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TDA7072A moter driver btl can drive stereo speakers
in JA Nov 21,2025
moter driver TDA7072A can sound like this.Model number is RK-303
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Speaker Protection 4KW
Majumdar Oct 25,2025
Components1. 3×10KΩ resistor 1/4W.2. 1×39KΩ resistor 1/4W.3. 2×1KΩ resistor 1/4W.4. 5×1N4007 Diode.5. 1×Transistor C9013.6. 2×Transistor C945/ C1815.7. 2×220uF capacitor 25V.8. 1×Preset 100K-220K.9. 1×2 pin XHB connector base 2.54 mm.10. 4×Vertical PCB terminal 6.3 mm.11. 2×3 mm LED (Red, Green).12. 1×12V 30A Relay.Hello Friends, In this post, I make a 30A speaker protector. You can use this speaker protector for up to 4000W amplifiers. This speaker protector has protection and an active LED, so...
DIY Stereo Audio
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ModiFi - Modular Bluetooth Speaker
Arnov sharma Sep 26,2025
Greetings everyone and welcome back—meet ModiFi, the Modular Bluetooth Speaker that reinvents what a Bluetooth speaker can look like.I built it specifically for my desk setup after getting fed up with the underwhelming sound from my old monitor speaker.Instead of settling, I decided to make something from scratch—something that sounded better and looked way cooler.At its heart is the ZK-502MT 2.0 Stereo Bluetooth Amplifier Board, delivering reliable wireless audio with crisp stereo output. Paire...
8th Design Contest-Mechanical Project DIY USB
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Supervisor concept Bluetooth speaker
Hoang Sep 07,2025
This Speaker use 52mm speaker and Bluetooth 4.2 CT14 5Wx2 circuit.Feel free to contact me at maileviethoang@gmail.com for more information.
8th Design Contest-Mechanical Project 3D printing Audio
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PAM8403 Stereo Audio Amplifier Module: Custom Design
BARMAN Aug 23,2025
Custom design PAM8403 high-efficiency Class-D stereo audio amplifier module capable of driving 3W+3W (Left and Right) channels into 4Ω speakers with 90% efficiency. It operates on a 2.5V to 5.5V power supply. You can read the working principle of this stereo audio amplifier circuit along with its schematic in detail.
DIY Audio Amplifier
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Ambiance Playback Speaker
Aug 17,2025
PCB for autonomous, solar-powered Ambiance playback speakers.
DIY Board
93
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Speaker Protection Active, Protect, Clip, Signal
Majumdar Jun 22,2025
Components1. 5×10KΩ resistor 1/4W.2. 2×1KΩ resistor 1/4W.3. 1×39KΩ resistor 1/4W.4. 1×47KΩ resistor 1/4W.5. 1×4.7KΩ-10KΩ resistor 2W.6. 6×Diode 1N4007.7. 1×Zener Diode 1N4148.8. 1×Zener Diode 1N4744A (15V 1W).9. 1×Transistor C9013.10. 2×Transistor C945/ C1815.11. 2×Transistor 2N5551.12. 4×LED 3 mm.13. 1×Preset 100K-220K.14. 2×2 pin connector base 2.54 mm.15. 2×220uF capacitor 25V.16. 4×6.3 mm vertical PCB terminal.17. 1×Relay 12V 30A.Hello Friends, In this post, I make a speaker protector. You c...
11thAnniversary Audio Stereo
1025
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Speaker module 8002B for arduino
Fisher Jun 14,2025
Speaker module 8002B for arduino / esp32 / breadboard.Uses old speaker design and old pinout, compared to new module on aliexpress etc, that uses a new pinout.Also a little bit smaller, for saving board space.
Audio ESP8266 Arduino
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Loudspeaker Testing Jiq
Sparrow Jun 02,2025
Features and Specifications- Measures loudspeaker driver frequency and phase responses- Measures loudspeaker relative SPL (absolute SPL possible with external calibration sources)- Time alignment of loudspeaker drivers in combination with an oscilloscope- Measures the impedance of loudspeakers, crossover networks- Measures the value of capacitors, inductors (pH to mH range) and resistors - Incorporates a microphone preamplifier and small power amp- Frequency range: 1 0Hz to 20kHz (depending...
538
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ISA PC SPEAKER DRIVER
Videogames & Computing Jan 30,2025
ORIGINAL WEBSITE: https://www.alexandrugroza.ro/microelectronics/system-design/isa-pc-speaker-driver/index.htmlPlease review the attached link, it has all the documentation and help possible to assemble this project.
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DIY Meshtastic Using ESP32 : Build Your Own Private Off-Grid Network
Project OverviewThis project delivers a complete, custom-designed PCB solution for building Meshtastic mesh network nodes. Unlike traditional communication methods that rely on cellular towers or Wi-F...
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