LASER HARP Circuit with STC-89C52 DIY KIT скачать в хорошем качестве

LASER HARP Circuit with STC-89C52 DIY KIT

Inspired by the famous LASER HARP this is for everyone! ► Buy Laser Harp: https://circuitpop.com/products/c51-l... A Laser Harp is a harp without strings. It is replaced by a bright light beam. The user only needs to turn the light beam as if the strings were turned, and they can still play a melody. Photoresistor and IC STC89C52 are composed of two parts. When the beam emitted by the laser tube is blocked, the corresponding photoresistor senses and produces a change in resistance. The system of seven photoresistors produces a change in high and low potentials, and the IC reads the changes in high and low potentials of the photoresistor to complete the input of the operation command. When there is laser irradiation, the STC reads the voltage of the photoresistor, at this time it is low level. When there is no laser irradiation, the STC reads the voltage of the photoresistor, then it is high level. In this way, when the light of the laser is blocked, a switching effect can be generated in the circuit. The frequency of sound that can be heard by the human ear is 20Hz to 20kHz, and the frequency of harp notes should also be in this range. It's just that different notes have their own fixed frequency. Features: Auto Play Laser Light Power at 5V DC 21 Notes (7 gropup of 3) Switch for High, Medium and Low sounds Components: 1x STC89C52 IC 1x 40 Pin DIP 7x Laser Diode 7x Photoresistor 10x 1KΩ Resistors 9x 10KΩ Resistors 1x 12.000 MHz Quartz 2x 30 pF Ceramic Capacitors 1x 10uF Electrolytic Capacitor 2x Buttons 1x DC connector 1x Transistor S8550 Heat shrink tubing 3x Green LED 3mm 7x Red LED 3mm 1x Buzzer 1x Main PCB 3x PCB for structure 4x PIN (for USB) USB to DC cable Extra components are included with the KIT, like Resistors, LED and Pins.. I think they have been put as spare parts, I'm not sure.. they are still useful for other projects :) ✅ Subscribe to my YouTube channel It's FREE! Chapters: 0:00 - Intro 0:49 - Unboxing 1:22 - Explanation 1:57 - Assembly 6:40 - TEST 9:07 - End ⚠WARNING Laser: Always use the necessary protections with LASER!!! ■▬▬▬▬▬ LINK & Support ▬▬▬▬▬■ ✅ YouTube:    / stefano91ste   ✅ Instagram:   / stefano91ste   ✅ Pinterest: https://www.pinterest.it/Stefano91ste ✅ My STORE:    / stefano91ste   Watch another video =) ● Music Keyboard:    • Music Keyboard with NE555 PCB Tutorial   ● LED Water Level:    • LED Water Level indicator PCB Tutorial   ● Police Light:    • POLICE LED Light DIY with NE555 - PCB Tuto...   ● Vu-Meter Stereo:    • Vu-Meter Stereo -20 +3dB LM3916 - PCB TUTO...   ● Traffic Light:    • Make your own Traffic Light on PCB - NE555...   ● Vu-Meter 40 LED:    • Vu-Meter 40 LED on PCB with LM3915 TUTORIAL   ● Voltage Detector:    • AC Voltage Detector DIY - PCB Tutorial   WARNING: This video is only for demonstration. I don't take any responsibility. #LASER #HARP #TUTORIAL