【ART-Pi】Local speech recognition control

Introduction: Used to participate in the ART-Pi expansion board design competition

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Rain sensor based on Tuya BT5S

Introduction: Rain sensor based on Tuya BT5S

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Wireless dimming knob designed based on Tuya ZTU zigbee module

Introduction: Wireless dimming knob designed based on Tuya ZTU zigbee module

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Human presence sensor designed based on Tuya Smart ZTU Zigbee module

Introduction: Human presence sensor designed based on Tuya Smart ZTU Zigbee module

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BH1750 light sensor

Introduction: BH1750 Light Sensor Module

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【DEMO】CH551G Touch Ring

Introduction: Try to make a touch slider demo on a low-end microcontroller with touch capacitance detection

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Third generation mini model aircraft remote control receiver

Introduction: The new version of the receiver has very powerful functions, upgraded remote control, and a new design of the third-generation receiver. In addition to outputting servo signals, it can also output high-level signals and PWM signals to directly drive peripherals. PPM output, serial port output, can play simulator, connect flight control, etc. Voltage return, signal quality return.

Schematic PCB

Temperature and humidity real-time monitor based on Tuya smart module

Introduction: Real-time temperature and humidity monitor based on Tuya smart module, mobile APP interaction. Real-time alarm. 12864 displays perpetual calendar and temperature and humidity.

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Nixie tube watch based on STC51 microcontroller

Introduction: 2 Niwa tubes. When you raise your wrist, the hours will be displayed first, and then the minutes will be displayed. The Niwa tubes consume a lot of power, so the NIWA watch cannot stay on. It has a built-in gyroscope sensor, so you can only see the time by raising your wrist. The watch will light up when the time is up, which is the same as current smart watches.

Schematic PCB

[Tuya Smart] Temperature and Humidity Sensor

Introduction: The MCU temperature and humidity sensor of the stc15w4k+Tuya WR3 wifi module can be controlled online using the mobile APP, and the temperature and other corresponding information can be queried through the OLED

Schematic PCB

Tunable light source prototype

Introduction: Control the full-color LED light source through Tmall Genie and app. It can control the color of the light source, it can control the brightness of the light source, it can control the light source to switch manually, it can control the light source to switch automatically according to the environment.

Schematic PCB

Desktop temperature and humidity weather clock

Introduction: The main control uses the W601 chip. The main board is shaped like a Bilibili TV icon. The display uses a 2.4-inch TFT LCD screen, which can display the current time, weather, real-time temperature and humidity information, and supports setting temperature and humidity warnings.

Schematic PCB

Photosynthetic Future Programming Adapter Board (M-TTL Programmer) Modified Version

Introduction: Based on https://oshwhub.com/Giftina/guang-ge-wei-lai-shao-lu-zhuai-j, replace it with your own commonly used materials

Schematic PCB

Air pressure control device

Introduction: This air pressure control device can collect the air pressure in the air bag in real time, and through inflation and deflation, the air pressure in the air bag reaches the set target value and maintains dynamic stability. Won the first prize in this Shenzhen University electronic competition.

Schematic PCB

TCRT5000-6 channel

Introduction: Self-made six-channel TCRT5000 line patrol sensor

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Homemade VR full-body tracker

Introduction: 8266 is the main controller and is compatible with both MPU and BNO attitude sensors. Use BNO to weld the three connection points below BNO, and use MPU to weld the three connection points below MPU. Two sets of sensors can be installed but the connection points of both sets of sensors cannot be connected at the same time.

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

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Esp32_v1

Introduction: esp32 minimal board

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esp8266 development board

Introduction: esp8266 development board onboard downloader, onboard dht11

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USTC-EDU-STM32

Introduction: STM32F405 + STlink downloader + serial port + NRF24L01 + CAN ultra-small development board

Schematic PCB