RTK20-Main-Board copy

Introduction: Porter, modify the board size

Schematic PCB

STC8H3K64S2 makes 12864LCD dual-channel voltage and current capacity meter

Introduction: Copy the homework of the great god and share the process https://www.mydigit.cn/thread-298246-4-1.html
Low-cost coulomb meter, except for the screen 9.9 free shipping, everything else is very cheap

Schematic PCB

Current and voltage meter-USB tester-V2.0 copy copy

Introduction: Porter, change it to OLED 0.96 i2c that can be purchased from TB, and change the high voltage to low voltage. The protection voltage can be turned off when testing the battery, and the protection board is no longer needed.

Schematic PCB

STM32F411RE

Introduction: For Hui'er

Schematic PCB

[To be tested]STM32F103C8T6 core board

Introduction: stm32f103c8t6 core board design

Schematic PCB

[To be tested] PID self-balancing car

Introduction: pid balance car control panel

Schematic PCB

[Test passed] Infrared thermometer (with voice broadcast)

Introduction: Voice broadcast infrared temperature measurement display system

Schematic PCB

[Test passed] IoT desktop weather forecast terminal

Introduction: Desktop weather forecast clock for esp8266 and lcd1602.

Schematic PCB

STM32F103C6TY

简介：此板为STM32F103核心板

Schematic PCB

Zhirong sw6208 power bank A+C solution

Introduction: Handheld single-section mobile power bank A+C

Schematic PCB

51 microcontroller basketball timer course design

Introduction: It can realize timing, 24-second violation timing, score counting, and the 51 core can be replaced with a 40P card holder if conditions permit.

Schematic PCB

Xiaoxi->8051 Uno

Introduction: ⭐ 8051 Uno development board based on STC8G and STC8H series microcontrollers ⭐

Schematic PCB

GD32F350G8 development board

Introduction: Based on the GD32F350G8 development board, Laowang Store costs 4.2 yuan for two pieces.

Schematic PCB

F411 flight control

Introduction: The STM32F411 flight control of the flying machine
uses matek firmware and supports betaflight and INAV.

Schematic PCB

BLHleli ESC

Introduction: Open source ESC
BLHleli ESC, brushless motor drive, ESC
is for reference only

Schematic PCB

[Spark Project] The most beggar 17+4+ touch mechanical keyboard PRO

Introduction: The orthodox sequel to the most beggar's touch numeric keyboard, this time the code will be open sourced for the first time.
Don't say that you, the author, don't follow martial ethics. I just created your old project and you updated it.
The functionality and practicality completely surpass the previous version. Moreover, it was published one and a half years apart

Schematic PCB

The most beggar 61+3 keyboard (10cm spliced ​​version)

Introduction: 3 pieces of PCB within 10x10cm are spliced ​​together to form the most beggar 61+3

Schematic PCB

USB-Converter-Board

Introduction: USB2USB keyboard converter, connects SparkFun Pro Mini/Micro core board and USB Host Shield Mini expansion board.

Schematic PCB

Homemade linux small computer

Introduction: Allwinner V3S main control, board shape and screw holes compatible with Raspberry Pi

Schematic PCB

si4844 mechanically tuned digital display full band radio

Introduction: stm32F103C8T6 Arduino For ARM si4844 mechanically tuned digital display full-band radio with super good sensitivity. The shortwave and FM antennas are only 37CM ​​and have basically the same effect as the Tecsun PL600.

Schematic PCB