Kaiku Keycool84 three-mode excellent connection keyboard

Introduction: Keyboard based on QMK firmware and Logitech K375S main control, the shell is adapted to Kaiku 84

Schematic PCB

S1. Loli generation remote control

Introduction: Loli Generation’s open source remote control

Schematic PCB

IDF is really difficult to use the ESP32S3 development board

Introduction: ESP32-S3 development board, all IO leads out, verified, compatible with NOR FLASH, SPRAM and S3 version with built-in FLASH and SPRAM. Use AD to draw, personal non-profit. The board and patch verification has been completed.

Schematic PCB

IDF is really difficult to use the ESP32S2 development board

Introduction: ESP32-S2 development board, with all IO leads out, has been verified to be compatible with NOR FLASH, SPRAM and the S2 version of built-in FLASH and SPRAM. Use AD to draw, personal non-profit. The board and patch verification has been completed.

Schematic PCB

RTC6705 image transmission V0.1

Introduction: This is a 150MW image transmission system based on RTC6705 and ERC6659E chips, supporting 30.5mm flying tower installation port

Schematic PCB

RTC6705 Image Transmission 2.0

Introduction: RTC6705 Image Transmission 2.0

Schematic PCB

RCT6705 Image Transmission Remastered Version V3

Introduction: As shown in this project, my video transmission version 3.0 has been completed. Currently, there are some problems with power control, so the microcontroller version 4.0 is not open source for the time being.

Schematic PCB

High power version remote control car receiving board

Introduction: Remote control panel designed based on Hummingbird wireless module

Schematic PCB

ExpressLRS ELRS Tlite built-in tuner

Introduction: Built-in ELRS 2.4G tuner solution suitable for T-lite RC remote control.

Schematic PCB

ESP8266 black water screen driver board

Introduction: ESP8266. Ink screen driver board. Full size supported. Two and three colors.

Schematic PCB

Challenge the smallest OLED wifi killer on the entire network

Introduction: A portable wifi killer the size of a USB flash drive, with automatic download circuit

Schematic PCB

K100Pro shell-k375s-pcb

Introduction: Youlian 96 keyboard with printscreen buttons

Schematic PCB

BGA291 integrated solid particle to CF Express

Introduction: Use Xianyu’s cheap M2 all-in-one disk to DIY your own CF Express card, and don’t pay IQ tax for the sky-high price M.2 adapter board

Schematic PCB

Wireless LED Control

Introduction: It is planned to make a modular LED display system with high flexibility and controllable cost, which can be used for marriage proposals, surprises, etc., to achieve the variable and controllable graphical display required in marriage proposals, and to reflect the appeal of electronic enthusiasts. Their self-cultivation will contribute to improving the favorability of electronic enthusiasts in the hearts of the opposite sex.

Schematic PCB

LOLI 6-channel mini receiver

Introduction: Small size can be put into a 1:64 model car.

Schematic PCB

PCB WIFI directional antenna

Introduction: I saw that the WIFI signal directional antenna made by the fighting nation using copper plates works well, but the price of copper plates is relatively high, and it also requires cutting accuracy. The PCB copper foil is also copper, and the size is more accurate. Try to use PCB to make one

Schematic PCB

low_if_fm

Introduction: fm radio

Schematic PCB

Paint caliper

Introduction: Contains 3 different types of calipers, which can also be modified freely.

Schematic PCB

Wired mouse keyboard to wireless mouse keyboard

Introduction: https://www.bilibili.com/video/BV1mi4y1d7qf?spm_id_from=333.999.0.0 Implement USBHID to serial port function

Schematic PCB

Wireless voice RGB light strip control panel

Introduction: Directly use the voice control protocol and 2.4G wireless module to remotely control the RGB light strip. The cost of the control board is less than 10 yuan, the cost of the voice control board is less than 15 yuan, and the Taobao public model of the shell is 1.5 yuan.

Schematic PCB