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I had been working on a compact health monitoring system which would have ECG, body temperature sensor, glucometer, and a pulse oximeter all put on one single PCB. So far I was successfully able to have ECG, temperature and the glucometer working. Having this was not sufficient, I wanted to send all this data onto an android phone. For this I used HC-06 bluetooth module and had an android app running on the phone to collect and display the data on to its screen. I made use of Amarino's library for communication between Arduino and Android. It was pretty easy to port Amarino from Android to Stellaris and it worked very well! I used Stellaris Launchpad in my project considering that I would be implementing signal processing in future and also it is quite inexpensive This is my entire unit fit in one box. I plan to having the processor on the same board and eliminating the use of bulky launchpad. Can anyone tell me how I could do that? I have never done such a thing before. Just showing off some photographs The step up converter that I used to power up all the circuits in that box. Takes 3.5 to 4V from Li-ion battery (NOKIA) and converts it to 5.1V. Pretty cheap module I found on some chinese website. This is my android app showing my ECG. I can enter my name in the text box and upload the ECG onto the online website. Note: I used Amarino's example SensorGraph and modified it to add the uploading functionality. You can view the database here : http://projectarogya.com/arogya/patients.php This is how my ECG looks online. The php script also does the task of calculating heart rate and putting a time stamp at the time of upload. I am using a simple LM35 temperature sensor. I had to build seperate app for temparature and glucometer. Note: I used Multicolorlamp app from Amarino's website and modified it. Now it is so much modified that its like a completely new app except that the name is still unchanged I have also uploaded a more detailed blog post on http://nuclearrambo.com/wordpress/android-based-wireless-ecg-monitoring-temperature-sensor-glucometer-included/ Because of some problem with ground, I am not able to get a clean output. It fluctuates a lot and hence does not give correct glucose readings. I will add in the explanation about how glucometer works if you people want to hear about it. PS: I had only been reading on this forum. This is my first post here and I thought I would share my project with you all. I am also hoping to produce and sell it once its complete. If anyone's interested in lending a helping hand with design and stuff are totally welcome