https://sudonull.com/capacitance-meter-on-atmega8-schematic-and-code
Building a device for measuring C capacitors using RC charging method. Schematics, PCB in EasyEDA, AVR code, Kompas 3D case. For middle/senior embedded developers.
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https://sudonull.com/binaural-sound-from-stereo-schematic-and-implementation
Set up your stereo system for immersive binaural sound without headphones. Schematics, MK-233 microphones, adaptation for cinema. Instructions for audio developers — test it yourself.
https://sudonull.com/weather-station-atmega328-nrf24l01-schematics-and-code
Breakdown of weather station on Atmega328 with NRF24L01: flicker filters, rain forecast by BMP280, RGB backlight. Schematics, code, design errors. For developers.
https://sudonull.com/oneplus-100w-gan-teardown-schematics-and-chips
Detailed teardown of OnePlus SuperVOOC 100W charger: GaN Navitas NV6134C, Southchip controllers, EMI filters. For engineers — PCBA topology and components. Study the 100W implementation.
https://sudonull.com/esp32-s3-internet-radio-code-and-schematic
Assemble internet radio on ESP32-S3 with UDA1334 and OLED. Full code, I2S connection, web interface. For middle/senior IoT developers.
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