Weather forecast small TV--rechargeable lithium battery

Introduction: ESP8266 Weather Forecast Small TV--Rechargeable Lithium Battery

Schematic PCB

【ART-Pi】ART PI ZIGBEE and LORA gateway expansion board

Introduction: Function expansion board integrating ZIGBEE, LORA and BC20

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Non-standard PCIE 8X C6100

Introduction: Used for Dell server non-standard PCI-E X4 X8 interface to NGFF to simultaneously expand two fans 4P and one fan 2P (12v)

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[Verified] Three-in-one NFC door card

Introduction: For beginners, please refer to @liujigang’s project https://oshwhub.com/liujigang/gong-jiao-men-jin-ka to simply draw a three-in-one access control card and select which card to use through the micro button .

Schematic PCB

nrf24l01 transmitter model aircraft joystick remote control

Introduction: This transmitter can also be used as any commercial RC transmitter for controlling RC toys, cars, drones, etc. To do this, it only requires a simple Arduino receiver, which then generates the appropriate signals to control those commercial RC devices.

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[Hongshun Training Camp] Wireless remote control based on HK32F103C8T6

Introduction: Wireless remote control based on HK32F103C8T6

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Tuya universal remote control

Introduction: Tuya smart remote control module, USB 5V night light, can control night light and infrared learning, infrared remote control

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STM32 series core board and universal expansion board

Introduction: This project is used for temperature and other environmental data collection and control equipment to start and stop and upload the data.

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[Tuya Smart] Jingjing Pet Automatic Feeder +574483A

Introduction: ESP32 automatic pet feeding machine, capable of timed feeding and manual remote feeding

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[Training Camp] Aquarium control system based on IoT intelligence +772446A

Introduction: Aquarium control system based on Tuya smart WiFi&Bluetooth module WB3S.

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opentx.4.3 color screen

Introduction: Based on stm32f429bit6 core board

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ESP-WIFI module

Introduction: Finished painting. You need to verify it yourself, I am going to make a sample test.

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Tesla coil full bridge integrated board

Introduction: drsstc integrated full bridge board, resonant capacitor 0.11uf, if it is not enough, you can add more

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Wireless serial debugger

Introduction: A wireless serial port debugger based on jdy40 needs to be used with a development board with jdy40. It draws lessons from the engineering 2.4G-USB, changes it to a direct plug-in USB and reduces the area. The original author mojiexiaozi

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nrf52832DEV

Introduction: This project is Nordic nrf52832 development board

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Electromagnetic capacitor mounting plate

Introduction: Hehe, the strange PCB used in making a small smart car, electromagnetic tracking, is for reference only. . .

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FM radio-all triode construction

Introduction: This circuit scheme is designed by the master of S53MV. It uses ordinary low-frequency transistors to build an FM radio. Note that it is an FM radio, not a simple low-frequency AM.

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ELRS2.4G ExpressLRS receiver

Introduction: Drawn based on foreign open source circuits, it has been produced and tested successfully.

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[Training Camp] Internet of Things refers to smart clocks

Introduction: Smart Clock Smart Clock Smart Clock Smart Clock Smart Clock

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Xi'an subway route NFC electronic business card map

Introduction: This project is an NFC electronic business card board designed to facilitate riding the Xi'an subway. The top floor uses windows to simulate the route maps of Xi'an's four subway lines. The NFC coil is drawn on the bottom layer for NFC communication. Various NFC functions can be implemented through APP programming, which is very convenient and fast.

Schematic PCB