Sensorless sine wave drive application solution based on MM32SPIN motor/power supply chip - handheld vacuum cleaner

This article briefly introduces the application example of sensorless sine wave drive technology based on MM32SPIN25 in "handheld vacuum cleaner".

CLRC663 + and QN902x NFC-Bluetooth ^® Low Energy Solutions for Consumer Electronics Applications

Bluetooth ^® Low Energy-NFC-v2.0 is an NFC expansion board for QN9020DK and an extensible QN9020 application development platform. This NFC expansion board is based on CLRC663+, a high-performance multi-protocol NFC front-end.

PTN3816EVM: DisplayPort Linear Redriver Evaluation Board for the PNT3816

syzygy-dual-atto320: SYZYGY to dual Atto320 LWIR sensor

SYZYGY is an FPGA extension standard for medium to high speed interfaces. This design is a breakout board for connecting dual Atto320 LWIR sensors. Designed to mate with existing sensor breakout boards that provide FFC connectivity.

Schematic PCB

100 W automotive preregulator, non-isolated, synchronous buck reference design based on NCV881930

30 W Automotive 410 kHz Preregulator, Non-Isolated, Synchronous Buck Reference Design Based on NCV881930

Bluetooth power amplifier board based on TPA3110

Using TPA3110 digital power amplifier chip, the power can reach 15W, and there are two power interfaces. The Bluetooth part uses bk8000L finished module, which has good performance and affordable price. Supports button playback and pause, track switching, volume adjustment, and also supports external audio line input and microphone input. After testing the finished product, the sound quality is good, the Bluetooth connection is relatively stable, the button functions are normal, the external audio line input is normal, and the microphone calls are normal. A complete AD project file is provided, which can be modified as needed, and the BOM needs to be exported by yourself.

Schematic PCB

Protues simulation example (8051) - playing music

Protues simulation example (8051) - playing music

Schematic PCB

syzygy-breakout: Breakout board for standard SYZYGY connectors

SYZYGY is an FPGA extension standard for medium to high speed interfaces. This design breaks out all 32 I/O pins into taps with 0.1" headers. A small prototyping area is also provided.​

Schematic PCB

Laptop camera face recognition program

Open the laptop's built-in camera through matlab and detect faces.

Schematic PCB

BitNetMCU: Implementing MNIST handwritten digit recognition on the CH32V003 RISC-V MCU

Schematic PCB

Graduation project based on 51 microcontroller 8-key electronic keyboard design (schematic diagram, source program, etc.)

AT89C52 microcontroller is used as the core control component to design an electronic keyboard. The microcontroller is used as the main control core, and it forms the core main control module together with the keyboard speaker and other modules. The main control module is equipped with 8 buttons and a reset button.

Schematic PCB

USB-KW019032: Packet Sniffer/USB Dongle Development Board for Kinetis KW0x

Schematic PCB

Super cool face-changing mask DIY

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

Schematic PCB

Four-channel radio remote control schematic diagram

Four-channel radio remote control schematic diagram

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

Design and implementation of MP3 player based on STM32 (MDK complete source code provided)

A design example of implementing a simple MP3 Player using an STM32 processor. This comprehensive application example helps readers understand the applications of STM32, SPI interface, SD card, TIMER, interrupts, FAT file system, USB, etc.

Schematic PCB

Digital photo frame source code (AT76C120+CT956)

Digital photo frame source code (AT76C120+CT956)

Schematic PCB

Universal Serial Bus Port Management Controller Solution USB Type-C PD 3.0 Fast Charging

This solution includes USB Type-C® PD 3.0 hardware layer driver and software protocol stack for developing USB PD applications. The M032 series acts as a universal serial bus port manager, and the NCT3807 is a port controller. Its software stack supports the USB-IF Association's power supply/charging specifications. This solution supports dual-port applications, and Nuvoton has extensive experience in USB Type-C® PD 3.0 product design.

ESP32Picoremote: ESP32 WiFi remote control with TFT display, mini TV, capable of playing GIFs

The WiFi remote control is based on ESP32 Pico D4 MCU and 160x80 pixel mini TFT display. Additionally, there are onboard I2C temperature and humidity sensors and an accelerometer.

Schematic PCB