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AED Electronics R-DAS Tiny User Manual

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R-DAS Tiny User's Manual
Scope
This document is an addendum to the R-DAS manual and is specific to the R-DAS Tiny (hardware V4.x). For
general concepts about the R-DAS, please see the R-DAS Manual.
New features
The new R-DAS has an exiting set of new features. The most important ones are:
•
Four independent igniter output ports with two event-programmable outputs
•
Dual axis accelerometer
•
Small printed circuit board (28x80mm / 1.1"x3.15"). Fits in 29mm rockets!
•
USB interface: super-fast data download
•
Reduced power usage
•
More storage memory
•
16x more processing power than the Classic/Compact
Specifications
The specifications of R-DAS Tiny are summarized in Table 1.
Table 1: R-DAS Tiny Specifications
Processor
Type
Memory
Flash memory size
Acceleration transducer
Type
Range
Resolution
Pressure transducer
Type
Range
Resolution
External analog inputs
Nr. of channels
Input span
Input impedance
Digital inputs
Nr. of inputs
Input specifications
Triggering
G-switch
Breakwire
Igniter output stage
Nr. of output stages
Current
Igniter supply options
Continuity test current
Power supply
Voltage
Current
Atmel AVR Risc processor
1024
Analog Devices
-50 to + 50
0.1
Motorola
20 to 105
0.09
6
0 to 5.0
10 to 50
4
compatible with TTL/HCT drivers
>2.5 g for 0.25 sec
make or break contact
3 (drogue and main)
Max. 2.5
Capacitor 2200µF and/or External power supply
< 1
9 to 15
30 – 50
R-DAS Tiny user's manual V1.4
©2007 AED Electronics
kB
g
g
kPa
kPa
V
kΩ
A
µA
V
mA
1

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Summary of Contents for AED Electronics R-DAS Tiny

  • Page 1 ©2007 AED Electronics R-DAS Tiny User’s Manual Scope This document is an addendum to the R-DAS manual and is specific to the R-DAS Tiny (hardware V4.x). For general concepts about the R-DAS, please see the R-DAS Manual. New features The new R-DAS has an exiting set of new features. The most important ones are: •...

  • Page 2: User Interface

    DAS Compact/Classic. 2. USB Connector (new): To connect the R-DAS Tiny to the PC for downloading flight data, configuration and firmware upgrades. 3. Power/Igniter Connector (new): This is an 8-pin connector to supply processor and igniter power and 4 igniter outputs. For a detailed description see further.
  • Page 3 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.
  • Page 4 4. Vign - Yellow Igniter supply 5. Drogue - Orange Drogue igniter Main igniter 6. Main - Red 7. Igniter 3 - Brown Igniter 3 8. Igniter 4 - Black Igniter 4 Pyro outputs Figure 2: Standard R-DAS Tiny wiring.
  • Page 5 8. Igniter 4 - Black Breakwire Pyro outputs Figure 3: R-DAS Tiny wiring with optional igniter power supply, breakwire, and un-used Pyro 3 output. Note: Earlier versions of the wiring loom had a white #1 wire color. LED’s There are four red LED’s on the R-DAS board. These LED’s are used to indicate continuity of the igniters.
  • Page 6 R-DAS Tiny user’s manual V1.4 ©2007 AED Electronics Tech tips Buzzer volume The buzzer volume can be set with the following command: c buzz x<enter> where x is 0 for no buzzer, 1 for mid-lo volume, 2 for mid-hi volume and 3 for maximum volume (factory default). The buzzer volume preference...