R-DAS Tiny user’s manual V1.4
©2007 AED Electronics
Mounting
Two holes are provided to mount the R-DAS inside the rocket. The unit is supplied with stand-offs with metric
M3 screw thread. If required these can be replaced by user supplied mounts. Make sure the unit is mounted
with the arrow labeled ‘UP’ pointing upwards to the nose cone.
Buzzer
The R-DAS Tiny has a buzzer with status signaling that is very similar to the R-DAS Compact and Classic. The
only difference is the signal for igniter discontinuity. A discontinuity in any of the for igniters is now reported by
two buzzes. In case of a continuity error, use the red LED’s to find out what igniter has a continuity error.
Table 2: Summary of different acoustic signals.
BEEPS (high frequency)
long
beep
bootloader running (at start-up)
•
•
•
•
•
•
•
•
•
•
•
•
•
•
fast beeps (continuous)
uploading firmware
•
•
•
•
•
short beep (every second)
R-DAS standby, ready for launch
•
•
•
short beep (every three seconds)
R-DAS in monitor mode (during download
and configuration)
••
••
••
••
two short beeps
R-DAS detected lift-off, data acquisition
busy
BUZZES (low frequency)
long
buzz
at start-up: memory error
••
••
••
••
two buzzes
igniter discontinuity error
•••
•••
•••
•••
three buzzes
breakwire error (breakwire triggering
disabled)
••••
••••
••••
••••
four buzzes
external hardware error; hardware that was
configured is not found
•••••
•••••
•••••
five buzzes
pressure transducer out of range at power-
up (offset)
••••••
••••••
••••••
six buzzes
accelerometer out of range at power-up
(offset and/or self-check), g-switch disabled
Power/Igniter connector
The power/igniter connector has the following functions:
1. Power supply to the board.
2. Power supply to the igniter output stages.
3. Igniter
Safe/Arm.
4. Igniter
outputs.
5. Break wire connection.
The power/igniter connector allows for the quick installation of an R-DAS in each of the owner’s rockets by
simply leaving the wiring loom (connector with pigtail) inside the rocket. The looms can be ordered from us or
from an electronics supply company such as Conrad (part# 74 31 00-89).
Simple 3-step wiring instructions (see Fig. 2):
3
