Arduino Forum

Community => Website and Forum => Topic started by: lestofante on Mar 22, 2013, 03:04 pm

Title: Tutoria shif out error
Post by: lestofante on Mar 22, 2013, 03:04 pm
Hi,
in the
http://www.arduino.cc/en/Tutorial/ShiftOut
we can see the shifout chip using the 5V from arduino to light up to 8 led in first example and 16 led in the seconds.

But arduino 5V pin can give at maximum 200mA, and many USB will give at max 100m.

Also the tutorial does never alert the user about power consumption and arduino's regulator limit