structure7 / fridgeTemps

Monitoring of a refrigerator and freezer's temperature to an OLED display.
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Door status: Tap LED (comes on with fridge only) #19

Closed structure7 closed 7 years ago

structure7 commented 8 years ago

Hey-ooo! LED is ~2VDC and off when door is closed. For "high pins" might need to BJTs.

Looks like I have a bipolar LED situation (possibly). In which case I need to test what negate voltage does to a BJT gate.

structure7 commented 8 years ago
     O <-LED
|    |    |
?    ?   Grn

Green LED = 2VDC

structure7 commented 8 years ago

Bah... cool, but fridge door only (no freezer). Kind of seeming foolish!