Mock Badge for the 2023 Hackaday Competition (Open Source)

This year, Supercon badges become analog badges! (Or at least pretend to be pretty convincing.) Taking inspiration from the fluorescent oscilloscopes of the past, the 2023 Vectorscope badge is part analog audio playground, part art project, and all about prototyping. Who doesn't love the warm glow and lovely green fluorescence of an old Tektronix tube scope?

Schematic PCB

Class D Audio Amplifier Reference Design

The 1000W Class D Audio Amplifier Reference Design provides examples of audio amplifiers and push-pull power converters. It runs using the KV1x Tower® Series platform or the k64 Freedom board.​

Schematic PCB

K22 wireless player reference design

Gaming Headset

smart plug

washing machine

Ovens and stoves

Large household appliances

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

Schematic PCB

BLE based voice solution

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.

Schematic PCB

Open source 12-lead portable electrocardiograph

This open source has a complete host computer, slave computer and schematic diagram, as well as a detailed design paper.

Schematic PCB

The early mobile phone system PalmOS was ported to Raspberry Pi RP2040

Schematic PCB

Single-button keyboard based on ESP32-S3 with color screen

Schematic PCB

2018 Electronic Competition Question F-Wireless Microphone Amplification System (Xidian University)

Schematic PCB

2018 Electronic Competition Question F-Wireless Microphone Amplification System (Dalian University of Technology)

Schematic PCB

2018 Electronic Competition Question F-Wireless Microphone Amplification System (Harbin Engineering University)

Schematic PCB