Ne555 cd4017 led flash

NE555 + CD4017 LED Flash DIY Kit 3-5V Light LED Module Feature: Power supply voltage: 3-5V PCB Size: 88 x 25mm This kit is not included instruction. Principle: This kit is made up main circuit and decimal counter circuit, from the core of the self-excited NE555 multivibrator power through R2, R3, R4 charge the capacitor C1, C1 started when charging, NE555 2 feet still in low, so the output pin 3 goes high when power through R2, R3, R4 to charge C1 to 2/3 of the supply voltage, the output pin 3 level from high to low, NE555 conducting internal discharge, capacitor C1 through R4, R3, NE555 7 feet discharge until the voltage across C1 is less than 1 /3 of the supply voltage, NE555 and 3 feet level from low to high. C1 and charge again this cycle oscillations formed. Charging time: 0.695 (R2 + R3 + R4) C1, discharge time: 0.695 (R4 + R3) C1, R4 can be adjusted to control the output frequency of the oscillator, the oscillation clock signal is applied continuously NE555 CD4017 14 feet, the output terminal 10 is connected with the CD4017 10 LED, when the output terminal 10 turns CD4017 generated clock signal is applied at a high level, the D1 - D10 are sequentially lit to form a water -light effect. You can adjust the flow rate adjustment R4 LED lights. Note: This is a DIY kit, you need to assembly it. This kit is not included the instruction. Package included: 1 x NE555 + CD4017 LED Flash DIY Kit

Description: This kit uses NE555 and CD4017 chips to form an analog alarm lamp circuit. Blue and red LED flicker alternately according to the pulse, and RP1 can adjust the flicker frequency. The working voltage of the circuit is DC9-12V. The kit does not contain power supply. It is easy to make and has obvious effect. Interesting, suitable for beginners and hobbyists to learn assembly. Power: 5V Package included: 5 x DIY Two Color LED Thunderbolt Flash Kit

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: Welding exercises for beginners Overall beautiful and practical Board Diameter: 6.1cm/2.4Inch Package Included: 3 x DIY 4017 Running Water Light Kit 3pcs DIY 4017 Running Water Light NE555 LED Horse Race Lamp Flash Kit 3pcs DIY 4017 Running Water Light NE555 LED Horse Race Lamp Flash Kit 3pcs DIY 4017 Running Water Light NE555 LED Horse Race Lamp Flash Kit

Buy 5pcs DIY 4017 Running Water Light NE555 LED Horse Race Lamp Flash Kit for R313.31

Buy 10pcs DIY 4017 Running Water Light NE555 LED Horse Race Lamp Flash Kit for R536.64

Buy 5pcs DIY 4017 Running Water Light NE555 LED Horse Race Lamp Flash Kit for R290.89

Feature: This kit is designed for SMD soldering practice only. No need manual, put the right element to the right position as follow. Battery: 3*AA battery (package does not includes) Soldering Note: SMD components are relatively small, please note that do not lose, light-emitting diodes, diodes, chips have direction, pay attention! The LED green dot for the negative, you can use a multimeter diode lights light-emitting diodes, red pen for the positive, the black end of the diode is negative. When using power supply must pay attention to the power supply positive is connected +, negative connected -, the supply voltage is 5V. Package includes: (per set) Parameter Number Quantity Parameter Number Quantity 100-510Ω/0805 R1-R50 50 0603 resistance PR1-5 5 4.7-10KΩ/0805 R51-R60 10 NE555 U1 1 10-20KΩ/0603 R61-R70 10 CD4017 U2 1 0.1uF/0805 C1-C10 10 Circuit board -- 1 1N4148/1206 D1-D10 10 Manual Chinese only 1 S8050/SOT-23 Q1-Q10 10 0402 -- 10 LED/0805 L1-L10 10 QFP44 IC -- 2 Test photos, for reference only!