USB audio headset design reference circuit diagram

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Three-axis MEMS accelerometer - Xiaomi smart bracelet design

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Open source smart bracelet project reference solution based on NRF51822

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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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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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Tildagon: EMF reusable electronic badge, beyond 2024

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Gaming Headset

Single coil wireless charging solution

The 65W single-coil wireless power solution includes controller, software and hardware, all documented and fully tested, enabling rapid transition from prototype to production. Scalable form factors and parameters support a wide range of use cases and applications such as electric scooters, fixed wireless access outdoor units, vacuum cleaners, power tools, drones and more.

15 W LDO Wireless Charging Receiver Reference Design

15 W Buck Wireless Charging Receiver Reference Design

High voltage wireless charging receiver

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BLE based voice solution

NavQPlus AI/ML supporting computer EVK, suitable for mobile robots, ROS, ground stations and cameras

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OrangeBox Automotive Connectivity Domain Controller Development Platform

OrangeBox is a comprehensive development platform that provides a wide range of secure wireless connectivity to develop automotive solutions that meet the requirements of connected domain or zone controllers. OrangeBox integrates a scalable i.MX 8XLite applications processor, S32K security co-processor and the wireless connectivity required to enable secure automotive access, V2X, Wi-Fi, Bluetooth® LE, UWB and cellular connectivity between the vehicle and the outside world In a safe and secure manner.

OpenEarable open source in-ear wireless headphones (finished version)

OpenEarable aims to enable ear-based sensing applications by providing a flexible open source hardware platform. It integrates a range of sensors, including a 9-axis inertial measurement unit, ear canal pressure and temperature sensors, inward-facing ultrasound microphone, speakers, buttons and controllable RGB LEDs. With these capabilities, OpenEarable provides researchers and developers with the ability to explore a variety of application scenarios.

OpenEarable controls and transmits sensor data via BLE (Bluetooth Low Energy). Audio is played from or recorded to the internal SD card. OpenEarable is compatible with the provided dashboard and Edge-ml.

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2020 Electronic Competition Question A-Wireless Motion Sensor Node Design (Dalian University of Technology)

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2020 Electronic Competition Question A-Wireless Motion Sensor Node Design (East China Jiaotong University Institute of Technology)

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Automatic clock-in and walking timing system based on face recognition (K210, nRF52832)

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Flexible PCB with three buttons

1 Layers PCB 11 x 48 mm Polyimide Flex, 0.1 mm, 1, Immersion gold (ENIG), Yellow Solder Mask, White silkscreen;

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Portable wireless touch remote control

A tiny potable remote that can be customized to do different tasks using touch functionalities of ESP32

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