■ JLCPCB Prototype for $2(Any Color): jlcpcb.com
This is a PCB Vu-Meter.. A Vu-Meter with 20 LEDs, driven by two LM3915, the circuit has been professionally realized on a PCB (Printed Circuit Board) by the JLCPCB service. In this video I will go to assemble this Vu-Meter step by step. Assembly begins at 5:32 in the video, at 8:42 you can see the Vu-Meter test with a song and starting from 00:30 you can see a theoretical explanation of the circuit.
Later I made a second board to get the stereo mode.
After trying the excellent service offered by JLCPCB I recommend it, the quality of the circuits is high, customer service is always available and professional, the time of realization is short and the delivery of PCBs is by express courier.
JLCPCB is a great place to get hight quality custom circuit boards at an extremely low price, you can buy 10 PCB Boards for 2 Dollars.
JLCPCB is the largest PCB prototype enterprise and a High-Tech manufacturer specializing in quick PCB prototype and small batch PCB production. With over 12 years of experience in PCB manufacturing, has more than 400,000 customers, with over 10,000 online orders of PCB a day. Customer service is one of the best in the world, so feel free to upload your Gerber files for file review before completely submitting your order.
More About JLCPCB: support.jlcpcb...
Components: (for two boards)
20x LEDs 5mm Green
12x LEDs 5mm Yellow
8x LEDs 5mm Red
2x LED 3mm (PWR Led)
4x LM3915
4x DIP 18 Pin
2x 1K Resistor
10x 2.7K Resistors
2x 100K Resistor (Use 10K if LED1 always stays on)*
2x 1uF @ 25V Electrolytic Capacitor
12x 100uF @ 25V Electrolytic Capacitor
2x 1N4007 Diode
8x Pins (+VCC GND Signal)
*N.B: In the event that Led1 should remain on permanently, replace the 100K resistor with a 10K one.
This circuit must be powered between 9V and 12V DC, below I leave the references to view: the electronic circuit diagram, the PCB and the Gerber file to be uploaded directly on the JLCPCB website.
- PCB (Printed Circuit Board): 12:54
- Circuit Diagram: 13:02
- PCB Gerber Files (Ready for jlcpcb.com): goo.gl/Lo55tb
*Don't use my PCB for profit or sponsored videos.
*You can see the complete procedure to upload the Gerber file on jlcpcb.com in the video from 2:58
**JLCPCB have a Technical Support for exporting Gerber files from many software at this link: support.jlcpcb...
For any other questions you can ask me for explanations in the video comments:)
■ 10 LED Model: • How to Make a PCB Vu-M...
■ 20 LED Blue Model: • Vu-Meter 20 LEDs LM391...
► Subscribe to my Channel: / stefano91ste
WARNING: This video is only for demonstration. I don't take any responsibility for damage to things, people and animals.
Music:
- Ikson - Skyline (Circuit Explanations)
- Iron Man theme (Intro JLCPCB)
- Devotion - Vexento (PCB Assembly)
- Soldiers - Vexento (TEST)
#JLCPCB #PCB #LM3915
6 сен 2024