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Solar supercap floodsensor using Attiny45

Quick hack to make sure the basement stays dry.

non-iceNon-ICE
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After having some issues with water entering the basement without any form of warning i threw together this little puppy to do some monitoring for me. It is now almost 3 years ago an its still doing its job. I did a control measurement of the caps about a year ago in the wintertime and the voltage was just above 4 Volts. A control today revealed 4.4 volts half way into a cloudy summer day.

floodsensor_bms_attiny45.ino

For running off NiMH Cells

ino - 5.81 kB - 08/02/2017 at 11:50

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pitches.h

library

plain - 657.00 bytes - 08/02/2017 at 11:25

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floodsensor_noBMS_attiny45_supercap.ino

Yes there is a BMS version for running off NiMH cells. This is no that one.

ino - 5.92 kB - 08/02/2017 at 11:25

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  • 2 × 10F Supercaps, 2.7V
  • 1 × Attiny45 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
  • 1 × 5 ish volts solar panel.
  • 3 × 1 Mohm
  • 1 × Buzzer

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