Which Arduino?

Projects General Guidance
1

Hi Community,

I have an urgent question that has to be answered, and it would be extremely helpful if I could get a reply as soon as possible (Sorry if I feel selfish or rushed). I am currently working on a wearable device that measured cardiovascular data; heart rate, sp02 and that stuff.

I am also making a compatible Android app to collect the data, and a Bluetooth module will send the data wirelessly. I currently have two sensors, and they will be on a wristband that I will build soon.

As you may have noticed, an ordinary Arduino Uno would not fit on a wrist. I do not know which Arduino model to use. I know such miniature kinds such as the Nano and the Pro Mini, but don't know which one is the more fitting kind. Based on my project details, which Arduino model would work for this project? This is a pretty general question, and please feel free to ask me more details about the project if you don't understand. ANY REPLIES ARE MUCH APPRECIATED :).

Thanks.

2

I would use anArduino micro.

3

Adafruit has a Arduino Micro compatible (same microcontroller as the Micro, but running at 8MHz instead of 16MHz) with Bluetooth and battery connecter and charging circuit : Adafruit Feather 32u4 Bluefruit LE : ID 2829 : $29.95 : Adafruit Industries, Unique & fun DIY electronics and kits

4

search around for wearable arduino.