[Open Source Materials for Competition] Electromagnetic Gun Circuit Diagram Design Materials

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DSCope portable open source oscilloscope circuit design project source file based on FPGA design

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[Open Source] Design of a Bluetooth-controlled car system based on STM32

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Flight control remote controller circuit scheme based on STM32 design (schematic diagram + pcb + source code)

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DDR2 design

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Design of multi-channel stepper motor drive circuit based on STM32

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CANBoard: A simple IO expansion board that supports CAN bus, suitable for steering wheels/button boxes/control panels, etc.

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Design of air environment monitoring system based on ZIGBEE (Graduation Project)

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Commonly used circuits in subwoofers

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Allwinner V3S reference solution is free and open source (PCB + schematic)

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Stereo development solution based on Amazon AVS smart speaker microphone array

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Dream Maker 3D Printer Mainboard Reference Schematic

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Design of digital oscilloscope based on STM32 (complete design information)

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FPGA Signal Generator Schematic Design Reference

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RGB Sudoku Game Based on PSoC 6 BLE (Schematic + Code)

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Four-axis aerial photography aircraft circuit scheme is free and open source

Four-axis drone based on STM32. With STM32 as the control core, four-axis aircraft as the carrier, and gimbal as the aerial photography system. The hardware consists of flight control circuit, power management, communication module, power system, frame, and gimbal servo system. The algorithm uses simple and stable quaternion plus complementary filtering as the attitude solution algorithm, and PID as the controller to realize flight, gimbal stabilization and other functions. It has the characteristics of flexibility, lightness, ductility, and good adaptability.

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Freescale's MKM14Z64-based smart socket reference design

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4A CNC regulated power supply reference design (schematic diagram + program)

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Multi-axis intelligent aircraft solution based on NXP (LPC4078&JN5168)

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Microchip Passive Keyless Entry (PKE) Reference Design

The manual describes a passive keyless entry (PKE) system upgrade for existing remote keyless entry (RKE) applications. The key design includes a PIC16F639 microcontroller with an integrated three-axis analog front-end (AFE). A PIC18F2680 microcontroller is used to implement the low-frequency transmitter.

Schematic PCB