DIY Portable 1.8V Power Supply (Reference Design)

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Open source smart bracelet project reference solution based on NRF51822

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[Open Source] PCB Reference Materials Sharing for EDA-TPA3116

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Arduino Pro Mini 328 based washing machine timer reference

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[Open Source] Using ESP32C3 to make a mini quadruped robot

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[Open Source] STM32G071CBT6 Minimum System Board Development Board

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Raspberry Pi development board optimization design

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OpenGlass: AI glasses based on ESP32S3, costing more than 100 yuan to copy

​You can record your life anytime and anywhere, remember people's names, calculate food calories, translate in real time, and have intelligent conversations...

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12 V, 150 W power supply based on the STNRG011 digital combo and SRK2001 adaptive synchronous rectification controller

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Schematic diagram of Bluetooth card reader small speaker

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Stereo development solution based on Amazon AVS smart speaker microphone array

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Apple dedicated storage USB flash drive reference design

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Commonly used circuits in subwoofers

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Freescale's MKM14Z64-based smart socket reference design

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High-quality Bluetooth speaker design reference

Although the common Bluetooth speakers on the market are relatively cheap, their sound quality is far from satisfactory and cannot meet people's pursuit of high-quality sound. The fundamental reason is that the Bluetooth speaker box is too small and the speaker is too small, resulting in a serious lack of bass; the resonance of the plastic box causes muddy sound; the speaker is too close and the near-field sound is too narrow, etc. This design reference integrates the MaxxAudio sound enhancement chip NPCA110P, which greatly improves the problems of muddy sound, insufficient bass, and narrow near-field sound.

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[Open Source Project] Voice Recognition Controlled AI Night Light Based on ESP32

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HealthyPi Move: Open source, smart health watch that is as good as professional ones

Supports continuous or intermittent monitoring of important biometric signals such as ECG, heart rate, HRV, PPG, SpO₂, blood pressure trend and respiration. It integrates daily use and advanced research applications.

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Open source calculator CG-35, RPN calculator similar to HP-35

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Magnetic levitation system based on STM32F407

Support revolution, fixed height, side floating

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Wee Noise Makers PGB-1: Open Source Audio Synthesizer

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