Finding a use for an Acorn Electron

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iainjh

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AmiBayer
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Ok, tongue in cheek comment there, as Acorn Electrons, like BBC's, are simply wonderful computers, full of character. However mine was just a case and keyboard, sunburnt yellow, dirty stickers and ink all over, no motherboard or PSU.

Oh, what to do ?

1. Add a USB keyboard encoder from the brilliant Tynemouth software http://www.tynemouthsoftware.co.uk/Shop

2. Clean it, Retrobrite it in the UK sun for a week

3. Cut holes

4. Fit a raspberry pi 3 to it and emulate!

5. Make it behave like an Electron again via advmame/retropie (plus Amiga via Amiberry, ST via Rastari). One great thing about the Electron; it has plenty of high quality keys. Dave @Tynemouth configured the encoder to enable the F keys using 'Function' as a modifier. The encoder even has a buzzer for that cute Electron startup beep!

I fussed over a few weeks to get the cables and placement right, and amazingly found the Acorn Electron HAS MOUNTING HOLES THAT EXACTLY LINE UP WITH THE HOLES IN A RASPBERRY PI. EXPLAIN THAT CONSPIRACY / TIME TRAVEL FANS. HOW DID ACORN KNOW?? WHEN THEY DESIGNED THE ARM, DID THEY JUMP FORWARD IN TIME TO SEE THIS MOMENT? THE TRUTH IS OUT THERE :)

I used a drill for pilot holes, then a craft knife and small file to square. I haven't quite finished some of the holes as want to finish and make them exactly straight once I have had it working as a Beta. I didn't want lots of holes for multiple USB sockets, so only cut one, using wireless dongles for the mouse and Xbox One controller, and choosing short extender cables. This way, the case can remain reasonably agnostic to the SBC inside and avoid some 'technical debt'; hopefully avoiding ruining it for the future.

I may cut a hole for an ethernet extender cable, as saves mucking around with wifi for every micro sd card build. I've ordered a micro usb cable with inline power switch, and still need to add a momentary switch to drive a shutdown script/ GPIO function.

The micro sd card is a bit fiddly to get out but I just had to use those mount points!

Next up:
-Find hard drive images for ST and Falcon.
-Spend less time fighting amiberry or amibian, get the damn things to boot direct to amiga workbench.
-get them to recognise the xbox one controller
-fit the shutdown button under the rear ledge
-play with it!


Pics:

Scrubbed, IPA'ed to get the ink off. Keyboard out and cleansed with floor wipes and brush. Covered up the sticker to avoid warping in the sun:
IMG_5473.jpg


So much better! Took about a week to Retrobrite, on and off. No hair gels, just pure sun:
IMG_5469.jpg


Patched the side ports, both sides:
IMG_5470.jpg

IMG_5471.jpg


Under the knife. Soft plastics, mark and cut slowly. Removing a few small uprights for the micro sd. I cut them back a bit further as was neater:
IMG_5428.jpg


OK this bit required the drill and pliers. As the Pi was now sideways, needed a gap for the HMDI cable and then cut in access to power:
IMG_5430.jpg

Lining up. Now using washers and I will square up the holes better now I've used it for a few weeks. I'll turn the USB 180degrees as it annoys me - the USB key is upside down:
IMG_5431.jpg


Lining up. Will further tidy the cables and use ties once it's bedded in. I've since added the Xbox One and mouse senders to two of the internal USB ports, added fixings for the encoder and a small fan:
IMG_5433.jpg

Rear panel; access to micro SD, power, USB and HDMI
IMG_5434.jpg

In use:

IMG_5435.jpg

:)
 
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thats cool

im hoping to get an A600 case & keyboard and shoehorn in my MistFPGA :)

i was looking for anything large enough ( even an old fat PC keyboard with space ) with function keys pref 12 but 10 would do so I could tun the minimig fpga

cool project bud very nice.

now give ( i mean sell ) me an A600 case & keyboard so i can try something similar myself :)
 
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Well, what can I say other than..... Murderer!!! :lol:

Nice job. Wish I could get my mods that clean looking :thumbsup:
 
thanks chaps. I did have hopes to do the same to an A600 but ran out of space and...never actually got the case! I read the repro A500 and A1200 cases have pi mounts (Acorn won on that front)

A mist has so many ports! wow. would it fit a larger case like an A1200?
 
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