Maybe you could use/hack a cheap pulse oximeter sensor perhaps? You would need to find online, or write your own (ardunio) code though to interpret the analogue signal; post op-amp. |
|
Maybe you could use/hack a cheap pulse oximeter sensor perhaps? You would need to find online, or write your own (ardunio) code though to interpret the analogue signal; post op-amp. |
|
Last edited by Highlander; 08-26-2016 at 09:30 AM.
"Reject culture..." "Put the Art pedal to the metal!"
- Terence McKenna
Bookmarks