Wireless pulse oximeter design using MSP430

pulse oximeter design

HI!

I am last year student and I am working under my diploma - Design of a Wireless Pulse Oxymetry device.
Looking for sources about this project, I've found one very interesting project, based on the MSP430 FG437 MCU application datasheet from TI:
**broken link removed**.
I ordered MSP-FET430U80 development tool, made and adapter from on-board connectors to analog components and connectors to sensor and LCD. Please take look on the photo attached. As a Bluetooth unit I planed to use smallest and simple to use LMX9838 module, available as fee samples from National.

Unfortunately, this device was born dead, all schematics are OK, but I could not find errors is supplied sample code. I think, some mistakes are taking place....

Does anybody tried this SLAA247 with MSP430 and got any good results?

wireless pulse oximeter

Any ideas?

Re: wireless pulse oximeter

hey what happened to your project?

Hello! Project was done for about one year ago. Please find some fotos below...
I open to questions!

Technical data:
•Signal type……………………PG;
•Sensor type………………..Nellcor DB9 probe;
•Wave length………………..660nm / 940nm
•SpO2 range ………………..70-100%;
•Pulse range………......…..25-250 beats/min;
•SpO2 accuracy..…………. 2%;
•.Pulse accurac.………...±2 удара в мин;
•Power supply…………..…..LiPo 700 mAh;
•Charge………………………….via USB
•Work time………….…….….35h (14h - TX mode);
•Transiever………………..… Bluetooth 2,0 EDR.
•RX power…………….......…80 dBm;
•TX power…………………....0 dBm;
•Tx range… ………………..…up to 20 meters;
•Size...…………………...…….38х58х18mm
•Weight....................... 55gr (without probe)

Hi kreitzz,

what did you use for as your photodetector? photodiode or photoresistor

I used Nellcor type sensor with DB-9 connector, manufactured by Launch, China. It has a photodiode inside.

@kreitzz , Kindly look in the inbox here

I know this is an old thread but why not try.

I have a question for you kreitzz. Did you use the example code provided from TI or did you write up your own? Also, would you say the MSP-FET430U80 development tool kit was worth the cost to speed up development? I have to make one of these myself.

JGK