Distributed greenhouse management system based on stm32

This design mainly explains the circuit and software design of the node equipment, coordinator equipment and gateway equipment in the greenhouse, completes the front-end and back-end interaction between the web page and the WeChat applet, and completes the data transmission test and communication distance test.

Schematic PCB

the-little-bili-tv: Bilibili little TV based on ESP32

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.

Schematic PCB

Flipper Zero: an open source geek multi-function tool based on STM32W55B

Flipper Zero is a portable multi-tool designed for developers and geeks with a toy-like body. It enjoys exploring digital content such as radio protocols, access control systems, hardware, and more. It's completely open source and customizable, so you can extend it in any way you like.

Schematic PCB

syzygy-txr-breakout: SYZYGY TXR4 to SMA connector

All 12 I/O pins of this design are broken out to 0.1" headers. All 4 TX/RX channels and the reference clock are broken out to SMA connections.

Schematic PCB

syzygy-sgmii: Breakout board for SGMII Gigabit Ethernet PHY DP83867C

This design is a breakout board for SGMII Gigabit Ethernet PHY DP83867C. It connects to SERDES via a SYZYGY-TXR connector to test and evaluate Ethernet over 1.25Gbps serial channels. 2 channels are used and CDR is required on the RX path. Compared to RGMII, SGMII significantly reduces the number of signals required for routing.

Schematic PCB

syzygy-rgb888-lcd: 5 paired with Sipeed Tang Nano

​Connect to a 5" LCD paired with a Sipeed Tang Nano. This is an 800x480 LCD with RGB888 connections. All 8 bits of each channel are connected via SYZYGY connectors.

Schematic PCB

syzygy-flir-tau2: Tau2 LWIR core plug-in for SYZYGY FLIR

This design is a plug-in from FLIR's Tau2 LWIR core. Both the LVDS and CMOS channels are connected to the UART configuration channel through the SYZYGY connector.

Schematic PCB

syzygy-flir-boson: SYZYGY boson LWIR core

Plug-in for FLIR's boson LWIR kernel. The 24-bit CMOS channel is connected through the SYZYGY connector along with the UART configuration channel.​

Schematic PCB

ElectronBot: A movable computer accessory, a cute and tough desktop robot (newly produced by Zhihui Jun)

The project is a small desktop-level robot tool that can be used to help you control your computer, etc. Its functions can be defined by you. The inspiration for the appearance design is EVE in WALL-E~ The robot has a USB communication display screen function, has 6 degrees of freedom (one roll and pitch for the hand, one for the neck, and one for the waist), and uses its own modified special servo to support the joints Angle return.

Schematic PCB

Based on STM32H747, Arduino® Nicla vision development board schematic

Arduino® Nicla Vision is a ready-to-use standalone camera for analyzing and processing images at the edge. It's suitable for asset tracking, object recognition and predictive maintenance thanks to its 2MP color camera, smart 6-axis motion sensor, integrated microphone and distance sensor. Quickly implement sensor nodes that send collected data to the Arduino® Cloud (or third-party vendor service) via integrated WiFi/BLE connectivity.

Schematic PCB

Dual channel signal generator, manual welding

High reference value, the 50-year-old work of FatFS author ChaN

Schematic PCB

Resonance: Resonance plug-in board for card10 to add video output

The board of this design is intended to sit between the fundamental and harmonic boards and monitor the SPI data running to the display. Onboard ECP5 will mirror the display and output a copy to a digital monitor.​

Schematic PCB

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

hdmi-si: HDMI breakout board

Simple branching of HDMI cable signals for analysis/verification of signal level and phase.

Schematic PCB

esp32s2-lepton: ESP32s2 thermal imager

​ESP32s2 Thermal Imager=ESP32s2 + Lepton 3.5 + Battery charger + 240x240 pixel LCD

Schematic PCB

ESP32s2 CO2 Monitor

ESP32s2 CO2 Monitor=ESP32s2 + Sharp memory LCD + CO2 Monitor

Schematic PCB

ESP32-breakout：ESP32S2 + Sharp memory LCD + prototyping area

ESP32S2 + Sharp memory LCD + prototyping area

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

ATmega-Soldering-Station: Mature T12 soldering station controller

This project includes all the software and hardware design required to develop the T12 soldering station. The PID parameters are mature and the function completion is very high.

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