Small ESP8266 development board

Introduction: Smaller ESP8266 development board, verified

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[Solicitation Order] Night Calculation Training Device

Introduction: Use ESP32 to create a speech computing training device for children.

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MultiWirelessKB&MS light transmission experiment

ESP32 one-to-many wireless keyboard and mouse extender

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Arduino builds USBPS2 mouse adapter

In some specific cases, the company's machines do not support the USB interface, so you will encounter problems if you want to use a USB interface keyboard and mouse on your computer. For traditional wired mice, it can be done directly through the adapter on Taobao (this can be achieved because the USB mouse chip can directly identify the currently used interface), but unfortunately, the wireless mouse does not have such an interface, so it cannot be used through This adapter is used to complete the transfer. So, use an Arduino to make a device that converts wireless USB to PS/2.

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esp32 burning rack

Introduction: esp32-V2 programming rack

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Smart home development version stm32+esp8266

Introduction: Function introduction: Keywords in the function description: STM32+ESP-01+ESP-12E+Alibaba Cloud Server+EMQ+Node-RED+App Inventor 2 No more haha

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msgeq7 audio analysis chip

Introduction: msgeq7 can be used as a processing chip for spectrum LED arrays, containing 7 band-pass filters.

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ATTINY85 fuse restorer based on Arduino Nano

Introduction: Friends, when playing ATTINY85, the chip always locks up due to some strange reasons? The Arduino Nano-based fuse restorer can help you. The IC socket can be plugged into a burning clip, burning socket, etc.

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The smallest system to light up LED lights via USB power supply

This project is a minimal system that uses USB power to light up LED lights. After inputting the corresponding program, the flashing of the LED lights can be controlled. This is the first work made by myself. Although the function is single, such a project can be produced It can bring a lot of basic knowledge to beginners and cultivate their interest in creative engineering.

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TINY85 development board

Introduction: tiny85 development board based on avr. I adjusted the position of the silk screen so that it looks more beautiful. There are two through holes, one under the chip and one on the edge of the chip, which is almost invisible.

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Spring Festival "Fireworks" (exploding capacitor) based on attiny85

The next version of i wanna by new is actually about blowing up capacitors, which not only increases the joy of the festival, but also reduces the pollution caused by setting off fireworks and firecrackers to the atmosphere. (In fact, exploding capacitors will produce toxic gases and cause more serious pollution.) Contribute to environmental protection.

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ART-Pi GPS expansion board

GPS expansion board realizes GPS positioning and 2G network, including battery, charge and discharge circuit, Air800s module, onboard antenna, compatible with industrial control board and multimedia board, and can display positioning map.

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Geiger counter

It can be connected to various boards with Geiger counters around 400v, modified based on gc-01.

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ATMEGA328P-BOOTLOADER programming board

Introduction: https://www.bilibili.com/video/BV1Sf4y167eS?spm_id_from=333.999.0.0

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bicycle hot wheels arduino

Introduction: What should I do if the bicycle does not look good when riding at night? Taobao is expensive, so why not make a good thing that shines by yourself?

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8it_click (ESP8266 NTP clock)

Introduction: IC: ESP8266, TM1628, DS1302. Adopting a 10cm x 10cm design, the two-piece version can be used with flying cables. It supports web configuration, NTP time adjustment, web configuration, time display mode, alarm clock setting, Pomodoro clock, night light mode, photosensitivity/fixed brightness.

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Relay_ZFV1: 6-way relay control board based on ESP32

6-way relay control board based on ESP32

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WIFI killer portable version PUB

Introduction: Portable version of ESP8266 WIFI killer with automatic download function and lithium battery charging.

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MKS_ROBIN_WIFI: WIFI wireless printing connection board for 3D printers

WIFI wireless printing connection board for 3D printer

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ESP32_GRBL_V4.0_PUB

Introduction: grbl controlled by esp32 supports memory card offline, Bluetooth serial port, and WIFI web page control of the three-axis laser engraving writing machine control panel.

Schematic PCB