Makeblock Me Line Follower V2

It has two sensors on the module and each sensor contains two parts – an IR emitting LED and an IR sensitive phototransistor. It can output a digital signal to mBot or other Arduino device so the robot can reliably follow a black line on a white background or vice versa.

Specifications
● Operating voltage: 5 V DC
● Operating temperature: 0–70℃
● Detection range: 1–2 cm
● Detection angle: <120°
● Control mode: Dual digital interface
● Dimensions (L x W x H): 51 mm x 24 mm x 22 mm

Features
● The white zone on the module is for connection with metal beams.
● The two LED indicators report the line following status.
● Reverse connection of power does no harm to the IC.
● It is susceptible to natural light, so it may not perform well in places where the ambient light varies greatly.
● It supports programming in Arduino IDE, and simplifies the programming process with a runtime library.
● It supports block-based coding on mBlock 5 and mBlock 3, which is suitable for all ages.
● The connection is easy with RJ25 connectors.
● It features modular installation, compatible with LEGO parts.
● It has pins S1, S2, VCC, and GND, which support most Arduino main control boards.