AerobTec Altis Micro Manual de usuario
AerobTec Altis
Micro
Recording / Competition Altimeter with Telemetry
Manufacturer:
AerobTec, s.r.o.
Ilkovičova 3
841 04 Bratislava
www.aerobtec.com
AerobTec Altis Micro User Man al 1
Table of contents
1.Specifications..................................................................................................................3
2.Introd ction......................................................................................................................3
3.How it works....................................................................................................................4
4.Hardware description.......................................................................................................4
Connectors of yo r Altis Micro.......................................................................................4
Mo nting in the aircraft...................................................................................................5
Connection for data logging only...........................................................................5
Competition connection with internal BEC............................................................5
Connection with external BEC...............................................................................6
Connection for telemetry.......................................................................................6
USB connection.....................................................................................................7
5.Altis Micro LED indication of state...................................................................................7
6.Work with Altis Micro in the Altis Flight Manager.............................................................8
Altis Micro window..........................................................................................................9
Downloading data...........................................................................................................9
Settings...........................................................................................................................9
Firmware pgrade........................................................................................................12
Firmware types.............................................................................................................13
Back p firmware...........................................................................................................13
7.Connection with AerobTec Device Terminal..................................................................13
8.Warning..........................................................................................................................14
9.Freq ently asked q estions and tro bleshooting.........................................................15
10.Correct disposal of this prod ct...................................................................................16
11.Prod ct Registration....................................................................................................16
12.Notes...........................................................................................................................16
13.Revision History...........................................................................................................16
AerobTec Altis Micro User Man al 2
1. Specifications
Memory: 3.9MB (more than 15 ho r record with 0.1s sample rate, logging altit de,
voltage, temperat re, throttle in)
Sample time: 0.1 – 25.5s ( ser selectable in 0.1s steps)
Dimensions: 30 x 14 x 7mm
Cable length approx. 7cm
Weight: 4.7g with JR cable
Power s pply range: 4 – 8.4V
Logging:
◦altit de
◦voltage
◦temperat re
◦throttle inp t and o tp t
Conforms to all existing competition r les (FAI F5J, ALES, etc.) - for some competitions AerobTec
Device Terminal is req ired as a display element
Records m ltiple motor r ns per flight
LED for indication of state
Telemetry s pport for
◦Jeti D plex EX®, M ltiplex® MSB, Gra pner® Hott
◦F taba® SBUS2, FrSky® S.Port with Telemetry Converter FF
◦Spektr m DMSS, Hitec HTS-SS with Telemetry Converter HS
Upgradeable firmware
AerobTec Altis Flight manager software for Windows
2. Introd ction
The AerobTec Altis Micro is a barometric altimeter designed especially to record the altit de of R/C aircraft
d ring flight with additional competition feat res with telemetry s pport. The nit has very small
dimensions and a low weight.
The Altis Micro senses barometric press re variations ca sed by altit de changes of the aircraft. The
altit de is then calc lated from press re data and stored in the internal memory of the device.
The incl ded system allows yo to connect to a personal comp ter with a Windows (XP or higher)
operating system via USB. The s pplied program will not only read the information from the device and
save it to the comp ter in vario s formats b t it can also display the information in an advanced graph and
process the flight information in many other ways.
This altimeter has f nctions based on FAI F5J and Altit de limiting competitions (ALES) r les so it can be
sed for these competitions.
AerobTec Altis Micro User Man al 3
The device and the software also provide some other complementary f nctions s ch as temperat re,
throttle or voltage meas rement and recording.
3. How it works
The Altis Micro ses a modern, fast, digital press re sensor which allows it to sense very low press re
differences. This gives the nit an altit de resol tion smaller than 0.5m with sample rates as low as 0.1s.
Since atmospheric press re changes over time, these changes will affect yo r meas rements. For this
reason, long term meas rements may not be precise eno gh. However, the altit de for short term flights,
which are common in R/C aircraft, can be recorded very precisely. The meas red altit de is stored in the
high capacity internal memory which allows approx. 15 ho rs of recording with the fastest sampling rate
(0.1s).
After the Altis Micro is connected to a power s pply, it will initialize in the first 3s. D ring initialization, the
reference altit de and a zero throttle level are meas red. Note: It is necessary to keep the throttle on
your R/ transmitter turned off during this phase. It is recommended to set the initial altitude
before each flight by disconnecting and re-connecting the power supply.
