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Unread 08-07-2015, 18:36
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Re: [FTC]: FTC Game Manual for 2015-2016?

Quote:
Originally Posted by Sasha View Post
According to documentation on modern robotics website:
http://modernroboticsinc.com/core-de...rface-module-2
the core device interface module can provide up to 150mA at 5V (total to all ports). This should be more than enough for usual sensors (e.g, gyro or distance sensor).
So say we want to supply 25mA to an arduino (a typical draw), do
we hook it up to one of the digital out ports? The documentation also
says Digital current limit: 220 ohm resistor.

Using I = V/R, I = 5/220 = .0227A, or roughly 23mA.

Am I reading this correctly then that we should not draw more
than 23mA out of any single digital port?
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