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NE555+CD4017 LED Chaser LED Running Light Flow light kit Capacitor Oscillator Clock Siganal Electronic Production DIY kits
Limited time offer, ends 07/19 By NexusPoint
- NE555+CD4017 LED Chaser LED Running Light Flow light kit Capacitor Oscillator Clock Siganal Electronic Production DIY kits
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About this item
- With NE555 as the core of self-excited multi-tuned oscillator, the power supply charges the capacitor C1 through R2, R3 and R4
- When C1 starts to charge, pin 2 of NE555 is still at low level, so output pin 3 is high. When the power supply is charged to 2/3 of the power supply voltage through R2, R3 and R4, the output pin 3 level changes from high to low, and the discharge tube in NE555 closes.
- The charging time is: 0.695 (R2+R3+R4) C1, the discharging time is: 0.695 (R4+R3) C1, adjust R4 to adjust the flow rate of LED lights
- Capacitor C1 discharges through R4, R3, and pin 7 of NE555
- Note: This kit needs to be soldered by yourself
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- Return for refund within: 30 days
- Return for replacement within: non-replaceable
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