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Old 11th April 2011, 12:41 AM   #111
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strictly development-mode stuff, but a direction we're going in:

Click the image to open in full size.

yes, remote control of the remote control (lol?)

a web CGI interface that gives fairly detailed control (more than what is shown here) of the LCDuino system. I have 2 browser windows open to 2 webservers; each one has a serial connection to an LCDuino system. one webserver could support many of these; just use a separate FTDI serial cable and you'll get /dev/ttyUSB0, 1, 2, etc, in the /dev directory). then specify the right '/dev/' number when invoking the CGI.

you can click the up/down/left/right buttons to change volume (up/down are big volume jumps and left/right are smaller jumps). center button refreshes display (it does not auto-refresh; but could if you wanted it to).

the first software release will have this code in the trunk but not enabled by default. however its simple to enable at build-time (it will be documented how to do this).

I can already control my volume from somewhere else in the house, using wifi and a touch tablet or netbook. its fun!
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Old 4th May 2011, 02:35 PM   #112
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finally, the day has arrived. we are annoncing our LCDuino project:

The LCDuino-1 Display I/O Processor

source code link should be up shortly; the rest of the info on the design and construction is there, now.

while the PGA chip is not officially supported in v1.0, I will say that its what I personally and I always test against my own PGA board. same with the spdif switch; not officially part of the 1.0 product set but it does work and a supported version of the pga and spdif switch hardware will follow. remote network access will also continue to be developed in the 1.1 source tree.
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Old 6th May 2011, 06:09 AM   #113
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Looks great!
Any prices yet?
What would be included?

Thanks,

Alan
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Old 6th May 2011, 02:27 PM   #114
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amb's site is still being updated. maybe another few days until its all there (his web store will have the boards for the lcd module and relay attenuator and relay input/output selector. that's the first config that we will support for the v1.0 firmware.)

I use a PGA board that I adapted and that will also be supported if you are willing to build your own PGA board and an adapter port-expander. its not offered at amb's store yet as we will be starting on the pga part of the project shortly; but the controller DOES talk to the pga chip and I've been using mine for a few months now with good success.

the boards that are ready now (and will be in the online store) are: A10 backplane, A20 buffers, LCDuino1 controller, Delta1 relay attenuator, Delta2 i/o selector.
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Old 21st May 2011, 11:07 PM   #115
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source code is now up!

The LCDuino-1 Display I/O Processor

and follow link for 'download'.

boards are now officially available, as well.

enjoy
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Old 22nd May 2011, 01:52 AM   #116
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also, working on this setup for the next version of firmware:

Click the image to open in full size.

its an xbee radio link that will let you put the controller in one system and a back-end (with another lcduino controller) in another system.

could even be a battery powered remote with lcd, (motor)pot but using a radio link from the 'handheld' to the base station.

...coming in the v1.1 firmware (working on it now).
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Old 1st June 2011, 09:55 PM   #117
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this might be a nice cheap PSU for the ebay boards: search on fleabay for '17122B' (hp/att wall wart power supply).

its dual 10v ac (4wires). seems like a pure trafo with nothing 'in the way'.

the ebay PGA boards all expect dual ac in and this looks like a nice UL solution that costs very little and saves a lot of building time. cut the connector off and put some other 3 or 4 pin one on.

fwiw
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Old 2nd October 2011, 09:27 PM   #118
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update: I've gone 'hardcore' (lol) and had a proper metal chassis milled and shipped to me (front panel express).

Click the image to open in full size.

I'm pleased with the overall result and will be investigating doing a small production run of units something along this line.

here it is at burning-amp 2011 with the rest of its usual stack (behringer stuff for active crossover and EQ):

Click the image to open in full size.

its still using the ebay PGA board inside but I am going to be making my own board from my own layout.

the front panel buttons and rotaries were added just this week so its a very recent addition. the menu system is now accessible from the front panel and so if the handheld remote is not nearby (where DID I leave that thing, anyway?), its not a problem anymore
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Old 3rd October 2011, 04:51 AM   #119
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Looks tidier than the Behringer stuff - great job !
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Old 3rd October 2011, 04:55 AM   #120
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thanks. I was going to litter it with more buttons but my friends told me to cut them to a min. we compromised and so we have 'some' but not a litter-ful of buttons. the knobs were supposed to sink into the panel a bit more but we used what we had onhand (imports from a previous project). some people said it should have been all silver but I'm not sure, myself. are the black knobs 'too much' visually? suppose they were the same diameter but just half as long, sticking out?
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