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perform 10,000 instructions per second (50 Mhz clock), and can store 82K programs
(16K total), but only able to run one program at a time.
Implementing the Compass module with the Stamp was very easy considering
everything was documented on the Internet3.
3.3 Power Supplies
One criterion behind our project was to design the robots to be completely
autonomous. This means that all devices connected to the robots had to have their own
power supply to avoid the use of a cord. Overall, we had to design two types of battery
packs, one for the Ultra Wideband units, and another to power a hub, which was used to
connect the UWB to the laptops.
3.3.1 UWB
In the beginning stages of the project, the UWB power packs were crucial because
they gave us the ability to test the capabilities of the UWB. When designing the power
packs, we focused on simplicity and on battery life. It would need to put out a 7 Volt and
3 Amp for at least an hour, so we chose regular 7.2 Volt and 3 Amp/hrs RC car batteries.
These would make it
easier to recharge the
batteries. In the long run,
we were able power the
UWB units for about 1.5
hours (Figure 3-5).
Parts Included:
- 7.2 Volt RC
Battery
- 5 Amp Fuse
- Power Switch
Figure 3-5 UWB Power Pack
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