4-CH IR Line sensor Module Battery Holders which can then be used

which can then be used to calculate headings or sense magnetic fields coming from different directions

projectors

Other electrical devices

LiPo Battery Voltage Tester

at the same time the indicator light up

4-CH IR Line sensor Module Battery Holders which can then be used4 CH IR Line Sensor Module A 4 channel IR line sensor module is a type of sensor that uses infrared (IR) technology to detect the presence or absence of a line or object. It typically consists of four individual IR sensors, each with its own phototransistor, that are arranged in a row. The module can be used to detect the position of a line, the edge of an object, or the presence of an obstacle in a robotic or automation application. It is often used