Huawei RF Basic Knowledge Training

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2018 Electronic Competition Question F-Wireless Microphone Amplification System (Xidian University)

Schematic PCB

2018 Electronic Competition Question F-Wireless Microphone Amplification System (Dalian University of Technology)

Schematic PCB

2018 Electronic Competition Question F-Wireless Microphone Amplification System (Harbin Engineering University)

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2021 Undergraduate Electronic Design Competition Title E National Second Grade Work (Digital and Analog Signal Mixed Transmission Transceiver)

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Women's safety device, smart wallet with GSM and GPS location tracking

2 Layers PCB 52 x 96.3 mm FR-4, 1.6 mm, 1, HASL with lead, Blue Solder Mask, White silkscreen; A device for women safety, equipped with GSM and GPS modules for location tracking.

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1km radio controller

Powerful 1km 6-10 channel remote control, suitable for DIY projects such as drones and cars.

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10.5GHz (X-band) patch antenna

4 Layers PCB 60 x 171 mm FR-4, 1.6 mm, 1, HASL lead free, Green Solder Mask, White silkscreen;10.5GHz, 8 element, patch antenna. Make your own phased array for communications or radar. Full instructions at github .com/jonkraft

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Reference design of Epson multimeter microcontroller S1C17M02/M03

Can measure DC/AC voltage, DC/AC current, resistance, inductance, capacitance, diode, frequency. Built-in 16bit ADC, digital filter, RMS effective value circuit and peak hold circuit. Multimeter control unit integrated with microcontroller, officially launched reference design kit, powered by button battery, including schematic diagram.

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ADS-B 1090Mhz filter amplifier

Introduction: ADS-B 1090Mhz filter amplifier

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Planck keyboard, 40% layout, three modes

Introduction: Planck three-mode PCB layout file, because it was drawn using other software, the 3D drawing of the light is sealed, and the actual layout will not be affected.

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【Collection】Happy little duck

Introduction: Based on Yuxin's YX-2.4G single-chip transceiver and bidirectional IO monitoring and frequency communication, it cooperates with 1818AM to realize 4-channel motor forward and reverse drive

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Concurrently manage 8 tubes for the whole bridge

Introduction: Please pay attention to safety when using

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【Training Camp】Bionic Dog

Introduction: Developed based on Hongmeng Hi3861 main control, PCA9685PW is used to control the movement of 8-channel MG90S servos. It uses a 7.4V/2000mA battery as the external power input and supplies power to the servos and MCU system through a buck chip. And connect to the external serial port programming pin.

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[Solicitation Order] Sail No. 1 creates a remote control boat

Introduction: Using the ESP-WROOM-02U chip, combined with 3D printing and Android APP, a remote control boat that supports wireless charging is realized.

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ESP8266EX-Wireless Remote Control Pen

Introduction: This project is a wireless remote control pen based on ESP8266EX wireless chip.

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usb3.0 split 2.0+3.0

Introduction: usb3.0 typea is split into 2.0 and 3.0 interfaces

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MFRC522_NFC card swiping circuit_learning board

Introduction: NFC communication verification board based on MFRC522, SPI interface, fully compatible with Arduino's MFRC522 library.

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DJI changes to analog, rx5808 receiver

Introduction: The module is based on the "Drink This Bowl of Poisonous Chicken Soup" by the up owner of station b. The principle and firmware are all based on this up. You can search for specific tutorials by yourself. I just drew a pcb.

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2021 Question E - Digital-Analog Signal Hybrid Transmission Transceiver + All Guessed Correctly

Introduction: 2021 National Undergraduate Electronic Design Competition Topic E [Digital-Analog Signal Hybrid Transmission Transceiver] National Second Prize Work

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