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The photoresistor registers about 140k ohms in inside natural light, held under the bike seat.  In the bathroom with the door mostly shut, simulating nighttime, it registers 22M.  Tentative initial ON value: 20Mohm.
 
The photoresistor registers about 140k ohms in inside natural light, held under the bike seat.  In the bathroom with the door mostly shut, simulating nighttime, it registers 22M.  Tentative initial ON value: 20Mohm.
  
βˆ’
Learned a bit of comparator chip circuit theory from David... Have the op amp circuit breadboarded out such that it turns on one LED when the photoresistor is occluded.  Circuit includes a pot for calibration, forming the second voltage divider.
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Learned a bit of comparator chip circuit theory from David... Have the op amp circuit breadboarded out such that it turns on one LED when the photoresistor is occluded.
  
 
Notes on my pots:
 
Notes on my pots:

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