RFID switch 2

Introduction: Use esp8266 as the main control to make an access card swipe switch

Schematic PCB

PCF8574

Introduction: Use PCF8574 chip and I2C communication to realize IO control

Schematic PCB

DeerESP

Introduction: DeerESP is an expansion project of PushDeer in the IOT direction. It is a messaging device solution based on ESP8266.

Schematic PCB

ESP32-C3-32S expansion board

Introduction: esp32c3-32s development board, sd card holder, 1.14TFT welding screen, five-way switch

Schematic PCB

Voice recognition module expansion board single module 9.0 fool-proof interface

Introduction: The speech recognition module only costs 10 yuan. What are you waiting for? Don’t you know how to use it? Simple operation, you can customize words, even a novice can make very interesting things with the mixly library

Schematic PCB

2021 Question I-Energy storage car with power generation function 2223

Introduction: The first work of the 21st National Electric Competition, an energy storage car with power generation function

Schematic PCB

TMK USB to USB converter

Introduction: You need USB host controller chip MAX3421e and AVR chip ATMega32U4. TMK firmware flashing and use

Schematic PCB

ESP32 projection

Introduction: A small projection made using ESP32+ST7789

Schematic PCB

ESP32 clock

Introduction: Round Desk Clock

Schematic PCB

DIY zigbee2mqtt zigbee3.0 gateway

Introduction: Based on CC2652P/E72-2G4M20S1E zigbee3.0 Raspberry Pi adapter board

Schematic PCB

USB controller based on development board 32U4-MU

Introduction: An Xbox360 controller is made using the mciro pro development board, which is the 32U4-MU development board. Using a USB link, it can be used to DIY win10 handheld consoles. There is no problem with personal verification.

Schematic PCB

ESP8266 ceramic LED clock hollow version 26mm filament

Introduction: ESP8266 digital NTP clock

Schematic PCB

[Solicitation Order] Programmer Lao Huangli

Introduction: The board based on the esp32-s2 module currently verifies that all functions are normal. The program has been written and the folder has been created. ps: io46 cannot be used as an output pin.

Schematic PCB

CH552g volume knob

Introduction: Volume adjustment knob PCB of CH552g master control

Schematic PCB

programmable breadboard

Introduction: Replace jumpers with analog switch matrix chips.

Schematic PCB

1.69-inch capacitive screen adapter board

Introduction: 1.69-inch capacitive screen adapter board

Schematic PCB

ESP32-S2 FeatherS2

Introduction: Copyboard FeatherS2

Schematic PCB

ICM-20948 module

Introduction: An ICM20948 module (basically the PCB wiring of CJMCU, thank you very much. Please inform us if there is any infringement)

Schematic PCB

ESP8266Duino

Introduction: A development board based on ESP8266 and compatible with the Arduino® UNO R3 interface

Schematic PCB

E73-2G4M04S1B environmental monitoring solution

Introduction: Environmental monitoring solution based on Chengdu Ebyte's E73-2G4M04S1B, onboard CO2 sensor, liquefied gas sensor, smoke sensor, temperature and humidity sensor, etc.

Schematic PCB