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Diffstat (limited to 'doc/usage.inc')
| -rw-r--r-- | doc/usage.inc | 142 |
1 files changed, 130 insertions, 12 deletions
diff --git a/doc/usage.inc b/doc/usage.inc index cc694dda..b2ab0c27 100644 --- a/doc/usage.inc +++ b/doc/usage.inc @@ -50,6 +50,122 @@ firing when in the Off position. The switch is in-line with the positive battery terminal. + === Understanding Beeps + + Altus Metrum flight computers include a beeper to + provide information about the state of the system. + 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. + + 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. + + .AltOS Modes + [options="border",cols="1,1,2,2"] + |==== + |Mode Name + |Abbreviation + |Beeps + |Description + + |Startup + |S + |battery voltage in decivolts + |Calibrating sensors, detecting orientation. + + |Idle + |I + |dit dit + |Ready to accept commands over USB or radio link. + + |Pad + |P + |dit dah dah dit + |Waiting for launch. Not listening for commands. + + |Boost + |B + |dah dit dit dit + |Accelerating upwards. + + |Fast + |F + |dit dit dah dit + |Decelerating, but moving faster than 200m/s. + + |Coast + |C + |dah dit dah dit + |Decelerating, moving slower than 200m/s + + |Drogue + |D + |dah dit dit + |Descending after apogee. Above main height. + + |Main + |M + |dah dah + |Descending. Below main height. + + |Landed + |L + |dit dah dit dit + |Stable altitude for at least ten seconds. + + + |Sensor error + |X + |dah dit dit dah + |Error detected during sensor calibration. + |==== + + === Turning On the Power + + Connect a battery and power switch and turn the switch + to "on". The flight computer will signal power on by + reporting the battery voltage and then perform an internal self + test and sensor calibration. + + Once the self test and calibration are complete, there + are two modes that an Altus Metrum flight computer can + operate in: + + 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 + 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 + the flight computer, download data or display + the current state. + + 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. + + For EasyMini, if the USB cable is connected to a + computer, it will enter Idle mode. Otherwise, it will + enter Flight/Pad mode. + + 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. + + You can see in <<_understanding_beeps>> + how to tell which mode the flight computer is in. + === Using an External Active Switch Circuit You can use an active switch circuit, such as the @@ -63,13 +179,14 @@ === Using a Separate Pyro Battery - As mentioned above in the section on hooking up pyro - charges, one lead for each of the pyro charges is connected - through the power switch directly to the positive battery - terminal. The other lead is connected to the pyro circuit, - which connects it to the negative battery terminal when the - pyro circuit is fired. The pyro circuit on all of the flight - computers is designed to handle up to 16V. + As mentioned above in <<_hooking_up_pyro_charges>>, one + lead for each of the pyro charges is connected through + the power switch directly to the positive battery + terminal. The other lead is connected to the pyro + circuit, which connects it to the negative battery + terminal when the pyro circuit is fired. The pyro + circuit on all of the flight computers is designed to + handle up to 16V. To use a separate pyro battery, connect the negative pyro battery terminal to the flight computer ground terminal, @@ -78,7 +195,8 @@ computer. When the pyro channel fires, it will complete the circuit between the negative pyro terminal and the ground terminal, firing the igniter. Specific instructions on how - to hook this up will be found in each section below. + to hook this up for each flight computer will be found + in the section below for that flight computer. === Using a Different Kind of Battery @@ -89,7 +207,7 @@ [WARNING] TeleMega, EasyMega and TeleMetrum are only designed to - use 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. + 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. |