Category Archives: Hardware

Continuous Bluetooth LE data transfer to iPhone using the RedBear BLE shield

This is an update on our work on creating a bluetooth home health monitor in my class BME 440/441 “Senior Design in Biomedical Engineering”. The idea is to create an iPhone app that can connect to several Bluetooth LE sensors (ECG, EEG, Galvanic Skin response) and then display and record the data. There will also […]

July 16, 2012
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Hardware

MOSFET LED Driver

In the past few months we switched all our microscopy illumination to LEDs. LEDs have many advantages: 1) they are cheap ( few dollars a for high powered LED ); 2) they come in pretty colors; 3) they can switch very fast. This post will explore how you can control and switch LEDs fast. Specifically, […]