Imported from GitHub: ukmook/qUark · commit 81cf2e9 · license CC-BY-SA-4.0

Description

HW designs

README

qUarkNano flight controller

Design files for qUarkNano 9250 Flight controller.

This is not an easy build and uses very small components.

I use a small oven which i bought from a local store, a microscope from ebay and solder paste from an online UK store. But if you are thinking of building this then i suspect that you already have the right tools.

The BOM file has all the part numbers listed either from RS Components or mouser (the 2 component suppliers i use), You do not have to buy from there but adding the part numbers to the RS website search will bring up the item page which has all the info. The components can be bought from where ever you like.

Kicad

I have included the design files for Kicad and also images, 3d for freecad, part footprint .pretty, PDF schematic and Plots for stencils etc.

Specs

4 PWM, 3 Uarts, 1 RCIN This design has been tested extensively with S800, S84 and mini quads

The design has been optimised for Ardupilot, The uarts, i2c and spi buses were chosen to keep the DMA Table as clear as possible.

Link to HWDEF in my fork of Ardupilot https://github.com/ukmook/ardupilot/tree/master/libraries/AP_HAL_ChibiOS/hwdef/qUarkf4_Nano9

Other flight stacks can be used.

Features

Specification
IMU	MPU9250
Baro	BMP280
SD Card	Push Push type JST
Volt Sense	Voltage sensor 6s Max
Curent Sense	3.3v
Uarts	Usart1 Usart2 Usart6
RX	RCIN on 3 pin port
CPU	STM32F405RGT6
PWM	4 PWM
I2C	1 I2C bus
USB	Vertical USB with diode protection
PCB Size	4 layer board of 21.6 x 30.1 mm.
Buzzer/Alarm	Alarm for Ardupilot musical tones on a timer using micro nfet

PCB

PCB Boards OSH Park https://oshpark.com/shared_projects/hUyCWNei

Upper

Lower