• ### R2-DR, Kevin's dead reckoning robot

- 8 March 2016

Hi, Jordi.

To clarify, I have not made the plans or design files for my robot available. I used some drawings from the R2-D2 Builders Club when designing my robot to make it match the shapes and proportions of the real R2-D2. It's been a while and I don't remember all of the exact drawings I used, but I think I found the ones in "Files > 002-OFFICIAL_BLUEPRINTS > OUTLINE DRAWINGS" to be the most useful.

- Kevin

• ### New product: LPS25H pressure/altitude sensor carrier

- 26 November 2014

Hi, Jeff.

The data for this comparison was taken with a sampling rate of 12.5 Hz for both sensors and all other settings left at their power-on defaults (except for additionally enabling the hardware moving average for some tests); see the enableDefault() function here:
https://github.com/pololu/lps-arduino/blob/master/LPS/LPS.cpp.

- Kevin

• ### Understanding battery capacity: Ah is not A

- 12 March 2014

The capacity of any particular battery also depends on several things other than its size, including its chemistry and manufacturer, but this Wikipedia article lists some typical capacities for common sizes:

http://en.wikipedia.org/wiki/List_of_battery_sizes

- Kevin

• ### Continuous-rotation servos and multi-turn servos

- 9 August 2012

Hi, David.

We don't know of any specific considerations with digital servos, but I think it's going to depend on the particular model of servo, and we haven't tried modifying that one. You should get a pretty good idea of whether it will be practical as soon as you open it up.

- Kevin (engineer at Pololu)

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