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Problem with GPIO Extension Board

Posted: Tue Jul 22, 2014 8:29 pm
by at2oo1
Hi Community,

i´ve got a model B Rev. 2 for a while now and had a lot of fun with it. Now i want to do a some breadboard experiments with the GPIOs of the RPi. I´ve bought a extension and a breadboard and wanted to create a simple circuit.

The problem is that the descriptions of the PINs on the GPIO extension board is different from the description on the RPi.
Some one got a a mapping table or how to map it by my selfe?

This is my extension board:

Image
Bought here

PINS Left:
CE1
CE0
SCLK
MSOP
MOSP
RXD
TXD
SCL
SDA

PINS Right:
P0
P1
P2
P3
P4
P5
P6
P7
GND

Re: Problem with GPIO Extension Board

Posted: Tue Jul 22, 2014 9:03 pm
by at2oo1
Finaly found it....

Image

PINS Left:
CE1 => GPIO8
CE0 => GPIO 7
SCLK => GPIO 11
MISO => GPIO 9
MOSI => GPIO 10
RXD => GPIO 15
TXD => GPIO 14
SCL => GPIO 3 (rev 2)
SDA => GPIO 2 (rev 2)

PINS Right:
P0 => GPIO 17
P1 => GPIO 18
P2 => GPIO 27 (rev 2)
P3 => GPIO 22
P4 => GPIO 23
P5 => GPIO 24
P6 => GPIO 25
P7 => GPIO 4
GND

Right?

Re: Problem with GPIO Extension Board

Posted: Tue Jul 22, 2014 9:06 pm
by MattHawkinsUK
The picture you linked to goes to some horrible site with popup adverts that redirect when you try closing them. Yuck!

Not sure what the P references are but the lefthand side can be matched to labels on my GPIO diagram :

http://www.raspberrypi-spy.co.uk/2012/0 ... -and-pins/

Re: Problem with GPIO Extension Board

Posted: Tue Aug 18, 2015 11:51 am
by ProfessorRED
I just tested all of these on my board and they worked thanks a lot and it is proven!

Re: Problem with GPIO Extension Board

Posted: Fri Feb 03, 2017 11:23 am
by ryanwhunt
I wanted to post this to help anyone who finds this page and they're using a Raspberry PI rev1 with these extension board. This is one of the first Raspberry Pis made available, and I had a few kicking around I finally got to use with these expansion boards.

Based upon http://raspi.tv/wp-content/uploads/2014 ... 24x703.png the rev 1 boards differ:

PINS Left:
CE1 => GPIO8
CE0 => GPIO 7
SCLK => GPIO 11
MISO => GPIO 9
MOSI => GPIO 10
RXD => GPIO 15
TXD => GPIO 14
SCL => GPIO 1 (rev 1)
SDA => GPIO 0 (rev 1)

PINS Right:
P0 => GPIO 17
P1 => GPIO 18
P2 => GPIO 21 (rev 1)
P3 => GPIO 22
P4 => GPIO 23
P5 => GPIO 24
P6 => GPIO 25
P7 => GPIO 4
GND

Hope this helps someone!