LED Chaser Rain Effect with Bright Trail - NE555 and CD4017 - PCB Tutorial
► $2 for 1-4 Layer PCBs, Get SMT Coupons: https://jlcpcb.com/DYE
This is a Rain LED circuit using a NE555 and a CD4017. I have divided this circuit into two parts, the first with NE555 generates an (adjustable) frequency which issent to the CD4017 (Pin 3 NE555 to Pin 14 CD4017) The second part of the circuit, with CD4017, manages the LEDs, making them run at a speed set by the frequency that I just told you about (from NE555). LED speed can be adjusted by a 47KΩ trimmer... and in this second version I added some electrolytic capacitors to create a small bright trail effect.
Components:
1x NE555 IC
1x CD4017 IC
1x 330Ω Resistor 1/4 Watt
2x 1KΩ Resistor 1/4 Watt
1x 47KΩ Trimmer
1x 1uF @25/50/100V Electrolytic Capacitor
10x 4.7uF @25/50/100V Electrolytic Capacitor
1x 8 pin DIP (not mandatory if you solder the IC on PCB)
1x 16 pin DIP (not mandatory if you solder the IC on PCB)
20x LED 5mm (any color)
1x LED 3mm (PWR LED)
1x 1N4007 Diode (protection against polarity reversal)
PCB: (Ready for jlcpcb.com): https://drive.google.com/file/d/1bhec...
*Don't use my PCB for profit or sponsored videos.
This circuit must be powered with 5~9V DC or via USB
Do you want to power these LEDs via USB?
► • Rain LED USB (DEMO)
For any other questions you can ask me for explanations in the video comments:)
Chapters:
0:00 - Intro
0:35 - Circuit explanation
2:18 - Unboxing
3:16 - Assembly
5:26 - Test
6:05 - END
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Watch another video =)
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● Voltage Detector: • VOLTAGE Detector DIY - Tutorial on PCB
WARNING: This video is only for demonstration. I don't take any responsibility.
#LED #chaser #diyprojects