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

Schematic PCB

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.

Schematic PCB

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).

Schematic PCB

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

Schematic PCB

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

Schematic PCB

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.

Schematic PCB

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).

Schematic PCB

FXLS8967AF 3-axis acceleration sensor sensor toolbox development board

Schematic PCB

FXLS8974CF 3-axis IoT acceleration sensor sensor toolbox development board

Schematic PCB

FRDM-K22F-AGMP03: Sensor Toolbox development board for 10-axis solution using FXLS8962AF, FXAS21002C, MAG3110 and MPL3115A2

Based on DA14580_ADXL362 schematic diagram (Xiaomi bracelet solution)

Based on DA14580_ADXL362 schematic diagram (Xiaomi bracelet solution)!

Schematic PCB

Breakout board for FXLN83xxQ NXP accelerometers

Single phase electricity meter

Schematic PCB

Four+rotor+MAV four-wing aircraft

Contains the design principles of four-wing aircraft

Schematic PCB

Quad-rotor aircraft electronic control program_can make the quad-rotor aircraft hover stably

Foreign quadcopter codes

Schematic PCB

AIS2IH adapter board for standard DIL 24 sockets

he STEVAL-MKI218V1 is an adapter board designed to facilitate the evaluation of MEMS devices in the AIS2IH product family.

Schematic PCB

LPS27HHTW adapter board for standard DIL 24 sockets

The STEVAL-MKI220V1 is an adapter board designed to facilitate the evaluation of MEMS devices in the LPS27HHTW product family.

Schematic PCB

LPS22CH adapter board for standard DIL24 sockets

The STEVAL-MKI219V1 is an adapter board designed to facilitate the evaluation of MEMS devices in the LPS22CH product family.

Schematic PCB

Digital Inclinometer Kit Based on IIS3DHHC

The STEVAL-MKI216V1K evaluation board has an embedded IIS3DHHC 3D accelerometer sensor, which is connected via cable to a simple adapter board (STEVAL-MKIGIBV5) to render it compatible with STEVAL-MKI109V3 motherboards.

Schematic PCB

Assistive trainer for planks and push-ups

Using the wearable sensor function of SensorTile.box, you can intuitively observe your movements and training conditions through curves when doing push-ups and planks.

Schematic PCB