Grosir Smart Electronics Kits NE555+CD4017 Light Water Flowing Light

Mohon tanyakan stok terlebih dahulu sebelum order Package : SMD is_customized : Yes Model Number : CD4017 Rotating LED SMD NE555 Soldering Practice Board DIY Kit Operating Temperature : 1 Dissipation Power : 1 Supply Voltage : 1 Condition : New Type : Voltage Regulator Brand Name : HUISHENGYUFA Origin : Mainland China Features: After power on, the 10 LEDs will light up sequentially from left to right, showing the state of running lights. This kit can display the NE555 timing and CD4017 counting functions intuitively. It is a starter kit for learning timers, counters, frequency dividers, and lantern controllers. At the same time, the kit has good effects, is very interesting and practical, and is also the preferred material for beginners to get started. Circuit principle: This kit is mainly composed of a clock generation circuit and a decimal counter circuit. It is a self-excited multivibrator with NE555 as the core. The power supply charges capacitor C2 through R11, R12, and R13. When C2 just starts to charge,2 of NE555 is still in Low level, so the output3 is high. When the power is charged to 2/3 of the power supply voltage to C2 through R11, R12, R13, the level of the output3 changes from high to low, and the internal discharge tube of NE555 turns on , Capacitor C2 is discharged through R13, R12, NE5557 until the voltage across C2 is lower than 1/3 of the power supply voltage, NE5553 level changes from low to high again. C2 is charged again, This cycle forms an oscillation. The charging time is: 0.695(R11+R12+R13)C2, and the discharging time is: 0.695(R13+R12)C2. Adjusting R13 can control the output frequency of the oscillator. The clock oscillation signal of NE555 is constantly added to14 of CD4017. There are 10 LEDs connected to the 10 output terminals of the CD4017. When the 10 output terminals of the CD4017 generate high levels in turn under the