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Extension Explorer 16

3 bytes removed, 22:30, 26 September 2014
/* LED's for crossroad */
** average current : I = 20mA
 
 
 
=== Formula ===
* calculation of resistance RD <math>\frac{U_r}{I} = \frac{VDD - U_{LR}}{I} = \frac{3.3V - 1.8V}{10mA}</math> = 150mA
Philoux
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