NERP: Difference between revisions
From Pumping Station One
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* [http://elinux.org/RPi_Tutorial_EGHS:GPIO_Protection_Circuits GPIO protection circuits]: different approaches to safely interfacing with RPi pins | * [http://elinux.org/RPi_Tutorial_EGHS:GPIO_Protection_Circuits GPIO protection circuits]: different approaches to safely interfacing with RPi pins | ||
* [http://www.sparkfun.com/tutorials/65 SparkFun sensor interfacing]: general tutorial for logic level conversion | * [http://www.sparkfun.com/tutorials/65 SparkFun sensor interfacing]: general tutorial for logic level conversion | ||
* [http://www.raspberrypi.org/phpBB3//viewtopic.php?f=44&t=12498 Max current for GPIO pins] | |||
** [http://www.scribd.com/doc/101830961/GPIO-Pads-Control2 GPIO pads control]: documentation by SoC engineer Gert van Loo | |||
*** ''All the electronics of the pads are designed for 16mA.'' | |||
** [http://www.thebox.myzen.co.uk/Raspberry/Understanding_Outputs.html Understanding Output]: explains relationship between voltage, current and impedence | |||
*** ''A maximum of 16mA per pin with the total current from all pins not exceeding 51mA.'' | |||
=== Links === | === Links === | ||
