Hi Guys,
I was hoping that someone could help me out again. I've just bought myself a blood pressure monitor and I would like to be able to have the machine controlled (on/off and take reading) and sending data to an arduino unit. I've seen that its possible but none of the youtube videos that I've seen so far explain how its done.
I have an arduino uno and nano and a Xcellent Global Wrist Digital Blood Pressure Monitor.
Any thoughts?
Cheers guys,
J
I googled this: https://www.amazon.com/Xcellent-Global-Digital-Pressure-Capacity/dp/B01H1U6KPK
It doesn't look like it has some serial output for Arduino to use. So I am afraid you will have to reverse engineer the pressure monitor. If you are very lucky there will be MCU you know/can find a datasheet with code that is not locked. Otherwise you need to discover how is start button press signaled to the MCU (easy) and how the MCU sends data to the display (difficult). Connect Arduino to signal ways and send button pressed signal and read what the device send to the display.
Maybe if you know hoe it works a better way would be to use the monitor's hawdware (preassure cuff, motor, possibly preassure sensor) and discard the controlling electronics.
Thanks for the tips Smajdalf 
I actually just managed to figure out how to get the device to switch on and off and run using the arduino uno. Now I just need to find out how to get the data to export to the uno. But as a last resort I could use the arduino to tell the device to store the results onto its on board memory