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On-package Processor - Basic Stamp 2

SPECIFICATIONS

Processor Speed	20 MHz
Program Execution Speed	~4,000 instructions/sec.
RAM Size	32 Bytes (6 I/O, 26 Variable)
EEPROM (Program) Size	2K Bytes, ~500 instructions
I/O Pins	16 +2 Dedicated Serial
Voltage Requirements	5 - 15 vdc
Current Draw at 5V	3 mA Run / 50 µA Sleep
PBASIC Commands	42
Size	1.2"x0.6"x0.4"

We choose this processor for data logging because it was extremely low power. We also have a Basic Stamp 2pe which has more onboard memory that will allow us to save data longer if necessary.