Makeblock, Me Line Follower Sensor

Makeblock, Me Line Follower Sensor

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This module has a potentiometer which can be used to adjust the detection range. The level of Mode pin can be controlled to select the operating mode. When it is in high level, the module can be triggered repeatedly for real-time induction. When it is in low level, the module is in non-repeatable trigger mode. If somebody is moving in the induction range, the module is triggered and maintained for a period of time. In this period, the state will not be interfered whether there is somebody moving in the deduction range.


Technical Specifications

Operating voltage: 5V DC
● Detection range: 1~2cm
● Detection angle: within 120°
● Control mode: Double-digital port control
● Module dimension: 51 x 24 x 21mm (L x W x H)


Functional Characteristics

White area of module is the reference area to contact metal beams
● Provide two LED indicators for feedback during line-following
● Anti-reverse protection – connecting the power supply inversely will not damage IC
● Easy to be influenced by natural light, and limited by greatly changed ambient light
● Support mBlock GUI programming, and applicable to users of all ages
● Adopt RJ25 port for easy connection
● Provide pin-type port to support most development boards including Arduino series


Pin Definition

  • Pin 1 - GND (Grounding)
  • Pin 2 - VCC (Power supply)
  • Pin 3 - S1 (Data output of sensor 1)
  • Pin 4 - S2 (Data output of sensor 2)


Wiring Mode

  • Connecting with RJ25

Since the port of Me Line Follower has blue ID, you need to connect the port with blue ID on Makeblock Orion when using RJ25 port. Taking Makeblock Orion
as example, you can connect to ports No. 3, 4, 5, and 6 as follows:

  • Connecting with Dupont wire

When the Dupont wire is used to connect the module to the Arduino UNO Baseboard, its S1 and S2 pins should be connected to digital ports as follows: