Help to build sensor for Polar FS1C watch Answered
I got this watch Polar FS1C as a gift, unfortunately without sensor which is necessary to collect data from heart rate.
I would like to ask you, clever guys, if is it possible to (home)made cheap sensor suitable for Polar FS1C?
I could not buy this sensor in Slovakia in reasonable price so I am trying last chance here, to built it on my own.
Thank you for reply.