Battery-free mini game console (open source software and hardware)

The most interesting part is the problem of energy collection without batteries. Currently, it provides energy collection by clicking buttons and solar energy collection. Ambiq Apollo3 for main control.

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Arduino UNO Mini Limited Edition Open Source Information

Open source material for the Arduino UNO Mini Limited Edition.

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SwarmDrive: Development board for motor experiments based on ESP32

SwarmDrive based on ESP32 has rich teaching documents, professionals and students can use it to easily learn various commutation algorithms and related knowledge of BLDC motors.

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High performance open source server ODrive

ODrive is a high-performance FOC servo driver based on STM32. It can drive two brushless motors at the same time. In the early days, it was widely used in the design of 3D printers or homemade CNC lathe electrical systems. The well-known geek James Bruton used it as most of his own To make the core unit of the robot servo drive, Stanford's previous open source 8-degree-of-freedom quadruped robot Doggo also used Odrive as the core driver.

Schematic PCB

Lazy self-care fish tank control system

The lazy self-care fish tank control system is mainly aimed at fish farming enthusiasts. As long as you use your mobile phone through BLE, you can manually control the start, stop, and feeding of the fish tank's electrical appliances. At the same time, the real-time time, supplementary lighting time, automatic feeding time, water temperature monitoring and alarm, etc. can be set through the APP at once. Enthusiasts are only responsible for watching and appreciating the fish, and the other things are left to the control system!

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51 microcontroller to make alarm clock

Use the Android cable to connect the voice chip and connect it to the computer. At this time, there is a removable disk on the computer, and then put the sound file into the removable disk... Materials used: Voice playback module Yabo 51 microcontroller (refer to this microcontroller The digital tube and the 8 free IO ports can be used) 3 10k resistors... Put the sound file into the voice chip and connect the data line and power line to the microcontroller. Use the keil tool to generate the hex file from the c program. And write it into the microcontroller...

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Esai source code pure electric vehicle motor drive and vehicle control system based on DSP and bidirectional Z-source inverter

This project applies the bidirectional Z-source inverter to the motor drive system of pure electric vehicles. Using TMS320F2808 DSP as the control core, the SVPWM control technology based on the Z-source inverter is implemented.

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Complex robotic arm drawings

A complete collection of complex robotic arm drawings, including Fanuc 100iB

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Protues simulation example (8051)-parallel port to serial port.rar

Protues simulation example (8051)-parallel port to serial port

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Protues simulation example (8051)-SPI demonstration file two 595 docking

Protues simulation example (8051)-SPI demonstration file two 595 docking

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Protues simulation example (8051)-PWM test

Protues simulation example (8051)-PWM test

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Protues simulation example (8051)-PWM wave output (adjustable)

Protues simulation example (8051)-PWM wave output (adjustable)

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Proceedings of the Electronic Design Competition

The collection of papers from previous electronic design competitions includes design ideas, circuit diagrams and corresponding program flow charts for function signal generators, oscilloscopes, automatically controlled balancing cars, radios, etc.

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Triggered voice time reporting system and voice recognition circuit

The system developed in this article is based on the existing triggered voice time reporting system, adding a speech recognition circuit, so that the developed system can have the function of dialogue response time reporting, and realize the truly automated and intelligent voice time reporting.

Schematic PCB