Olimex Support Forum

Microcontrollers => MSP430 => Topic started by: zografop on July 10, 2019, 06:31:33 PM

Title: MOD-PULSE & UART export data
Post by: zografop on July 10, 2019, 06:31:33 PM
Dear Olimex Community,

I have recently purchased the following items:

1) Olimex MSP430FG439
2) Olimex MOD-USB-RS232
3) SPO2-CABLE-NELLCOR-SENSOR
4) TI MSP-FET Flash emulator tool

So far I have managed to setup them correctly and the measurements seem fine using PulseOxMonitor.

However, I would like to also have the measurements independently(e.g., in a .csv file), in order to graph them or perform some post-processing on them.

I tried using putty(connected the proper COM port, baud rate, parity bits, flow control etc.) but I am not getting any values.

Could you please advise?

Thank you in advance!
Title: Re: MOD-PULSE & UART export data
Post by: LubOlimex on July 11, 2019, 10:33:11 AM
Strange, maybe the putty settings have some problem, try another serial software. Typically you should get some numbers like:

0
255
56
126
93
0
255
49
126
93
0
255
42
...

Are you sure that the PulseOxMonitor is working fine?
Title: Re: MOD-PULSE & UART export data
Post by: zografop on July 11, 2019, 07:52:16 PM
Strange, maybe the putty settings have some problem, try another serial software. Typically you should get some numbers like:

0
255
56
126
93
0
255
49
126
93
0
255
42
...

Are you sure that the PulseOxMonitor is working fine?
I was expecting the values you posted  :(

The values printed on the Olimex board screen seem correct, and so is the output on the PulseOxMonitor gui.

I also used minicom as a serial monitor. Still getting garbage.

Just to be on the safe side, the connection details are:
Baudrate: 115200
Databits: 8
Stopbits: 1
Parity: None
Flow control: None
Title: Re: MOD-PULSE & UART export data
Post by: LubOlimex on July 12, 2019, 11:18:25 AM
If you have any Arduino board laying around, use that. My tests today with OLIMEXINO-32U4 went pretty smooth. I used the code and instructions here: https://www.olimex.com/Products/Modules/Biofeedback/MOD-PULSE/resources/MOD-PULSE-example.zip

Here are two pictures one showing my hardware setup and the other the software readings:

https://imgur.com/a/DtHkFih
Title: Re: MOD-PULSE & UART export data
Post by: zografop on July 12, 2019, 08:48:58 PM
If you have any Arduino board laying around, use that. My tests today with OLIMEXINO-32U4 went pretty smooth. I used the code and instructions here: https://www.olimex.com/Products/Modules/Biofeedback/MOD-PULSE/resources/MOD-PULSE-example.zip

Here are two pictures one showing my hardware setup and the other the software readings:

https://imgur.com/a/DtHkFih

Thank you!! The pictures were really helpful.

It is working perfectly now  ;)