Huawei RF Basic Knowledge Training

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EVALZ-ADN2905/EVALZ-ADN2913/EVALZ-ADN2915/EVALZ-ADN2917 User Guide

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Three-axis MEMS accelerometer - Xiaomi smart bracelet design

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PX4 Robotic Drone Vehicle/Flight Management Unit (VMU/FMU) - RDDRONE-FMUK66

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Three-Phase Power Meter Reference Design

The three-phase power meter reference design is used to measure and record active and reactive energy in directly connected three-phase networks. It is pre-certified to the European EN50470-1, EN50470-3, Class B and Class C, and IEC 62053-21 and IEC 62052-11 international standards for active energy class 2 and class 1 electronic meters.

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Sub-μA current sensor based on Kinetis K22F

The Sub-μA Current Sensor is a Kinetis K22F based current measurement board running on FreeRTOS and can be used with the Freedom Development Ecosystem or any other Arduino-like development board.

This reference design allows for non-intrusive connection between any MCU and a 3.3V shield and measurement of a wide range of low currents (~60 nA – 5 mA). Multiple communication methods are available, including integration with Freedom Sensor Toolbox (CE).

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2018 Electronic Competition Question B-Fire Fighting Aircraft (Dalian University of Technology)

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2020 Electronic Competition Question D-Obstacle Avoidance Aircraft (Chongqing University of Science and Technology)

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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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posture correction robot

It's common for computer users to bend over in front of a screen, which can eventually lead to back problems. There are various gadgets on the market that solve this problem by constantly reminding users to sit up straight, but most of them are not fun. So I made a fun little tool for this problem.

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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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MiniQ: a mini quadcopter

MiniQ is a mini quadcopter that is open source from hardware design to control algorithm. The algorithm used for the Altitude Heading Reference System (AHRS) is the DCM complementary filter. The system calculates the height and controls the output PWM of the four motors 1600 times per second. It can be controlled remotely via Bluetooth (Bluetooth Serial Port Profile).

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FXLS8967AF 3-axis acceleration sensor sensor toolbox development board

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FXLS8974CF 3-axis IoT acceleration sensor sensor toolbox development board

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BGU7031 Evaluation Board for Set Top Box Low Noise Amplifier

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BGA3012 Demonstration Board, 5 MHz to 300 MHz 12 dB Gain Inverting Amplifier Application

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BGA3012 Demonstration Board, 40 MHz to 1006 MHz Push-Pull Amplifier Application

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Low Noise Amplifier Evaluation Board with BGU7003 for 2.4 GHz ISM/WLAN

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Low noise amplifier evaluation board using the BGU7003 matched to the 868 MHz ISM band

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