I have a project to help me detect water in the basement. I have both an Argon & Proton. Both are wired the same to D0 and a ground (a wire on each). When you put the 2 wires in water, they are supposed to send an alarm notification.
I recently added an Argon for the capability of using a 3.7V Lithium Ion battery backup if power goes off. I had the code running on a Proton with the USB. When I installed the code on the Argon and use USB, all works fine (although more sporadic than Proton). However, when I run the Argon on battery only (3.7V LI), it doesn’t work. You can touch the 2 wires together on battery power only and it sends the alarm. Stick the 2 wires in water on battery power, they don’t send the alarm.
I suspect it has something to do with the amount (extra) power output by the USB but I’m lost as to how I can fix this. I’m looking for some advice on how to make this work on battery power.
Thanks in advance for your ideas!