# XCTRACK_vario DO IT YOURSELF !
Variometer for XCTRACK (https://xctrack.org/) base on ms5611 high precision pressure and temperature sensor and LK8000

It's works with USB or Bluetooth on XCtrack !

Power consumption ~ 0.1W ( a little bit more with bluetooth )

Based on Arduino Vario by Benjamin PERRIN 2017 / Vari'Up
Based on Arduino Vario by Jaros, 2012 and vario DFelix 2013
https://github.com/LK8000/LK8000/blob/master/Docs/LK8EX1.txt

parts :
- arduino nano with ftdi chip ( or ch340g chip since xctrack 0.9.3)
- ms5611 pressure and temperature sensor
- bluetooth module in option ( hc-05 or hc-06 or cpp module )
- usb mini - micro - type c OTG cable (if USB mode) , depends on your phone 
<a href="https://my.aliexpress.com/wishlist/shared.htm?groupId=100000009108834" target="_blank">aliexpress</a>

- PLA box 3D printing
<a href="https://cad.onshape.com/documents/8ec970df0f91cd7f4dafb0b8/w/81f5e80ab2d84901aa8e29be/e/2df0103f0eb100d6330b3609" target="_blank">Onshape</a>

![alt text](img/xctrack512.jpg)

## with usb support only

![alt text](img/vario_MS5611.png)

![alt text](img/usb-mini_soldered.jpg)

![alt text](img/usb-c_soldered.jpg)

## with usb and bluetooth support

![alt text](img/vario_MS5611_bluetooth.png)

![alt text](img/usb-mini_bluetooth_soldered.jpg)