Altus Metrum flight computers include a beeper to
provide information about the state of the system.
+ ifdef::telemini[]
TeleMini doesn't have room for a beeper, so instead it
uses an LED, which works the same, except for every
beep is replaced with the flash of the LED.
+ endif::telemini[]
- Here's a short summary of all of the modes and the beeping (or
- flashing, in the case of TeleMini v1) that accompanies each
- mode. In the description of the beeping pattern, “dit” means a
- short beep while "dah" means a long beep (three times as
- long). “Brap” means a long dissonant tone.
+ Here's a short summary of all of the modes and the
+ beeping
+ ifdef::telemini[(or flashing, in the case of TeleMini v1)]
+ that accompanies each mode. In the description of the
+ beeping pattern, “dit” means a short beep while "dah"
+ means a long beep (three times as long). “Brap” means
+ a long dissonant tone.
.AltOS Modes
[options="border",cols="1,1,2,2"]
|Idle
|I
|dit dit
- |Ready to accept commands over USB or radio link.
+ |Ready to accept commands over USB
+ ifdef::radio[or radio link.]
|Pad
|P
controlling the flight or transmitting telemetry
signals, but no record of the flight will be
stored in on-board flash.
+
+ |Additional Igniters
+ |four very short beeps
+ |Continuity indication for the four additional pyro
+ |channels on TeleMega and EasyMega. One high tone for
+ |no continuity, one low tone for continuity. These are
+ |produced after the continuity indicators for the two
+ |primary igniter channels.
+
|====
+ ifdef::radio[]
For devices with a radio transmitter, in addition to
the digital and APRS telemetry signals, you can also
receive audio tones with a standard amateur
find the rocket using RDF techniques when the signal
is too weak to receive GPS information via telemetry
or APRS.
+ endif::radio[]
=== Turning On the Power
Flight/Pad::
The flight computer is waiting to detect
launch and then fly the rocket. In this mode, the USB
- link is disabled, and the radio goes into
- transmit-only mode. The only way to get out of this
+ link is
+ ifdef::radio[disabled, and the radio goes into transmit-only mode.]
+ ifndef::radio[disabled.]
+ The only way to get out of this
mode is to power the flight computer down.
Idle::
The flight computer is ready to communicate over USB
- and in packet mode over the radio. You can configure
+ ifdef::radio[and in packet mode over the radio.]
+ You can configure
the flight computer, download data or display
the current state.
+ ifdef::telemetrum,easymega,telemega[]
For flight computers with accelerometers (TeleMetrum,
EasyMega and TeleMega), the mode is selected by the
orientation of the board during the self test
interval. If the board is pointing upwards as if ready
to fly, it will enter Flight/Pad mode. Otherwise, it will
enter Idle mode.
+ endif::telemetrum,easymega,telemega[]
+ ifdef::easymini[]
For EasyMini, if the USB cable is connected to a
computer, it will enter Idle mode. Otherwise, it will
enter Flight/Pad mode.
+ endif::easymini[]
+ ifdef::telemini[]
For TeleMini v1.0, if a packet link is waiting to
connect when the device is powered on, it will enter
Idle mode, otherwise it will enter Flight/Pad mode.
+ endif::telemini[]
You can see in <<_understanding_beeps>>
how to tell which mode the flight computer is in.
flight computer. These require three connections, one to
the battery, one to the positive power input on the flight
computer and one to ground. Find instructions on how to
- hook these up for each flight computer below. The follow
+ hook these up for each flight computer below. Then follow
the instructions that come with your active switch to
connect it up.
=== Using a Different Kind of Battery
- EasyMini and TeleMini v2 are designed to use either a
+ EasyMini
+ ifdef::telemini[and TeleMini v2 are]
+ ifndef::telemini[is]
+ designed to use either a
lithium polymer battery or any other battery producing
between 4 and 12 volts, such as a rectangular 9V
battery.
+ ifdef::telemega,easymega,telemetrum[]
[WARNING]
TeleMega, EasyMega and TeleMetrum are only designed to
operate off a single-cell Lithium Polymer battery and
cannot be used with any other kind. Connecting a
different kind of battery to any of these will destroy
the board.
+ endif::telemega,easymega,telemetrum[]