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centrex
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Posted: 16 September 2017 at 9:16am | IP Logged Quote centrex

Mine also.
Question what are the pins marked dog intended for.

It will be good to get it going.

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cdeagle
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Posted: 16 September 2017 at 10:59am | IP Logged Quote cdeagle

Received my board yesterday. Delayed a few days by hurricane Irma.

Thanks
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bigmik
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Posted: 17 September 2017 at 12:52am | IP Logged Quote bigmik

Hi Cliff, All,

centrex wrote:

Question what are the pins marked dog intended for.


OK, You have got me... Where are the pins labelled DOG?

If you mean GDV (*and a spell checker bit you) then the description is in a box about 1" below them.

Kind Regards,

Mick

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centrex
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Posted: 17 September 2017 at 9:59am | IP Logged Quote centrex

Thanks Mick spell checkers are wonderful things!


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Grogster
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Posted: 17 September 2017 at 11:56pm | IP Logged Quote Grogster

centrex wrote:
Mine also.
Question what are the pins marked dog intended for.

It will be good to get it going.


It is where you connect the optional watchdog timer.

Just kidding.....

As BigMik says, it is a header for Pin33 mainly, along with 3v3 and Ground.
I think this is where matherp was going to have 18B20 sensors or something.

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lew247
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Posted: 12 May 2018 at 7:01am | IP Logged Quote lew247

Grogster wrote:




I've been studying this as I've just discovered the Pi port for the MM
If you don't mind me asking. is the 40 pin vertical connector on the left for connecting to the Pi and the horizontal 40 pin connector to plug into an SDD1963?

If I'm right what are connections DB7 - DBF for?

The reason I'm asking is it looks like the horizontal connector is connected to COM 1?
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palcal
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Posted: 12 May 2018 at 8:40am | IP Logged Quote palcal

@ Grogster
Do you still have boards for the Pi backpack.
I have nothing to play with at the moment so I bought a Pi.

@ Lew
Have a look at page 3 of this post Peter has a picture of the Pi mounted on the PCB.

Paul.

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Grogster
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Posted: 12 May 2018 at 10:30am | IP Logged Quote Grogster

@ lew247 - Other way around. Horizontal one with the box drawn around it on the silkscreen is the Pi-Zero module footprint - you plug the Pi in there, and anchor it with the four bolts in the corners. The vertical 40-way on the RIGHT of the image above, is for the SSD1963 LCD. The board is designed to piggy-back onto an SPI LCD or to connect to an external SSD1963 parallel LCD via the header, or a short IDE hard-drive cable. DB8-DBF are the connections on the SSD1963 LCD for data-bus bits 9-16, which are not used, as the LCD runs in 8-bit mode, so only uses DB0-DB7 pins.

@ Paul - I think so, I will have a look. I never got around to playing with this board myself, as at the time, I did not have a PI-zero.

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burntyards
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Posted: 13 June 2018 at 7:57pm | IP Logged Quote burntyards

@Grogster

The trouble with these projects is they never end !

I would like to buy two of these boards if you still have any. I have two 2.8 screens on two MM Backpacks which I could swap out as I now need "MM + Internet".

I am nervous about ordering 10 from China with the manufacturing data as I have no experience of this. If they ask any questions, I'm stuffed.
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Grogster
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Posted: 14 June 2018 at 8:12am | IP Logged Quote Grogster

Hello. Welcome to the forums.

I will have a look in my PCB's. Can't remember if I have any of those left or not, but if not, I can get some more in my next PCB order which I am preparing this week anyway. I will post back here with the results of my search.

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