R-DAS Tiny user’s manual V1.4
©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:
•
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
Atmel AVR Risc processor
Memory
Flash memory size
1024
kB
Acceleration transducer
Type
Range
Resolution
Analog Devices
-50 to + 50
0.1
g
g
Pressure transducer
Type
Range
Resolution
Motorola
20 to 105
0.09
kPa
kPa
External analog inputs
Nr. of channels
Input span
Input impedance
6
0 to 5.0
10 to 50
V
k
Ω
Digital inputs
Nr. of inputs
Input specifications
4
compatible with TTL/HCT drivers
Triggering
G-switch
Breakwire
>2.5 g for 0.25 sec
make or break contact
Igniter output stage
Nr. of output stages
Current
Igniter supply options
Continuity test current
3 (drogue and main)
Max. 2.5
Capacitor 2200
µ
F and/or External power supply
< 1
A
µ
A
Power supply
Voltage
Current
9 to 15
30 – 50
V
mA
1
