Sound control LED water lamp kit colorful CD4017 rotating cycle lamp electronic welding assembly DIY training parts
Product selling points:
1. This kit can display the functions of CD4017 very intuitively. It is a kit for learning counters, frequency dividers, and lantern controllers.
2. The kit is very interesting and practical, and it is also a material for beginners to get started.
3. According to the voltage change, the brightness of the LED light changes.
4. Has a good voice control sensitivity.
5. High-quality materials, long service life.
Parameter:
Power supply voltage: 3-12V (DC power supply)
Working voltage: 3-12V can be (the higher the voltage, the brighter the LED will be, the higher the sensitivity of voice control)
Board size: 50cm in diameter
Function Description:
This kit can display the functions of CD4017 very intuitively. It is a kit for learning counters, frequency dividers, and lantern controllers. At the same time, the kit has very good effects, is interesting and practical, and is also a material for beginners to get started.
Circuit function: 10 LEDs emit light in turns according to the sound size and height. The louder the sound, the faster the water speed, which can fully visualize the functions of the 4017.
Circuit principle: Q1 and its peripheral circuits form a simple amplifying circuit. MK converts the sound signal into an electrical signal, which is coupled to Q1 through C2 to amplify it. A voltage signal with high and low changes is formed at the collector of Q1. The voltage with sufficient amplitude is sent to CD4017 for counting. The input terminal (14 feet), every time a pulse arrives, the high level of the counter's Q0-9 output moves 1 bit in turn, illuminating the corresponding light-emitting diode, thereby producing the effect of a water lamp.
Package list:
PCB board*1
Component set *1