Simple FM radio transmitter

Introduction: Use 9018 transistor to transmit NFM FM broadcast. It has few components and is simple and suitable for beginners.

Schematic PCB

G613 matrix open source

Introduction: Logitech G613 complete circuit schematic diagram. If you have any questions, please join the group 493805900

Schematic PCB

Infineon microcontroller core board

Introduction: Minimal system board based on Infineon tc264s

Schematic PCB

Custom keyboard

Introduction: 4*4 custom mechanical keyboard based on 51 microcontroller

Schematic PCB

[Electronic Competition 2017 Question H] Remote Amplitude and Frequency Characteristics Test Device-683155A

Introduction: 2017 Electronic Competition H Topic Solution: Amplitude-frequency characteristic detection and remote transmission are completed through four parts: signal generator module (DDS), program-controlled amplifier module (VGA), detector module, and remote signal transmission module; the display adopts LCD12864 display Screen

Schematic PCB

SSTC+PLLSSTC double TC composite board

Introduction: SSTC+PLLSSTC dual TC combined board. In the video, the power bridge and driver are powered by 12V. Because the power bridge and driver are isolated by GDT, the power bridge can accept rectified and filtered mains power.

Schematic PCB

QCW Dual E Class Arc Amplifier (Double E Tesla Coil)

Introduction: Dual E Class Tesla Coil

Schematic PCB

PCB integrated HFSSTC

Introduction: The smoke coming out from under the coil in the video is caused by freewheeling electric cold. Originally, an air-core inductor was supposed to be used, but instead a magnetic ring was used. Key parameters: resonant capacitor 590PF, freewheeling inductance value 0.34UH, secondary coil inductance value 1.147UH

Schematic PCB

ESP32 Minimal System Boardcopy

Introduction: The pin definitions are the same as the official board circuit, but the layout is slightly different.

Schematic PCB

High power NE555

Introduction: The famous 555 chip is made of transistor, resistor and 2 diodes. Please download the BOM table in the attachment.

Schematic PCB

esp32 32D copy

Introduction: The esp32-wroom-32D core board is produced according to official documents. The layout of the board has been slightly changed. The download port has been changed to TYPE-C and the serial port chip has been changed to CH340C.

Schematic PCB

Logitech G613 small board

Introduction: Clone from https://oshwhub.com/x444222/g613-ju-zhen

Schematic PCB

joystick remote control

Introduction: Three generations of Lolita

Schematic PCB

[Tuya Smart] Tuya temperature and humidity sensor 502046A

Introduction: Tuya Smart-temperature and humidity sensor integrated Tuya smart curtain wireless remote control

Schematic PCB

ESP8266-01s relay (LTV-817S-B)

Introduction: Based on the lighting technology platform-ESP8266-01s relay, local physical switch, 433/315MHZ radio frequency remote control (stick the switch at will), AP+ web distribution network

Schematic PCB

Manta R2 remote control modified version

Introduction: Manta R2 remote control modified version V1.0

Schematic PCB

Star Wars remote control changed to Loli remote control motherboard

Introduction: Star Wars remote control to Loli remote control motherboard v1.0

Schematic PCB

【ART-Pi】2.4G remote control expansion board

Introduction: 2.4G remote control: remote control via Bluetooth and NRF24L01 with joystick, buttons, and gyroscope.

Schematic PCB

Double E Class Tesla 01

Introduction: Copied Tesla coil circuit diagram plus own annotations

Schematic PCB

WS2812/SK6812 light board based on ESP8266

Introduction: IC lamp bead lamp board with ESP8266 microcontroller

Schematic PCB