ITEM NAME:D2-1 DIY Kit Intelligent Tracking Line Smart Car TT Motor Electronic Parts A#S Product Description Description: D2-1 DIY Kit Intelligent Tracking Line Smart Car Kit TT Motor Electronic Smart Patrol Automobile Parts Working Principle: 1. The chip LM393 is at any time comparing the size of the two photosensitive resistors at any time. When there is an imbalance (for example, one side of the black runway), the motor is stopped immediately and the other side of the motor is rotated to make the car correct and return to the correct direction. The whole process is a closed loop control so that it can be controlled quickly and sensitively. 2. Photosensitive resistance, which can detect the strength of the outside light, the stronger the resistance value of the external light is smaller, the weaker the outside light is, the greater the resistance value. 3. When the red LED light is projected to the white area and the black runway, the resistance value of the photosensitive resistance will take place obviously, which will facilitate the control of the subsequent circuit. Assembly Steps: First step: the basic welding of the circuit part. A. The circuit welding part is relatively simple, the welding sequence is according to the principle of the height of the component from low to high. B. First welding 8 resistors, it is necessary to use the multimeter to confirm whether the resistance is correct, and the welding with polar components such as the triode, green indicator and electrolytic capacitor must be divided into the direction of the component of our picture as far as possible. C. When the welding capacity is welded, the pin is inserted into the side of the shadow on the PCB screen. When welding green LED, it is positive that the pin is long and the welding time can not be too long or easy to weld. D. D4 D5 R13 R14 can be temporarily unwelded and the integrated circuit chip can be unplugged. Please check carefully after the initial welding is completed. Second st.The screw is fixed on the rotating shaft of the motor, and finally the silicone tyre is sheathed on the wheel. Use the lead wire to connect the motor lead line well. D. D4 D5 R13 R14 can be temporarily unwelded and the integrated circuit chip can be unplugged.
