# XCTRACK_vario DO IT YOURSELF ! Variometer for XCTRACK 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 https://my.aliexpress.com/wishlist/shared.htm?groupId=100000009108834 - PLA box 3D printing https://cad.onshape.com/documents/8ec970df0f91cd7f4dafb0b8/w/81f5e80ab2d84901aa8e29be/e/2df0103f0eb100d6330b3609 ![alt text](https://raw.githubusercontent.com/dvarrel/XCTRACK_vario/master/img_xctrack512.jpg) ## with usb support ![alt text](https://raw.githubusercontent.com/dvarrel/XCTRACK_vario/master/vario_MS5611.png) ![alt text](https://raw.githubusercontent.com/dvarrel/XCTRACK_vario/master/img_usb-mini_soldered.jpg) ![alt text](https://raw.githubusercontent.com/dvarrel/XCTRACK_vario/master/img_usb-c_soldered.jpg) ## with bluetooth support ![alt text](https://raw.githubusercontent.com/dvarrel/XCTRACK_vario/master/vario_MS5611_bluetooth.png) ![alt text](https://raw.githubusercontent.com/dvarrel/XCTRACK_vario/master/img_usb-mini_bluetooth_soldered.jpg)