Mr. Line

Mr. Line is a line-tracing robot.

 It follows a path laid out for it along a floor or other smooth surface.

The path must be a dark line on a light background. Each emitter projects infrared light onto the floor.

Each emitter projects infrared light onto the floor. The amount of light reflected back from the dark line differs from that reflected from the floor; thus it can tell where the dark line is. Mr. Line comes in kit form, allowing the user to more fully understand robotic structure and functionality. Although relatively simple to assemble, Mr. Line is highly functional and is quite "smart". Information travels from the sensors to the CPU and then to the motors for steering. By including a CPU in Mr. Line's construction, the robot is able to make constant course corrections, search for the line if it is knocked off course, and handle the cross over involved in a "figure 8" course layout.

Mr. Line is a line-tracing robot. It follows a path laid out for it along a floor or other smooth surface. The path must be a dark line on a light background.

Mr. Line has three pairs of infrared emitters and receivers. One pair is on the left, another in the middle and the third on the right.

Features

• JS8051-A1 CPU Board (AT89C2051 CPU)
• Two speed settings
• Pulse Width Modulation (PWM) Motor Control
• Intelligent line tracing
• Continual Adjustment
• If it goes off line, it can find its way back
• Can handle intersecting lines
• Source program (see below) and lesson Plan are available

JS2051-A1 CPU Board Description

The JS2051A1 CPU BOARD is a very small CPU board that uses an ATMEL AT89C2051 CPU. The AT89C2051 is an INTEL 8051 compatible CPU. It has an extra analog comparator and internal 2K-byte Flash memory. The JS2051A1 CPU BOARD has X-tal (22.1184 MHz), POW (Power On Reset) circuit, two LED's, test pin (GND), I/O extension ports.

JS2051-A1 CPU Board Features

• Small AT89C2051 CPU board
• Easily connect and disconnect to the user board
• 22.1184 MHz clock operating
• Up to 115,200 bps serial communication available
• Useful internal analog comparator
• Power On Reset Circuit
• Two user LED's
• Test Pin (GND)

JS2051-A1 CPU Board Specifications