Quad-rotor aircraft electronic control program_can make the quad-rotor aircraft hover stably

Foreign quadcopter codes

Schematic PCB

20 ink screen daisy chain gameplay

Created a daisy chain through the serial port

Schematic PCB

Intelligent atmospheric corrosion monitor circuit schematic + PCB source file

This intelligent atmospheric environment and corrosive monitoring platform integrates hardware, software, and network. With the stable performance IACM-321 platform system as the core, it realizes multi-level dynamic networking and remote status monitoring. It can be monitored in the monitoring/operation and maintenance center. The front-end system provides centralized monitoring and unified management, and uses customized intelligent terminals to achieve mobile monitoring. Convenient Click connect sensor interface, easy to install on smart terminals.

Schematic PCB

Open source DIY: WiFi, 4G, 5G remote control drones/unmanned ships, image transmission/data transmission/remote control integration!

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).

Schematic PCB

Lubricating oil detection based on dielectric principle

This design uses LM3S811 as the processor of the lubricating oil dielectric constant detection device, designs the AD5933 impedance measurement circuit, extracts capacitive reactance information from the impedance data, and calculates the change in the lubricating oil dielectric constant based on the change in capacitance to achieve lubrication control. Test the dielectric constant of oil and record the data to find out the change pattern between lubricating oil quality and dielectric constant.

Schematic PCB

E-sport source code self-learning maze-walking smart car

The self-learning maze walking car can work in two modes.

Schematic PCB

LibreTimeBase: Rubidium clock control board

Schematic PCB

Two-degree-of-freedom pan-tilt robot control platform

This work, titled "Two Degrees of Freedom Pan-Tilt Robot Control Platform", implements a complete pan-tilt robot control platform. The system uses motion sensors as control handles to control the movement of the robot, and cooperates with the OLED screen to display the system's Current status. Using the control handle, you can control the movement of the vertical axis servo through forward and backward movements, and control the movement of the horizontal axis servo through rotation operations, thereby realizing two degrees of freedom control of the robot.

Schematic PCB

2021 College Student Electronic Design Competition Topic C Outstanding Works Collection (Three-Port DC-DC Converter)

Schematic PCB

Boston Dynamics Big Dog’s quadruped robot, open source BLDC motor controller MOTEUS (upgraded version, including firmware, PCB, etc.)

Both software and hardware are fully open source. The control board is designed based on STM32G4. This upgrade adds a flexible I/O subsystem and expands the types of feedback encoders and peripherals that the controller can receive.

Schematic PCB

Mock Badge for the 2023 Hackaday Competition (Open Source)

This year, Supercon badges become analog badges! (Or at least pretend to be pretty convincing.) Taking inspiration from the fluorescent oscilloscopes of the past, the 2023 Vectorscope badge is part analog audio playground, part art project, and all about prototyping. Who doesn't love the warm glow and lovely green fluorescence of an old Tektronix tube scope?

Schematic PCB

Bluetooth protocol analysis tool nRF52840 MDK USB Dongle

The nRF52840 MDK USB Dongle is a small, low-cost development platform implemented by the nRF52840 multi-protocol SoC in a convenient USB Dongle form factor.

Schematic PCB

Epidemic development monitor based on ESP8266

Alan Wang, a maker from Taiwan, used the MAX7219 LED module, the ESP8266-based D1 micro development board and MicroPython to develop a small tool that can update COVID-19 data in various countries in real time.

Schematic PCB

Graduation project based on the design of automatic flower watering system based on 51 microcontroller (including schematic diagram, source program, thesis, etc.)

Contains all design information

Schematic PCB

TDS water quality test pen schematic diagram, PCB and BOM

If you are interested, you can take a look or download the schematic diagram and BOM table of the tds detection pen.

Schematic PCB

Graduation project based on 51 microcontroller electronic scale design materials (schematics, source programs, papers, etc.)

Contains all design information

Schematic PCB

Particulate pollution measurement based on ESP-32

Israeli network engineer Nir Huri invented an air pollution monitoring device based on ESP-32.

Schematic PCB

2020 E-Contest Question E-Amplifier Nonlinear Distortion Research Device (Dalian University of Technology)

Schematic PCB

Spark Analyzer: open source wireless USB PD power supply with power consumption analysis

Spark Analyzer is fully compatible with USB-C PD, ensuring compatibility with a wide range of devices and applications. Precisely control voltage levels to meet your project needs. Switches to 5V, 9V, 15V and 20V to accurately measure the current draw of your project. Understand your power needs and optimize accordingly.

Schematic PCB

Design based on STM32 imitation Mitsubishi PLC (program + circuit diagram)

Based on STM32 imitation Mitsubishi PLC design, including program and circuit diagram

Schematic PCB