v1.7 - Jun 2019
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Introduction
The BlueFlyVario is a flight instrument for measuring vertical speed and altitude based on
atmospheric pressure. It consists of a simple hardware device that measures the atmospheric
pressure 50 times every second, with a resolution that enables the measurement of altitude
differences as small as 10 cm.
A number of models of the BlueFlyVario are available. See
This manual describes the settings which are stored on the BlueFlyVario, how to set them, and what
they control. These settings are known as the hardware settings
Hardware Settings
Overview
The Microchip PIC microcontroller on the BlueFlyVario has an onboard memory (EEPROM) which is
used to store hardware settings. The hardware settings are read from the onboard memory when
the device is powered on. When a hardware setting is changed by the user the value is used by the
onboard code immediately, and the setting is stored in the onboard memory.
Settings can be altered by powering on the BlueFlyVario Hardware and connecting to a host
computer or mobile device. The host device needs to run an application which connects to the
BlueFlyVario using a serial protocol. This might include any of the following methods:
BFV Hardware
Host Device
Host Device Application
BlueFlyVario Bluetooth
Versions
Android Device
BlueFlyVario app
BlueFlyVario Bluetooth
Versions
Android Device
Third Party app which supports
hardware settings
Any BlueFlyVario version
Desktop or Laptop computer
running Windows or Linux, with
an Bluetooth adapter or USB to
Serial converter
BFV Desktop Java Application
Any BlueFlyVario version
Desktop or Laptop computer
running Windows or Linux, with
an onboard Bluetooth adapter
or USB to Serial converter
Terminal Application such as
RealTerm (using the raw serial
protocol described in the serial
communication section)
Any BlueFlyVario hardware
which can connect to a device
which supports LK8000
Any device which supports
LK8000 and can connect to the
BlueFlyVario TTL or Bluetooth
versions
LK8000 (most recent versions
as of Mar 2014)
A comprehensive list of the hardware settings is included as Annex A.
