Accelerometer

Extracting Bio-impedance Parameters from Measured Data

First post of the new year! I figured, I’d start with something interesting.

Over winter break, I went home to the lovely warmth of West Africa, and had an epiphany of sorts as to how to extract the resistive values for intracellular water (ICW), extracellular water (ECW) and the capacitive value for the cell membrane after performing a frequency sweep on biological tissue (or model circuit) of interest.

(more…)

Open Source Accelerometer

Heyo! First blog post.

I’ve been working on an open source accelerometer based on BlueGiga’s BLE112 Bluetooth Smart module and Bosch’s BMA250 accelerometer. The circuits I’m using were already pre-made by the classy fellows at Tiny-Circuits.

I plan to eventually release the source code for both the Arduino Sketch and the Android App.

Till then, let these images tide you over.

(more…)