4. Hardware description
Connectors of yo r Altis Micro
Yo r Altis Micro has 4 connectors. They are shown in Fig 1.
RC IN – inp t signal from the R/C receiver. Power to Altis Micro is provided from
the receiver via this connector
RC OUT – o tp t signal to ESC (Electronic Speed Control)
USB – Connects the Altis Micro to a comp ter via USB
COM – Molex connector for connection with telemetry eq ipped receivers as well as
f t re additional feat res
Fig 1: Connectors of your Altis Micro
AerobTec Altis Micro User Man al 4
Wire color Signal
brown Ground
red Positive power supply
orange R/C signal
Table 1: Colors of the connector wires
Mo nting in the aircraft
Since Altis Micro ses atmospheric press re for its meas rement, it has to have open access to the
o tside atmosphere. It m st not be completely sealed inside the f selage or other box. As most standard
R/C aircraft are not f lly sealed, it is s ally not necessary to do any special modifications for installation.
The Altis Micro can simply be p t in a free space inside the f selage.
If the nit is mo nted o tside the aircraft, the location m st be caref lly considered. The nit m st be
mo nted away from the airflow ca sed by the propeller.
Avoid mo nting yo r Altis Micro on parts of the plane that might become hot d ring operation.
Connection for data logging only
If the Altis Micro device is sed p rely as a logging device, connect the device to any free receiver channel
as shown in Fig 2. The signal polarity m st be observed as shown in Table 1.
Fig 2: Connection scheme for data logging only (FREE free receiver channel)
Competition connection with internal BEC
For competition se (like F5J FAI, ALES, etc.) the JR inp t cable has to be connected to the R/C receiver,
and the JR ESC cable has to be connected to the o tp t connector on the main meas ring nit board.
See Fig 3. The signal polarity m st be observed as shown in Table 1.
AerobTec Altis Micro User Man al 5
Fig 3: Connection scheme for competition use (ESC - electronic speed controller, THRO -
throttle receiver channel)
Connection with external BEC
If yo se a separate power so rce for yo r receiver or a battery eliminator circ it (BEC), yo sho ld
make s re to separate yo r power s pply from yo r ESC and the Altis Micro. This is done by
disconnecting the red wire from the ESC connector. This is not s ally necessary for “Opto” ESCs. The
disconnected red wire m st be ins lated to ens re that it does not ca se any short circ it or other
problems. See Fig 4.
Fig 4: Connection of Altis Micro with BEC
Connection for telemetry
Some radio systems provide telemetry f nctions. These f nctions allow wireless transmission of certain
data from the aircraft d ring the flight and display it on yo r Tx or monitor screen. The Altis Micro has
COM connector reserved for this p rpose. Use a Molex/JR telemetry cable (sold separately) to connect
yo r Altis Micro to the telemetry inp t of yo r receiver. The schematic in Fig 5. shows the direct connection
of Jeti model Ex, M ltiplex MSB and Gra pner Hott. Some other brands are s pported sing Telemetry
Converter FF or Telemetry Converter HS.
AerobTec Altis Micro User Man al 6
Fig 5: Telemetry connection
USB connection
When yo wish to download yo r logged data to a comp ter or change the settings of yo r Altis Micro,
connect the Altis Micro sing a standard micro USB cable (sold separately) to a comp ter with Windows
XP (or newer) operating system. See Fig 6. When yo connect yo r Altis Micro for the first time, the
comp ter sho ld install the drivers a tomatically. Yo need to have the Altis Flight Manager program
installed in yo r comp ter to display any stored data and make changes to yo r settings.
Fig 6: USB cable connection
5. Altis Micro LED indication of state
A Light emitting diode (LED) is sed to indicate state of yo r Altis Micro.
The following states are available:
DO NOT DIS ONNE T
…................................
LED is flashing very q ickly. In this state Altis Micro writes some critical data to its internal memory.
AerobTec Altis Micro User Man al 7
Disconnection of the device might ca se data corr ption.
USB mode
– – – – – – – – – – – – – – – – – –
LED flashes once per second. It indicates the state when Altis v4 is connected to the comp ter.
F5J / Max height mode
When there is no other mode active, Led indicates either maxim m height or F5J start height. This is
determined by LED Display option.
