desktop electric fan

Introduction: Desktop electric fan, controlled by an STC15W408AS

Schematic PCB

Electric screwdriver v2

Introduction: Electric screwdriver, planetary gear version, with STC15W404AS chip

Schematic PCB

Measuring rotational speed - infrared

Introduction: Use infrared receiver to measure motor speed

Schematic PCB

STC8A8K64D4

Introduction: STC8A8K64D4 microcontroller minimum system

Schematic PCB

STM32F103RXT6

Introduction: STM32F103RET6

Schematic PCB

Geiger counter

Introduction: Simple Geiger Counter

Schematic PCB

3D printer screen OLED controller (mini12864)

Introduction: An OLED screen for 3D printer control, compatible with ramps and MKS series motherboards, using a 7-pin SPI screen, compatible with 0.96 and 1.3-inch screens, and the configuration method is the same as MKS OLED. There are universal version, 2.4/Trident and Voron0.1 version shells

Schematic PCB

[Internet of Things] Hongmeng Smart WiFi Switch +4268146A

Introduction: Use the Hongmeng Hi3861 chip combined with the servo to realize WiFi remote control of physical switches in homes or dormitories.

Schematic PCB

20-key keypad, your right-hand assistant! 【Pro Micro】

Introduction: 1. Independently copy and paste shortcut keys. 2. Open source QMK program, full-key programmable. 3. All keys are 1U. The keycaps are simple and cheap. There are no satellite shafts and no positioning plate is needed. 4. Configured RGB lights to display layer status.

Schematic PCB

Minimalist and efficient 40-key Planck keyboard [STM32f103c8t6]

Introduction: It is divided into two PCBs. When used alone, it is a 20-key small keyboard. When put together, it is a full-featured computer keyboard; STM32f103c8t6 is used as the onboard master control; all use 1U keys. The keycaps are simple and cheap. There are no satellite axes and no positioning plate is needed. ; Configured RGB lights to display layer status.

Schematic PCB

Free combination keyboard: 16, 32, 48, 64 keys [ATmega32A]

Introduction: 1. Free combination keyboard: 16 keys, 32 keys, 48 ​​keys, 64 keys. 2. Open source QMK program, full-key programmable. 3. All keys are 1U. The keycaps are simple and cheap. There are no satellite shafts and no positioning plate is needed. 4. Configured RGB lights to display layer status.

Schematic PCB

The simplest programmable in-line keyboard with RGB, suitable for beginners [Pro Micro]

Introduction: 1. It is divided into two PCBs. When used alone, it is a 20-key small keyboard. When put together, it is a full-function computer keyboard. 2. Open source QMK program, full-key programmable. 3. All keys are 1U. The keycaps are simple and cheap. There are no satellite shafts and no positioning plate is needed. 4. Configured display layer status such as RGB.

Schematic PCB

Cheap and easy-to-use 40-key inline keyboard [ATmega32A]

Introduction: I love 40-key inline keyboards. In order to further reduce the height of the keyboard, I used an onboard main control this time. Since the price of 32u4 is too high recently, I switched to ATmega32A as the main control and tried the QMK firmware.

Schematic PCB

Do you dare to love and use it? The ultimate simple 30% inline keyboard [ATmega32a]

Introduction: I have always loved minimalist in-line keyboards. This time I bring you an extremely simple and 30% customized mechanical keyboard. Is this a toy or a tool?

Schematic PCB

40% programmable conventional configuration keyboard, a good choice for beginners

Introduction: 1. 40% ordinary configuration small keyboard, 44-key full-function computer keyboard. 2. Open source QMK program, full-key programmable. 3. If the satellite axis is not used, the positioning plate is not needed. 4. Configured RGB lights to display layer status.

Schematic PCB

Flexible and easy to use, 40% programmable conventional configuration, can add numeric keypad [Atmega32a]

Introduction: Introduction: 1. 40% normal configuration of full-key programmable keyboard, which can be added with a numeric keypad. 2. Open source QMK program, full-key programmable. 3. If the satellite axis is not used, the positioning plate is not needed. 4. Configured RGB lights to display layer status.

Schematic PCB

BluePill VA.1

Introduction: Common core board for STM32F103C8T6 and other clone chips

Schematic PCB

STM32F103RBT6

Introduction: STM32F103RBT6 minimum system board~

Schematic PCB

STM32F103C8T6(BluePill)

Introduction: STM32F103C8T6 minimum system board~

Schematic PCB

IGCM15F60GA_FOC_DriverBoard

Introduction: IGCM15F60GA_FOC_DriverBoard, a brushless DC motor driver board based on IGCM15F60GA.

Schematic PCB