PulseSensor with arm based device?

[SalvatoreLicitra]

Hi I want to ask you if there is possible to use the library and the examples with a stm32 board (nucleo F401RE) because I saw that the libraries uses the Arduino avr interrupts, but my board is an Arm Cortex one so I cannot use the functions "cli()" and "sei()"; I already try to use "__enable_irq()" and "__disable_irq()" with the "Getting_BPM_to_Monitor" example, but the program never receive the BPM. Is there something that i can do?

[biomurph]

Please update your library to version 1.4.9. I have updated the library to support STM32 boards, including the NUCLEO family. Please reply here if you still have a problem, otherwise close the issue.

[SalvatoreLicitra]

Hi, I have immediately try the new library, but even if now the code compile without errors, it doesn't work, both with interrupts and without them; if I remove the interrupts the code initialize the object with the begin() and print the information, instead if I use the interrups I doesn't receive the print, however in both cases the "getBeatsPerMinute()" return 0 and the "sawStartOfBeat()" throws me out of the "if" branch

[biomurph]

I have an nucleo 32 F401RE here that I will try. Stand by

[SalvatoreLicitra]

Ok, thanks very much,!

[biomurph]

Hi,

I'm able to get the Nucleo to program with Arduino, but I don't have the serial port working yet. Do you have any info on how to get the Nucleo to output serial over the USB port? If not, I will have to dig up an FTDI cable to make a go of it.

[SalvatoreLicitra]

Hi, I'm not sure to understood the question. When the Nucleo board are connected via usb, computer automatically assign the serial port to this, if you use windows you can see that using the panel "device management"; if you don't see the (COM) port assignment you can try to fix it installing the drivers. If the problem is that the code doesn't compile because an error like "Nucleo-64 doesn't recognized" or similar one check if the serial port (COMx if you use windows) is the correct one and select "STLink" as "upload method".

[biomurph]

No, I get that the Nucleo is connected, but at least in my board files the USB is not used as the serial connection. It uses digital IO pins instead. I have an FTDI to get it working. I will try in a bit and let you know the result.

Joel

Making the world safe for robots
www.pulsesensor.com
www.openbci.com

On Wed, May 30, 2018 at 2:19 PM, Salvatore Licitra <notifications@github.com
> wrote:

> Hi,
> I'm not sure to understood the question. When the Nucleo board are
> connected via usb, computer automatically assign the serial port to this,
> if you use windows you can see that using the panel "device management"; if
> you don't see the (COM) port assignment you can try to fix it installing
> the drivers. If the problem is that the code doesn't compile because an
> error like "Nucleo-64 doesn't recognized" or similar one check if the
> serial port (COMx if you use windows) is the correct one and select
> "STLink" as "upload method".
>
> —
> You are receiving this because you commented.
> Reply to this email directly, view it on GitHub
> <https://github.com/WorldFamousElectronics/PulseSensorPlayground/issues/57#issuecomment-393265667>,
> or mute the thread
> <https://github.com/notifications/unsubscribe-auth/AF_jGfMqcj2pm1yfyMRTaKzLgHam5Ebxks5t3uKwgaJpZM4UPf3A>
> .
>

[SalvatoreLicitra]

Ok, I'm waiting for your updates.

[biomurph]

@SalvatoreLicitra I updated the library so that it will work with STM32 boards. There is an example sketch that targets a Nucleo F401RE board. Please check the comments at the top of the sketch for info on how to configure the board parameters in Arduino. I used an FTDI brekaout to make the serial connection, and I found that I could see the Pulse Sensor signal, BPM, and IBI data clearly. Make sure that you power the Pulse Sensor with the same voltage that your Nucleo power jumper is set to.

[SalvatoreLicitra]

Hi, i tried the example and it works, thanks a lot!