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tutorials:learn:sensors:cds.html [2010/10/07 19:15]
daigo
tutorials:learn:sensors:cds.html [2016/01/28 18:05] (current)
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   ***Size: **Round, 5mm (0.2") diameter. (Other photocells can get up to 12mm/​0.4"​ diameter!)   ***Size: **Round, 5mm (0.2") diameter. (Other photocells can get up to 12mm/​0.4"​ diameter!)
   ***Price:** [[http://​www.adafruit.com/​index.php?​main_page=product_info&​cPath=35&​products_id=161|$1.00 at the Adafruit shop]]   ***Price:** [[http://​www.adafruit.com/​index.php?​main_page=product_info&​cPath=35&​products_id=161|$1.00 at the Adafruit shop]]
-  ***Resistance range: **200KΩ (dark) to 10KΩ (10 lux brightness)+  ***Resistance range: **200K Ω (dark) to 10KΩ (10 lux brightness)
   ***Sensitivity range:** CdS cells respond to light between 400nm (violet) and 600nm (orange) wavelengths,​ peaking at about 520nm (green).   ***Sensitivity range:** CdS cells respond to light between 400nm (violet) and 600nm (orange) wavelengths,​ peaking at about 520nm (green).
   ***Power supply:** pretty much anything up to 100V, uses less than 1mA of current on average (depends on power supply voltage)   ***Power supply:** pretty much anything up to 100V, uses less than 1mA of current on average (depends on power supply voltage)
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 |**300 - 500 lux**|Sunrise or sunset on a clear day. Well-lit office area.| |**300 - 500 lux**|Sunrise or sunset on a clear day. Well-lit office area.|
 |**1,000 lux**|Overcast day; typical TV studio lighting| |**1,000 lux**|Overcast day; typical TV studio lighting|
-|**10,000–25,000 lux**|Full daylight (not direct sun)| +|**10,​000 ​25,000 lux**|Full daylight (not direct sun)| 
-|**32,000–130,000 lux**|Direct sunlight|+|**32,​000 ​130,000 lux**|Direct sunlight|
  
 ==== Testing your photocell ​ ==== ==== Testing your photocell ​ ====
/home/ladyada/public_html/wiki/data/attic/tutorials/learn/sensors/cds.html.1286478918.txt.gz · Last modified: 2016/01/28 18:05 (external edit)