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Raspberry Pi Forum RPi rev 2.0 explained
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  • Replies 55 replies
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RPi rev 2.0 explained

Former Member
Former Member over 13 years ago

Eben has a front-page story up explaining rev 2.0.

It does fix the 1.8V problem, although no credit where

credit is due to Jamodio or any of the others here for

finding, characterizing, and reporting the problem.

 

No mention that I can see of FCC/CE residential

certification.  I assume the needed minor pcb changes

were made, but perhaps certification has not been

done yet.

 

http://www.raspberrypi.org/archives/1929

 

p.s.

   hopefully element14 will explain to their customers

how to be sure to get rev 2.0 when ordering.

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  • wallarug
    wallarug over 13 years ago

    I think a great use for the P5 header is a 16x2 display.  The display only needs 4 lines, 5v, 3v3 and a GND - Perfect!

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  • wallarug
    wallarug over 13 years ago

    I think a great use for the P5 header is a 16x2 display.  The display only needs 4 lines, 5v, 3v3 and a GND - Perfect!

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  • jamodio
    jamodio over 13 years ago in reply to wallarug

    For a typical parallel interface with a HD44780 or equivalent controller you need more than four, besides d0-d3 you also need two control signals

    for enable and register/data selection.

     

    -J

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  • wallarug
    wallarug over 13 years ago in reply to jamodio

    jamodio wrote:

     

    For a typical parallel interface with a HD44780 or equivalent controller you need more than four, besides d0-d3 you also need two control signals

    for enable and register/data selection.

     

    -J

    You are right. image It is 6 GPIO lanes, 5v and GND.  Should have checked my facts. http://learn.adafruit.com/drive-a-16x2-lcd-directly-with-a-raspberry-pi

     

    srry.

     

    Still an extra 4 GPIOs and a 5v will help the cause. image

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