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Commit d7b29ff6 authored by David Preiss's avatar David Preiss
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Update README.md

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......@@ -8,8 +8,8 @@ The caveats are that these calipers are only running at only about 2sps, so not
Here's a [good reference](https://sites.google.com/site/marthalprojects/home/arduino/arduino-reads-digital-caliper) for getting initial results. I made a few changes in code including printing binary packets for debugging, and flipping all of the reads (we are using a level shifter not a transistor). See below for a simple breadboarded circuit to get up and running.
<img src="./images/caliper_breadboard.png" height=600 />
<img src="./images/calipers_breadboard.png" height=600 />
Raw scope readings (reading a 0.01mm) can be seen below, transmitted over seven 4-bit chunks. The readings are fixed point with the two LSB in decimal being devoted to 100 and 10 um significant figures. The 21st bit is devoted to measurement sign, and one of the remaining bits is used for unit conversion, while some are unused.
<img src="./images/caliper_scope.png.png" height=600 />
<img src="./images/caliper_scope.png" height=600 />
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