LPC-Link 2 is an extensible, stand-alone hardware debugger that can be configured to support a variety of development tools and IDEs using a variety of downloadable firmware. Additionally, it serves as an evaluation board in its own right for evaluating NXPLPC4370 triple-core MCU. Combined with the Embedded Artists add-on board, it can be used as an oscilloscope or logic analyzer!
Electronic clock module schematic diagram + PCB diagram (2012 version), if you are interested, you can download it and take a look.
This power module generates all the voltages required to power the Class D audio amplifier. The main output voltage is 36V, which provides 200W of continuous power and 540W of peak power. The first stage is a power factor correction boost. The flyback converter provides 12V on the primary side and 12V (300mA) and 3.3V (200mA) on the secondary side. Using a hardware switch and remote input, the converter can enter standby mode: in this state, the 36V output is disabled and 12V, 3.3V are "always on". In this way, the standby power can be reduced to 150mW (115Vac) and 270mW (230Vac). A second digital input switches the main input voltage from 36V to 18V, allowing it to enter a low-current consumption mode when the audio amplifier requires less power.
The system consists of STC89C52 microcontroller, 4*4 matrix keyboard, buzzer, reset circuit and crystal oscillator circuit, relay, etc. The 4*4 keyboard is mainly used for password input and modification, buzzer alarm, reset circuit and crystal oscillator circuit with STC89C52 The single-chip microcomputer constitutes the smallest system of single-chip microcomputer. It has functions such as setting and modifying 6-digit user passwords, alarming for incorrect input, and alarming for incorrect passwords. This system is low in cost and practical in function.
With TMS320F28033 as the core, it is composed of signal amplification circuit, signal acquisition circuit, data storage and processing module, system control and display module and other parts.
High reference value, the 50-year-old work of FatFS author ChaN
This Bilibili small TV uses esp32 as the main control, lvgl GUI interface design, and is developed based on idf4.0 to support smartconfig or WeChat airkiss distribution. Its functions include: network connection display, network acquisition time, weather display, temperature and humidity collection, Fan count display, mqtt temperature and humidity upload, etc. All software and hardware are open source.
This document details the Riverside (MAXREFDES8#) subsystem reference design, a 3.3V input, 12V (15V) output isolated power supply. The Riverside reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and one wide input range and adjustable output low dropout (LDO) linear regulator. Test results and hardware files are included.
This project started with STM32F1 and now it uses STM32F3.
The system uses TI's MSP430F149 microcontroller as the core controller. This microcontroller has a 16-bit CPU integrated register and constant generator, which can maximize the code efficiency of the microcontroller. It integrates JTAG and supports online programming; two universal full-duplex Serial synchronous/asynchronous communication interface; PWM control output; external interrupt input interface. The microcontroller is responsible for sampling the bus door opening and closing signals, turning on or off the infrared counting module, recording the number of people getting on and off at each bus stop, storing the data on the number of people getting on and off at each bus stop, and transmitting the stored data to the computer.
STM32F072 Type-C Port Manager Evaluation Board with ON Semiconductor FUSB307B Type-C Port Controller
The USB Type-C™ Audio Adapter Accessory Mode Reference Design provides a solution for transmitting analog audio over the USB Type-C interface. This reference design demonstrates how to use the USB Type-C standard audio adapter accessory mode to transmit analog audio to system peripherals while still transmitting USB data through the same USB Type-C connector.
Based on ESP32 and ATtiny861 to build a Nintendo NES game emulator handheld console with complete materials for making the project
Protues simulation example (8051)-PCF8574 application.rar
Grapevines use a lot of water and the soil dries out quickly, so they need to be watered twice a day. This project is about using an unmanned watering system to water flower pots.
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.
The STM32 Nucleo-64 board provides an affordable and flexible way for users to try out new concepts and build prototypes by choosing from the various combinations of performance and power consumption features, provided by the STM32 microcontroller.
Use an idle Android phone to place it on a drone or unmanned vehicle/boat to realize wifi, 4G, 5G remote control of the drone, image transmission/data transmission/remote control integration. Supports APM and Pixhawk flight control (as long as it is compatible with Mavlink protocol), supports RTK differential GPS high-precision positioning (optional function, requires ublox NEO-M8P GPS module and Qianxun FindCM service account).
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