Pololu 38 kHz IR Proximity Sensor, Fixed Gain, Low Brightness (irs05a)

This module features a fixed-gain, 38 kHz modulated IR sensor and a corresponding IR LED with oscillator circuit to make a tiny proximity sensor. This low-brightness version draws an average of 8 mA and has a typical sensing range up to approximately 12 inches (30 cm).

Alternatives available with variations in these parameter(s): maximum range Select variant…

	Description		Specs (6)		Pictures (9)		Resources (2)		FAQs (0)		On the blog (3)

Pololu 38 kHz IR proximity sensor (original irs05a version) receiver and emitter sides with labeled pinout.

Pololu 38 kHz IR proximity sensor (original irs05a version) with dimensions.

Pololu 38 kHz IR proximity sensor (original irs05a version) with included header pins.

Pololu 38 kHz IR proximity sensor, receiver side (original irs05a version).

Pololu 38 kHz IR proximity sensor, emitter side (original irs05a version).

Pololu 38 kHz IR proximity sensor (original irs05a version).

Schematic diagram for the Pololu 38 kHz IR proximity sensor (original irs05a version).

Oscilloscope capture of typical Pololu 38 kHz IR proximity sensor output when it is weakly, moderately, and strongly affected by fluorescent lights (top to bottom).

Oscilloscope capture of typical Pololu 38 kHz IR proximity sensor output close to its threshold of detection.

Related products

	Pololu 38 kHz IR Proximity Sensor, Fixed Gain, High Brightness
	Pololu 38 kHz IR Proximity Sensor, Fixed Gain, Low Brightness
	Vishay TSSP58P38 IR Detector Module, 38kHz, Automatic Gain (3-Pack)
	Vishay TSSP58038 IR Detector Module, 38kHz, Fixed Gain (3-Pack)
	Sharp/Socle GP2Y0A51SK0F Analog Distance Sensor 2-15cm
	Pololu Carrier with Sharp GP2Y0D815Z0F Digital Distance Sensor 15cm
	Pololu Carrier with Sharp/Socle GP2Y0A60SZLF Analog Distance Sensor 10-150cm, 3V
	Sharp/Socle GP2Y0A21YK0F Analog Distance Sensor 10-80cm
	Maxbotix LV-MaxSonar-EZ0 Sonar Range Finder MB1000
	VL6180X Time-of-Flight Distance Sensor Carrier with Voltage Regulator, 60cm max
	VL53L0X Time-of-Flight Distance Sensor Carrier with Voltage Regulator, 200cm Max
	QTR-1A Reflectance Sensor (2-Pack)
	QTR-L-1A Reflectance Sensor (2-Pack)
	Pololu Carrier with Sharp/Socle GP2Y0A60SZLF Analog Distance Sensor 10-150cm, 5V
	QTR-L-1RC Reflectance Sensor (2-Pack)
	0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Black
	0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Right Angle
	0.100" (2.54 mm) Female Header: 1x4-Pin, Straight
	QTR-1RC Reflectance Sensor (2-Pack)
	0.1" (2.54mm) Crimp Connector Housing: 1x4-Pin 10-Pack