Uploaded December 2021 | Updated September 2026, 3 weeks ago
► $2 for 1-4 Layer PCBs, Get SMT Coupons: 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): drive.google.com/file/d/1bhecme-HWBbONvhF-bRbFSALCoXLWcqv/view?usp=sharing
*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?
► youtu.be/3IUJcIZ2bvY
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
■▬▬▬▬▬ LINK & Support ▬▬▬▬▬■
✅ YouTube: youtube.com/c/Stefano91ste
✅ Instagram: instagram.com/Stefano91ste
✅ Pinterest: https://www.pinterest.it/Stefano91ste
✅ My STORE: youtube.com/c/Stefano91ste/store
Watch another video =)
● Music Keyboard: youtu.be/ajtR6eDOaQI
● LED Water Level: youtu.be/n9GB0nfwG8s
● Police Light: youtu.be/PtmEqcRbu4w
● Vu-Meter Stereo: youtu.be/l8oUQpGAOCw
● Traffic Light: youtu.be/6iRjZMHVvhs
● Vu-Meter 40 LED: youtu.be/oWB2faToGAA
● Voltage Detector: youtu.be/CxbG7u8kvNk
WARNING: This video is only for demonstration. I don't take any responsibility.
#LED #chaser #diyprojects
► $2 for 1-4 Layer PCBs, Get SMT Coupons: 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): drive.google.com/file/d/1bhecme-HWBbONvhF-bRbFSALCoXLWcqv/view?usp=sharing
*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?
► youtu.be/3IUJcIZ2bvY
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
■▬▬▬▬▬ LINK & Support ▬▬▬▬▬■
✅ YouTube: youtube.com/c/Stefano91ste
✅ Instagram: instagram.com/Stefano91ste
✅ Pinterest: https://www.pinterest.it/Stefano91ste
✅ My STORE: youtube.com/c/Stefano91ste/store
Watch another video =)
● Music Keyboard: youtu.be/ajtR6eDOaQI
● LED Water Level: youtu.be/n9GB0nfwG8s
● Police Light: youtu.be/PtmEqcRbu4w
● Vu-Meter Stereo: youtu.be/l8oUQpGAOCw
● Traffic Light: youtu.be/6iRjZMHVvhs
● Vu-Meter 40 LED: youtu.be/oWB2faToGAA
● Voltage Detector: youtu.be/CxbG7u8kvNk
WARNING: This video is only for demonstration. I don't take any responsibility.
#LED #chaser #diyprojects
