Grove - Infrared light barrier / distance sensor v1.2

Grove - Infrared light barrier / distance sensor v1.2

Description

The Grove - IR distance interrupter (light barrier / distance warning device) detects objects in the light path based on ITR9909. The sensor uses infrared emitting diode and NPN silicon phototransistor. It generates a digital HIGH output in the event of reflected light. The detectable range is 7.5-40 cm. 

Note: Sensitive to strong non-IR radiation. Bright light interferes with IR light detection on the photosensor.

Features

• Highly sensitive and reliable: ITR9909 reflective photosensor for fast output in reflected light.
• Longer detectable distance: up to 40 cm.
• Adjustable sensitivity: potentiometer for easy adjustment.
• Durable: no fear of light damage.
• Grove unit interface: "plug and play" for versatile applications.

Application

• Non-contact switching
• Line-following robots
• Optical encoders
• Object counting

Specifications

Hardware overview

• ITR9909 Reflective photosensor
• LM393 operational amplifier, rail-to-rail operational amplifier
• LED display: lights up when the infrared light value is exceeded
• Potentiometer for adjusting the light sensitivity

What is Grove?

Grove facilitates connection, experimentation and simplifies the prototyping process. No jumpers or soldering are required. More than 300 Grove modules have been developed to cover a wide range of applications and fulfill a variety of requirements. Not only the hardware is open source, but also the software. 

We offer various Grove shields to enable a connection to the Grove system with various microcontrollers . 

Parts list

• Grove - IR distance interrupter v1.2
• Grove - Cable