Testing the opto-sensor
Testing the opto-sensor (EE-SY313) with black marker pen marks on white paper. The marks needed to be at least 25mm wide. Photo by David Henshall.
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Uploaded on August 19, 2009
Taken on November 29, 2006
Testing the opto-sensor
Testing the opto-sensor (EE-SY313) with black marker pen marks on white paper. The marks needed to be at least 25mm wide. Photo by David Henshall.
1,175
views
0
faves
0
comments
Uploaded on August 19, 2009
Taken on November 29, 2006