8x Reflective Proximity Sensor Board, Line Obstacle Finder

Description

Board Features:

• Very suitable for robot project, to scan and follow on floor line.
• On board 8 reflective proximity  sensors, typicall could connect to arduino A0-A7
• Default 5V power, connect jumper to use 3.3V power
• Can use QTRSensors library, or simply read all analog input.
• Each sensor distance is 8.5mm, total sensing length is 8.5 * 7 = 59.5 mm
• Customizable for longer range.