manufacturers have different transmission protocols for these coded messages.  There is a library that can be used with Arduino called IR Remote. if you are looking to create a standard remote control or other communication link that can make use of standard codes.

Technical Specifications

Package Includes:

• 1x Infrared Phototransistor