Introduction: After learning W5500, I also wanted to learn about CH395Q. There was no module on the Internet that was common with the W5500 board interface, so I made one myself. Thanks to the fact that I have learned a lot about Lichuang EDA and open source hardware platforms, I, as an amateur, can also create a lot of things I want.
Introduction: An analog clock made using ESP32 C3 12F main control chip digital tube display and ws2812 lamp beads.
Introduction: POCSAG encoded small sending device made using STM32
Introduction: Using ch340n, it can be used for personal testing
Introduction: Thermohygrometer designed based on Tuya smart module
Introduction: LIN transceiver verification board based on TJA1027
Introduction: The temperature and humidity of the surrounding environment are obtained through the temperature and humidity sensor, and then sent to the cloud by the Tuya networking module for remote detection.
Introduction: The ESP32-C2-12F chip is used to drive the digital tube to display the time. The chip can be remotely connected through WiFi to display the current time, and can also be adjusted through buttons.
Introduction: IC lamp bead lamp board with ESP8266 microcontroller
Introduction: For detailed project introduction, please see https://oshwhub.com/txiaomi/wu-lian-wang-cha-zuo
Introduction: For detailed project introduction, please see https://oshwhub.com/txiaomi/wu-lian-wang-cha-zuo
Introduction: 5*17 ws2812 dot matrix, which can display temperature, humidity, time, etc. Comes with sensors: sht20, ds3231, photosensitive, msa301, buzzer, eeprom. esp32 main control chip. There are five touch buttons,
Introduction: ESP8266 RGBWW five-way dimming driver board Lightning
Introduction: A dual-channel temperature and dimming circuit based on ESP8266 and PT4115, which can be flashed into esphome for intelligent control. Leads out most pins and 3.3v and 5v outputs to support sensor expansion
Introduction: This is a fourth-order bandpass filter. With an operational amplifier connected at the end of the filter, it can achieve more effective filtering. The operational amplifier at the end can compensate for the gain loss of some filter circuits.
Introduction: This project is based on the DDS generation module of AD9833 to generate a sine wave, square wave, and triangle wave. However, the frequency step and amplitude cannot meet the requirements, so a control module is needed. This module has a controllable amplifier, peak detection module, and filter module.
Introduction: Tuya smart language remote control module, USB 5V night light, can control conversations and infrared learning, infrared remote control
Introduction: Using sipeed's m1w module, equipped with k210 dual-core risc-v high-performance processor, it can run the GBA simulator smoothly, and can use the built-in npu to achieve more functions. The DAC uses PCM5102A, with complete analog-to-digital isolation, and can also be used as a portable playback device use.
Introduction: Design a multi-channel PWM, multi-communication, multi-sensor interface expansion board