Its here because I cant be bothered with my own install

Archive for April, 2011

Display mockups

I found some nicer looking deep photoframes at the warehouse a couple of weeks back, and my large piece of protoboard finally arrived this week so I was able to start with the mockups. These are made of a plastic profile which has been assembled around the glass and front matt, as it is already black I dont have to paint it like I would with that horrid wooden frame, and its got loads of room inside it so that the other stuff can be out of sight around the edges.

Here are some photos.

The board is not quite large enough to fill the frame area of the frames and do 2 of them which is what I had hoped, but if you look at the later on ones, if the board was right at the back directly on the MDF/whatever board backing, it would have the digits a long way back from the glass.

If I cut it into 2, I can then trim it down and mount it ontop of some standoffs etc to get the displays closer to the front. That will reduce the spare space around it for the arduino chip, shift registers etc, but I am sure I can make it fit and get 2 of them out of it. Plus if its on standoffs there is the rear of the board to stick stuff as well which wouldnt be available if it was fully at the back of the photo frame.

They had larger frames, I am tempted to go get the 5×7 or the next one up and order another protoboard and make a really big one once these are done. Then I could use 2″ displays or something in it.

The displays arrived

Probably came last week or 2, but I only got up to the mailbox on saturday.

Anyway, I cocked up. I had planned on getting the one I showed before, and also a 3 digit version. I clicked thru and found a seller with the 4 and the 3 digit ones. And then proceeded to buy the wrong size of the 3 digit one.

Crap

Ah well, I can always work with that, I was hoping to make 2 rows of 10 digits – by my calculation 12 digits would not fit lengthwise in the case, but as luck would have it too, my calculations were wrong and I can fit 3 of the 4 digit ones end to end. So that leaves what to do with the smaller 3 digit ones. Not going to start another project till this one is complete, I have far too many half finished things already.

Here they are as packed and showing them lit up with a CR2032 on the terminals. Chip is an arduino AVR to show scale of them a bit better. I didnt have a ruler on hand when taking them.

edit: just realized that I never finished this post or uploaded the photos when I came to do the next post, which I will post shortly

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