[Internet of Things] Hongmeng Smart WIFI Switch

Introduction: About Hongmeng’s smart IoT wifi switch artifact

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Smart AI night light

Introduction: Intelligent voice light based on CI-C22GS02S

Brushless DC motor driver board QC-DRV-NN_V2.0

Introduction: V2.0 version of the previous open source project, brushless DC motor driver board/power board. This board is for learning and communication only. Not surprisingly, this is the final version.

Schematic PCB

Brushless DC motor driver board QC-DRV-NN_V1.0

Introduction: Brushless DC motor driver board uses NMOS for both upper and lower bridges. It does not integrate MCU main control. It uses ST official standard motor interface and supports inductive Hall, non-inductive square wave, and FOC vector control. As of 20220216, the version is V1.0. This board is for learning and communication only.

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[Internet of Things] Wireless switch based on Hi3861 mqtt protocol

Introduction: Use hi3861 to access hass through mqtt to control other devices

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Make a PCB copper coin

Introduction: Make a PCB copper coin. . . .

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PCB vernier caliper, direct board printing

Introduction: PCB Vernier Caliper. Jialichuang can directly play the board

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Detective Conan's badge

Introduction: The detective badge in Detective Conan

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BETAFPV BT2.0 Cetus Pro Charging Stand

Introduction: BETAFPV BT2.0 interface Feiji pro Cetus Pro 4.35V charging stand

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Our city is bright with green onions - firecracker igniters

Introduction: The original intention of this project is to obtain a small, rechargeable, and safe firecracker igniter. It will undoubtedly be easier to implement it using the arc method, and more applications can be expanded based on this project. Please like + follow Me!

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PythonIOT-Zero-WiLichee

Introduction: PythonIOT project based on widora mangopi R3 and LicheePi Nano

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PythonIOT-one-WiLichee

Introduction: PythonIOT-Zero’s companion volume—PythonIOT-One

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PythonIot-Grove-UNO

Introduction: Teaching-oriented, Iot project framework based on Armbian and Python language (Jupyter environment)

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Cube-436_mini oscilloscope

Introduction: 60M @ 12bit, 256pit depth mini oscilloscope

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MSP430FR2533 core board

Introduction: Core development board, this is actually msp430, there is no such one in the label classification

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PCB ruler with an adjustable duty cycle PWM circuit

Introduction: Centimeter ruler on the front and mil ruler on the back with 555 adjustable duty cycle PWM output

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CH340 programmer

Introduction: A USB to TTL programmer based on Qinheng's CH340 chip. This project leads to all IO ports for later development of different modules. 3.3V and 5V can be switched through a switch.

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RoverWing: Adafruit Feathe expansion board that makes building complex robots easy

The RoverWing is an expansion board (or "wing", following Adafruit's terminology) for the Adafruit Feather board that provides motor drivers that can handle 6-12 V motors, an inertial motion unit (IMU), and common servos, acoustics, etc. for mobile robots. Connectivity ports for GPS, GPS and other peripherals. Affordable, with powerful Arduino libraries and excellent documentation. It also contains a microcontroller with preloaded firmware to control these peripherals, which communicates with the Feather board using the I²C protocol, thereby freeing up the Feather board's resources for other uses.

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The smallest system to light up LED lights via USB power supply

This project is a minimal system that uses USB power to light up LED lights. After inputting the corresponding program, the flashing of the LED lights can be controlled. This is the first work made by myself. Although the function is single, such a project can be produced It can bring a lot of basic knowledge to beginners and cultivate their interest in creative engineering.

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ART-Pi GPS expansion board

GPS expansion board realizes GPS positioning and 2G network, including battery, charge and discharge circuit, Air800s module, onboard antenna, compatible with industrial control board and multimedia board, and can display positioning map.

Schematic PCB