Throwing Star LAN Tap Butterfly

Introduction: Network packet capture tool

[Hongmeng Internet of Things] Light-on reminder device based on Hongmeng HI3861

Introduction: The light-turning reminder device based on Hongmeng HI3861 has a built-in OLED 0.96-inch I2C interface that can display information and indicate the ambient light intensity through a photoresistor, so as to remind people to turn on the lights through the display screen when it gets dark.

Schematic PCB

【Training Camp】Magic Sketchpad Little Bell

Introduction: It is developed based on the OpenHarmony open source Hongmeng system. The chip used is hi3861, which supports 16-channel servo control, GPIO, ADC, PWM and other operations.

Schematic PCB

RTL8188_USB WIFI network card

Introduction: Disassemble the RTL8188EUS module to DIY USB network card, and test it to be stable after long-term work.

Schematic PCB

FT232RL verification module

Introduction: USB to serial port chip FT232 verification board

Schematic PCB

USB data cable tester

Introduction: The first low-invasive PCB in 2022, used to test whether various USB cables are broken.

Schematic PCB

ESP-C3 core board

Introduction: Based on the core development board of ESP32-C3, the overall board uses a 4-layer board.

Schematic PCB

ESP8266 Creative 8-digit Clock

Introduction: ESP8266+TM1628 8-digit LED clock split design, in order to understand everything, the display board is 10*10 and the driver board is 15*4. Both can be used.

Schematic PCB

ESP8266 Network Weather Clock Dot Matrix Version

Introduction: Using esp8266 to drive three max7219, three dot matrix, one 128x64 OLED, and one PCF8563M, you can get the weather and automatically adjust the time.

Schematic PCB

[Internet of Things] Hongmeng Smart WiFi Switch +4239667A

Introduction: Using Hongmeng Hi3861 chip to realize WiFi remote control of physical switches

Schematic PCB

[Internet of Things] Hongmeng Light Turning Magic Device +1162410A

Introduction: Smart IoT switch light artifact based on Hongmeng

Schematic PCB

GL823K TF (Micro SD) card reader

Introduction: A Micro SD TF card reader based on GL823K (USB2.0)

Schematic PCB

M2 1216 wireless network card to MINIPCI-e

Introduction: Many thin and light wireless network cards use welded M2-1216 packages, which makes it possible to obtain used such network cards relatively cheaply. Today, when many network cards are out of stock and the price has skyrocketed, adapter boards can be used for waste recycling.

M2 1216 wireless network card to PCI-e

Introduction: Many thin and light wireless network cards use welded M2-1216 packages, which makes it possible to obtain used such network cards relatively cheaply. Today, when many network cards are out of stock and the price has skyrocketed, adapter boards can be used for waste recycling.

Schematic PCB

[Internet of Things] Hongmeng Smart Wife Switch +1600798A

Introduction: Use Hongmeng HS3861 chip combined with a servo to realize wife remote control of physical switches in homes or dormitories.

Schematic PCB

RJ45 network cable docking

Introduction: RJ45 network cable docking extension straight-through

Schematic PCB

STC15ESP8266

Introduction: Use STC15F2K60S2 to create an IoT development board, suitable for learning the basic IoT functions of ESP8266

Schematic PCB

stm32f103c6t6 minimum system board

Introduction: Use a microphone to amplify the collected sound signal, then use stm32f103c6t6 to perform FFT transformation on the collected signal, and then display the spectrum through a 0.96-inch OLED graphic with IIC protocol

Schematic PCB

esp8266 weather clock

Introduction: When I was learning rhythmic light strips, I bought an esp8266 development board and a 1.44-inch tft screen. They have been idle, so I learned to make a weather clock that became popular online. At the same time, for portability, it is made into a rechargeable version (typec charging)

Schematic PCB

[Internet of Things] Hongmeng wifi switch

Introduction: Use the hi3861 chip module combined with the wifi switch of the servo to realize the remote wifi on and off switch of the home physical switch.

Schematic PCB