LED Vu-Meter with Microphone LM3915 & LM386 - PCB Tutorial скачать в хорошем качестве

LED Vu-Meter with Microphone LM3915 & LM386 - PCB Tutorial

► $2 for 1-4 Layer PCBs, Get SMT Coupons: https://jlcpcb.com/DYE This Vu-Meter with LM3915 integrates an LM386 amplifier and a microphone, so that it can work without having to be physically connected to any audio source. As LED display I used a bargraph (Model: KYX-B10G). The sensitivity of the microgon (GAIN) is adjustable by means of a 10KΩ trimmer placed on the PCB. The Vu-Meter must be powered with a voltage between 5v and 12v DC, and the maximum current absorption is equal to 100mAh. There is also a 1N4007 diode in the circuit which protects the Vu-Meter from short circuits during power supply phase. ● Components: 1x LM3915 IC 1x LM386 IC 1x 10 LED Bargraph (Model: KYX-B10G)* 1x Microphone Capsule 1x 3mm LED (any color) 1x DIP 18 PIN (for LM3915) 1x DIP 8 PIN (for LM386) 1x 1uF Electrolytic Capacitor (25-100v) 2x 10uF Electrolytic Capacitor (25-100v) 1x 100uF Electrolytic Capacitor (25-100v) 1x 10nF Polyester Capacitor 1x 47nF Ceramic Capacitor 2x 1N4007 Diode 1x 50Ω ¼W Resistor 1x 1KΩ ¼W Resistor 3x 2,7KΩ ¼W Resistors 2x 100KΩ ¼W Resistors 1x 10KΩ Trimmer 1x 9V battery Plug (or two PIN/wires) 1x Two PIN for Dot/Bar Mode 1x PIN Bridge with two PIN 1x Trimmer knob (not mandatory) I used a 10 Green LED Bargraph (Model: KYX-B10G) but you can use a Bargraph of different colors, as long as it respects the pinouts of this model. ● Equipment: Tin Wire (with integrated flux) FLUX (extra FLUX if you need to use it) Soldering Iron Wire cutters ● PCB: (Ready for jlcpcb.com): https://drive.google.com/file/d/1gua9... *Don't use my PCB for profit or sponsored videos. ● Features: Range: 30dB (3dB for LED) Power Supply: 9-12v DC Absorbed current (MAX): 100mA/h Weight (assembled): 20g PCB Layer: 2 PCB Size: 33x67 mm PCB Thickness: 1,6 mm Screw fixing holes: 4x 2 mm Short circuit protection: YES (with a 1N4007 Diode) Cool design: YES Adjustable GAIN (by 10KΩ Trimmer) About LM3915: LM3915 is a monolithic integrated circuit that detects analog voltage levels and drive ten LEDs, LCDs or vacuum fluorescent displays, supplying a logarithmic 3 dB/step analog display which can be calibrated logarithmically and is suitable for log measurements as logarithmic bar graph driver. About LM386: LM386 is an integrated circuit containing a low-voltage audio power amplifier.It is suitable for battery-powered devices such as radios, guitar amplifiers, and hobby electronics projects. It can output 0.25 to 1 watts of power and has an impedance of 8Ω About 4mm LED: It is a LED with a diameter of 4 mm, an unusual size. I found this LED on an old board taken from trash. I haven't found any others on the market.. don't worry, you can use a 3 mm LED! About Microphone Connector: The microphone connection pad on this PCB was designed by me to allow the connection of different types of microphone capsules. Just be very careful in respecting the polarity + and - of the microphone. ► PROS and CONS of use a Vu-Meter with mic instead a standard one: 🟢 PROS: Portability, Not physically connected to the Amp, So cool! 🔴 CONS: Less accurate measurement than cable For any other questions ask me in the video comments:) ✅ Subscribe to my YouTube channel It's FREE! Chapters: 0:00 - Intro 0:34 - Circuit Explanation 2:03 - JLCPCB Factory 2:25 - PCB Upload 3:05 - Unboxing 3:40 - Start PCB Assembly 6:45 - Assembly Completed 7:00 - Music Test 7:50 - Circuit Diagram 7:55 - END ■▬▬▬▬▬ LINK & Support ▬▬▬▬▬■ ✅ YouTube:    / stefano91ste   ✅ Instagram:   / stefano91ste   ✅ Pinterest: https://www.pinterest.it/Stefano91ste ✅ My STORE:    / stefano91ste   Watch another video =) ● Music Keyboard:    • Music Keyboard with NE555 PCB Tutorial   ● LED Water Level:    • LED Water Level indicator PCB Tutorial   ● Police Light:    • POLICE LED Light DIY with NE555 - PCB Tuto...   ● Vu-Meter Stereo:    • Vu-Meter Stereo -20 +3dB LM3916 - PCB TUTO...   ● Traffic Light:    • Make your own Traffic Light on PCB - NE555...   ● Vu-Meter 40 LED:    • Vu-Meter 40 LED on PCB with LM3915 TUTORIAL   ● Voltage Detector:    • AC Voltage Detector DIY - PCB Tutorial   WARNING: This video is only for demonstration. I don't take any responsibility. Test Music: Elektronomia - Sky High [NCS Release] (    • Elektronomia - Sky High | Progressive Hous...   ) - Copyright-free Music #LM3915 #diyprojects #VuMeter