3D rotating bare metal porting based on H7 (800x480)

Ported the 3D rotation + meteor shower background demo to H7, and the pure rendering is very smooth.

Schematic PCB

pmod-gnss：GNSS PMOD、GPS + Glonass

This design is a PMOD with the ublox NEO GNSS receiver footprint. Able to receive GPS and GLONASS simultaneously.

Schematic PCB

icebreaker++: icebreaker FPGA board, upgraded ECP5

icebreaker++ is a very nice and convenient little board. But it has a small flaw, the ice40 FPGA it uses is very simple, and it's generally fun to see people doing exciting projects with 5k LUTs. Sometimes it's convenient to have some extra space available when experimenting.

Schematic PCB

CA-53W calculator watch

This computing watch is designed using the SAML22 ARM microcontroller. This particular microcontroller has a segmented LCD controller capable of driving the LCD used inside the watch.

Schematic PCB

Mega-Cube: Light cube with 4096 RGB LEDs based on NXP i.MXRT1060

Mega-Cube is a light cube that drives 4096 LEDs based on PL9823. The main control is Teensy4.0 based on NXP i.MXRT1060 FlexIO function and many 595 shift registers. It can control up to 32 channels, each channel 1000 LED.

Schematic PCB

Open Source Electromyography EMG Project

In the open source electromyography project shared here, the author used this product to create a computer game control effect.

Schematic PCB

An open source project to recreate classic Casio watches

The Sensor Watch is unlike most smartwatches.

Schematic PCB

MAXREFDES1263: True Wireless Stereo Stand and Earbuds

The MAXREFDES1263 is a reference design for the TWS (True Wireless Stereo) application base.

Schematic PCB

A smart watch design with all open source software and hardware

Hardware configuration: Dialog Semiconductor DA14683 for master control, with BLE5.0

Schematic PCB

Super cool face-changing mask DIY

The product design is open source and very cool and beautiful.

Schematic PCB

Headphone charging compartment schematic design

The schematic diagram of the charging box, the basic functions are as follows: 1. Charge the battery inside the charging box 2. The charging box charges the earphones 3. The charging box communicates with the earphones

Schematic PCB

DeepLabCut: Marker-free pose estimation for animals performing various tasks

Label-free pose estimation from user-defined features via deep learning for all animals

Schematic PCB

Computer vision tool GluonCV: recognition, detection, segmentation, pose

CluonCV provides an implementation of state-of-the-art (SOTA) deep learning models in computer vision. It is designed for engineers, researchers and students to quickly prototype products and research ideas based on these models.

Schematic PCB

AlphaPose-real-time full-body multi-person pose estimation and tracking system

It is the first open source system to achieve 70+ mAP (75 mAP) on the COCO dataset and 80+ mAP (82.1 mAP) on the MPII dataset. To match poses corresponding to the same person in frames, an efficient online pose tracker called Pose Flow is also provided. It is the first open source online pose tracker to achieve 60+ mAP (66.5 mAP) and 50+ MOTA (58.3 MOTA) on the PoseTrack Challenge dataset. AlphaPose supports Linux and Windows.

Schematic PCB

Lu Feikui, Qinheng RISC-V smart bracelet

It adopts Qinheng's self-developed RISC-V microprocessor "Highland Barley V4" and integrates 2Mbps low-power Bluetooth on the chip. It is equipped with a blood oxygen and heart rate module, a nine-axis sensor, a motor drive module, a low-power touch detection module and a 0.96-inch high-definition IPS display to meet the application needs of general bracelets.

Schematic PCB

DI-140 - 10W adapter for portable audio players with latching overvoltage and thermal shutdown protection

10 W Adapter for Portable Audio Players with Latching Overvoltage and Over-Temperature Shutdown Protection

Schematic PCB

DI-143 - High-efficiency inkjet power supply delivers up to 80 watts of peak power

High Effi ciency Inkjet Power Supply Provides up to 80 Watts of Peak Power

Schematic PCB

DI-182 - Energy Star 2.0 (ES 2.0) compliant 65W laptop adapter

7 W Wide-Range Input, Dual Output, Non-Isolated Flyback Converter Using LinkSwitch-XT2 900 V (LNK3696P)

Schematic PCB

RDR-736 - 7W wide-range input, dual output, non-isolated flyback converter using LinkSwitch-XT2 900 V

7 W Wide-Range Input, Dual Output, Non-Isolated Flyback Converter Using LinkSwitch-XT2 900 V (LNK3696P)

Schematic PCB

RDR-737 - 1.44W non-isolated buck converter using LinkSwitch-TN2 900V

1.44 W Non-Isolated Buck Converter Using LinkSwitch-TN2 900 V (LNK3294G/P)

Schematic PCB