<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><p>Features:<br/>1. Automatic trajectory patrol: accurate photoelectric sensing technology, to ensure that the trolley along the 15mm black trajectory stable driving<br/>2. DIY Creator Kit: suitable for experimental teaching, cultivate hands-on ability, experience the fun of assembling from scratch<br/>3. High-efficiency voltage comparison: adopts LM393 chip, high sensitivity, fast response, precise control<br/>4. simple and easy to use design: only two No. 5 battery power supply, board size moderate, easy to carry and operate<br/>5. Flexible adjustment of sensitivity: standardized photoresistor and LED welding height, user-defined tracing sensitivity to ensure optimal performance</p><p>Parameter：<br/>Product Name: Intelligent cart kit<br/>Supply voltage: 3V (the kit does not contain batteries, you can buy two 5 batteries, recommended NANFU)<br/>Board size: 7.2*10.5cm<br/>Main control chip: LM393 voltage comparator chip</p><p>Working principle:<br/>LM393 compares the size of the two photoresistors at any time, when there is an imbalance (for example, one side of the pressure black runway) immediately control one side of the motor to stop, the other side of the motor to accelerate the rotation, so as to make the trolley to correct the direction and restore the correct direction, the whole process is a closed-loop control, and therefore can be quickly and sensitively controlled.</p><p>Package include:<br/>Intelligent cart kit x1<br/><br/></p><div><br/></div></div></div><p><br/></p>