The chosen height is indicated in the following form. Each digit is indicated by a corresponding n mber of
short flashes. Zero is represented by a long flash. Digits are separated by a short pa se, while the altit de
is repeated permanently and separated by a long pa se.
See the following examples:
– – – – – – – – – – – – – – – – – – – – – – – – 246m
– –––– – – – – – – – – –––– – – – – – – – 107m
Firmware upgrade
The progress of firmware pgrade is indicated, too.
There is a constant period of flashing, b t the length of the imp ls is increasing. So in the beginning only a
very short flash appears. In the end of the, the flash is long while the pa se is very short.
. - – –– ––– ––––– –––––––
Backup frimware
– –––– – –––– – ––––
If the firmware pgrade is not finished correctly, a back p firmware is activated.
6. Work with Altis Micro in the Altis Flight Manager
The AerobTec Flight Manager (AFM) is a PC application for Windows which allows yo to comm nicate
with Altis Micro and other devices made by AerobTec and to display and process the flight data recorded
by them.
Altis Flight Manager can be downloaded from http://www.aerobtec.com/s pport/download/
Note: There is a separate man al for AFM. However, the following pages describe how to set p yo r Altis
Micro according to yo r needs.
In order to connect to the device click Tools -> Device or Device icon on the toolbar. A window will appear.
See Fig 7. Choose Altis Micro. AFM then a tomatically connects to yo r Altis Micro. If there is more than
one Altis Micro connected to yo r comp ter, yo will be asked to choose which one yo wish to connect.
When connected, Altis Micro screen window will be displayed.
AerobTec Altis Micro User Man al 8
Fig 7: Device choosing window
Altis Micro window
There are two parts of the window. The pper part shows general information abo t the device – its
firmware version, serial n mber and sed memory.
The bottom part of the window is sed for settings.
Downloading data
In order to access the logged data from yo r Altis Micro, se the Download data b tton. Once the data is
downloaded, yo can close the Device window and work with the data.
Settings
There are many possible config rations for the Altis Micro. Yo can set yo r Altis Micro according to yo r
needs. This is done by sing the settings tabs in the bottom part of the window.
There are several tabs:
Logging Settings (Fig 8) – Here yo can set how yo wish to store the flight parameters to yo r device
memory. The basic parameter, Sample time, determines how freq ently the parameters will be logged.
Yo can set which parameters yo wish to log. Yo can log altit de, temperat re of the device (note: the
device is s ally several degrees warmer than its environment), inp t throttle PWM (signal from the R/C
system), o tp t throttle (signal to ESC) and the voltage on board (the voltage Altis Micro is powered from).
Note that the more parameters yo log or the lower the sample time is, the more memory it cons mes.
However, there is memory eno gh to log abo t 15 ho rs of data when logging almost all available
AerobTec Altis Micro User Man al 9
parameters with a Sample time of 0,1s. With different settings yo can log p to several days of data.
Yo can choose also a trigger type – this determines when yo r device starts logging. There are the
following options:
•Always on – Data logging begins once the device is initialized
•RC trigger – When Altis Micro is connected to a receiver channel controlled by a switch on yo r
R/C transmitter. Yo will activate the logging man ally by t rning this channel on. Note that this
option is not available for some of the competition settings.
•Altit de trigger – The device starts logging when the plane reaches a certain altit de. It is possible
to set yo r desired altit de.
Overwrite old files lets the device to erase old files in case the memory is f ll.
Fig 8: Logging settings
ompetition settings (Fig 9) – There are several pre-programmed standard competitions. Yo can
simply choose the one yo want from the Competition Type list. This choice sets the proper val es of all
necessary parameters.
Of co rse, yo can c stomize the parameters according to yo r needs. For example, yo can set a motor
switch at certain altit de or at certain time.
Meaning of General competition settings parameters:
Altitude switch – 10s meas ring window starts when plane reaches preset altit de
Time switch – 10s meas ring window starts when preset timer is timed o t
Altitude start – competition starts when altit de is higher or eq al to 5meters
Throttle start – competition starts when throttle o tp t is higher than 1200 s
Throttle switch – competition stops when throttle o tp t goes nder the 1180 s
F5J FAI / F5J Height measurement – will meas re start altit de as defined by F5J FAI r les
F3K mode – meas re highest reached altit de on every throw, trigger altit de defining new throw is eq al
or higher to 5 meters
AerobTec Altis Micro User Man al 10
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