Using the altimeter with your elogger v4 or v3 – Eagle Tree Altimeter V4 Standalone MicroSensor User Manual

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Copyright © 2011 Eagle Tree Systems, LLC

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For standalone mode (not connected to an eLogger), connect the Standalone Cable to the gold pins of the Altimeter, as shown in Figure 1.
The polarity of the connection is as follows:
RED = Positive (Vdd)
BLACK = Negative (ground)

Note that the RED wire of the standalone cable corresponds with the red dot on the label.

The JR/Universal servo end of the Standalone Cable connects to a spare Receiver channel or small battery. Note that the voltage must be
between about 4V and 16V. Do not exceed 16V!

IMPORTANT: Ensure that you connect the Standalone Cable with the correct polarity, or the Altimeter could be damaged,
voiding the warranty! Note that in Standalone Mode, the 4 wire cable built into the Altimeter must NOT be connected to anything!

Configuring Metric vs English Units in Standalone Mode

When powered on, the LED readout will briefly display “0” if the unit is configured for English (Feet), or will display a “1” if configured for
metric (Meters). The factory default configuration is Feet.

To switch between English and metric units, connect the
Standalone Cable as described above, but don’t power the
Altimeter. Then, connect a small piece of wire (like a paperclip)
between the unconnected pins of the Standalone Cable’s 4 pin
connector, corresponding to the brown and yellow dots on the label,
as shown in Figure 3. This creates a jumper between the brown
and yellow labeled pins.

Then, power the Altimeter via the Standalone Cable. A “0” will
then flash a few times to indicate that English units are configured,
or a “1” will flash if Metric units are configured. If the wrong units are configured, just disconnect the power from the Altimeter and
reconnect it.

Once the desired units are configured, disconnect from power and remove the wire jumper. Then, when reconnected to power, the desired
units should be displayed briefly (“0” or “1”).

Reading Altitude in Standalone Mode

When the Altimeter is powered on, after the Units setting is displayed (“0” or “1”), the highest altitude attained during your last flight is
repeatedly displayed, one digit at a time, on the LED. For example, if the highest altitude attained was 320 Feet, “3 – 2 – 0” will flash
repeatedly on the LED, with a pause (blank LED) after the altitude is completely displayed, but before it is displayed again.

To reset the max trigger, just turn power off and on to the MicroSensor. Then, after landing from your next flight, the highest altitude
attained during that flight is displayed automatically, overwriting the highest altitude from your prior flight (even if the new highest altitude
is less than the prior flight’s highes altitude). Note that an altitude of at least 60 Feet (18 Meters) must be attained, before a new
highest altitude is displayed.

The highest altitude of your last flight is automatically saved, so that when you turn the unit back on, that altitude is displayed.

For example, if you fly and reach a max altitude of 100 Feet, when you land “1 – 0 – 0” will be displayed. Then, when you turn power off
and on, “1 – 0 – 0” will again be displayed. If you then fly again and reach an altitude of 500 Feet, “5 – 0 - 0” will be displayed when you

Using the Altimeter with your eLogger V4 or V3

Windows Software and Firmware Update

To use the Altimeter, you must update your software to
Eagle Tree Windows Software version 9.45 or later.
To update, download the latest software from the
support page of our website, located at

. After

downloading and installing the software, the firmware
of your eLogger will need to be updated. To upgrade
your firmware, just click “Hardware, Firmware Control”
and click the Update button for the eLogger.