LD
New Member
Rockola 480
Posts: 13
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Post by LD on Jan 3, 2020 12:57:14 GMT
Crazy thought...
1) Has anyone tried to hook up an Echo Dot to the microphone input of the Rockolas?
2) Ideally, would have the Dot powered internally so would power when the box powers. Any ideas?
3) Possibility of Echo controlling Raspberry Pi or some sort of contact closure to make juke voice activated? ("Echo, play 127")
I know this is pretty crazy, but, why not?
Side note, I've looked in the repair manual but must have missed it... I have a cable harness on the lower left of the box by the opto board on the magazine. It's not connected to anything. Any idea what it's for? THinking I could pull power from that...
-A
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LD
New Member
Rockola 480
Posts: 13
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Post by LD on Jan 8, 2020 21:04:37 GMT
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LD
New Member
Rockola 480
Posts: 13
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Post by LD on Jan 17, 2020 16:14:09 GMT
I think I can use the below chip to mimic the control from a wall box.
Here's what I've found...
This is cheap and wifi enabled - will accept commands from Alexa and is programmable. Capable of making contact closures.
Page 17 of the 480 manual has the cable structure - a 9 pin "system" cable (with three connected) comes from the factory installed.
Looking at the schematic for the 1775, that cable has: pin 1 Common power pin 2 Common Logic pin 5 says Blue/White
The power is used to power the aux wallboxes (Models 506/507).
Current theory - don't reinvent the wheel. Do not install Kit #1775 (Wallbox Converter Assembly), step the power down to energize the above board, and use the same board to create contact closures that look like the signals sent by the 506/7 wallboxes. Alternately, can use spare 120VAC from existing wire that was supposed to power kit #1775.
More below...
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LD
New Member
Rockola 480
Posts: 13
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Post by LD on Jan 17, 2020 16:37:58 GMT
So the key would be getting the D1 board to talk to the juke as if it were a wallbox. There's probably a more elegant way to do it, but I'm not above writing the code for 180 different selections.
Check out the 507 mechanical wall box - it shows the waveform for the pulses for all 180. The 506 manual that does it all electronically does us a solid and counts for us.
It looks like a drop in voltage on the logic line indicates the beginning of a message (120 cps freq) - a first pulse train with variable length followed by a delay and then a second pulse train, both made up of square waves that return voltage to high.
The 507 has a 180 ms delay and the 506 has a 200 - so I'm guessing since both are compatible with the 480 it doesn't matter what delay I use.
Current thoughts:
1) Alexa can control chip through voice via third party app 2) chip can be programmed so GPO will form a sequence that mimics a wall box 3) aux power exists in the juke to power the chip
Issues:
1) based on 1775 schematic, do I need the extra hardware to change the control signal to the right format or is it just for lighting lights and run the hit counter? (lower half of drawing) 2) having trouble finding the exact voltage required to drive the pulse train (if it's high chip can't handle it)
3) I need to learn to program and Arduino
Still debating running the audio out of an echo dot through the system. Mic input isn't stereo which makes sense but makes it harder... still thinking.
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