Now With Double the Measurement Rate!

A project log for SubPos Ranger

The SubPos Ranger allows you to accurately measure distance or obtain your position indoors for all hobbyist robotics applications.

BleckyBlecky 07/15/2016 at 17:431 Comment

While working on getting the accelerometer to aid the update rate when averaging is enabled, it was discovered that the distance measurements themselves weren't occurring as fast as they should.

It turns out the original Atmel libraries for ranging had quite a large arbitrary delay set (100ms) between each distance calculation for display purposes. This delay has now been removed and it now effectively doubles the measurement rate. This in turn halves the amount of time it takes to reach a desired result, when averaging is performed across a large number of samples. So if you look at the current demo video again, just imagine it running at twice the speed.

How exciting is that!? Free hardware upgrade!

New demo update:


femtoduino wrote 04/03/2019 at 02:15 point

This is really awesome work! If it's OK, I'd like to see if the rtb source can be modified to work on the SAM R21 E. DecaWave modules are nice, but I figure if a FemtoBeacon can get this working without an extra module, it's still a win.

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