The PicoCray project connects multiple Raspberry Pi Pico microcontroller modules into a parallel architecture, utilizing the I2C bus to communicate between nodes
The style of enameled wire is as usual, and the craftsmanship is still excellent. The power board designed this time is made of double panels, and a copper-laying design is applied. The insulation layer is laid first and then the copper. If the device on the front needs to be grounded, break the insulation layer and solder it to the copper.
ST has previously launched a board with a static current measurement range of 1nA - 100mA and a dynamic current measurement range of 100nA - 50mA, but it is not open source. This time it’s open source.
A simple oscilloscope made of STC8A8K MCU. The microcontroller uses STC8A8K64S4A12 working at 27MHz. The display uses a 0.96 OLED with a resolution of 128x64. This oscilloscope project is easy to start and covers the necessary measurement functions. Supports normal mode, single mode, and automatic mode. It has trigger mode selection, such as level trigger, and comes with saved settings. Mini-DSO input is single-channel mode, and the second/division size can support a variety of: 500ms, 200ms, 100ms, 50ms, 20ms, 10ms, 5ms, 2ms, 1ms, 500us, 200us, 100us, and the voltage acquisition range is 0 to 30V. The sampling rate can reach 250kHz@100us/div.
This ESP32-based FPV car can stream video over Wi-Fi and only needs a small LiPo battery for power. It can be controlled remotely and accurately through any web browser.
Ultra-simple Hall sensor speed measurement, the value is displayed on the 16x02 LCD display
A stator-side direct power control algorithm based on multi-frequency proportional integral resonant controller
FireAnt is the first third-party development board in the Efinix Trion product family. It provides an easy-to-use development platform for FPGA manufacturers and enthusiasts. Powered by Efinix Trion T8, FireAnt requires only a PC and requires no additional components. Breadboard-friendly design allows applications to be quickly deployed using sensors, peripherals or other interfaces. It is the perfect solution for manufacturers prototyping their projects or for digital design students to quickly learn FPGA development using the new Efinix platform. The power/performance/size advantages of Trion T8 FPGA also make it ideal for edge IoT applications.
Not only is it open source, the author also has a super-detailed record of the design process. The bandwidth of each analog channel is not reduced in order to reduce costs. Each channel has a bandwidth of 350MHz, and higher sampling rate support can be designed in the future. Thunderbolt USB4 interface, speed up to 1GB/s (8Gbps)
HT-Hawk is an open source flight control system suitable for multi-rotor aircraft. It supports four- and six-rotor aircraft. It is an open source autopilot system developed for multi-rotor aircraft enthusiasts. It can achieve attitude stabilization and provide users with excellent performance. Flight experience.
The Pandora McNado smart car based on Rt-Thread is composed of chassis, drive, battery, Bluetooth, APP control, omnidirectional wheels, etc.
“Using the color of the desk lamp to show the growth rate of COVID-19 virus infections in a country or region, the display effect is more intuitive and not as stressful as chart data.”
These demos all use Adafruit's PicoDVI branch, which makes the video framebuffer look like a regular Adafruit_GFX object, which makes drawing very easy.
This article designs a vending machine based on the 80C51 microcontroller produced by INTEL.
ESP32S2 + Sharp memory LCD + prototyping area
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