A few hours later… I still have to solder in 2 transistors and 2 resistors, which are still in the package at my sister’s home. So I can’t do that until tomorrow. The next step is to see how long the cables from the potentiometers to the panel have to be.
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Hey, you makin sure that the ground buss etc is broken before it gets to the chip?
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THX, of course it is ! 
By the way, that’s Sam’s layout, just with the Eurorack Power Bus thing. On the webpage the resolution is not that good and you cannot zoom, here you can
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I started a new project, and I’m not saying what it is yet. The prototype is working, so much I will say. But I thought I’d add a teaser just for fun:
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Hardware’s together, but I don’t intend to deal with software at this point in the evening.
Edit: Yikes, the OLED connections are wrong. Gonna have to kludge something.
Hm. Here’s the original designer’s OLED:
and here’s mine:
I detect a subtle difference.
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That’s mean ! You can’t even tell what’s on the IC.
Unlucky… I have seen differences between different STYLES of display, but makig the same style with different pin layouts is unusual… is the driver the same?
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wow that would drive me bonkers…
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Appears to be entirely compatible aside from the pin order.
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Wonderful!!
I got some that were SPI / I2c , but you had to change SMD’s to get I2C to work ( I could not ) the seller could not advise any better and just refunded. And I got some I2C only ones like one set of your 
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I managed to only get 2 addresses. 0x3C and 0x3D
It would be nicer if the ones i got just had solder jumpers, but i just needed 2 addresses so it was fine for me.
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(with some M-F jumpers to get the pin order right)
Apparently I bought a half dozen 4051s back about seven years ago and then never used any of them, until now.
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I have to use the i2C MUX for the Sequencer as the displays are fixed address and there is 4 ( or even 5 if the design changes slightly.)
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No Need to Swear! 
That looks ace, nice use of the yellow topped screen. 
Rob
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It is! (Not my design so I can say that.)
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If you look on the back, mine had a SMD resistor that i took off to get a different address. I messed 2 of mine up doing this so only attempt if you dont suck or if applicable.
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ARM Cortex-M7 MCU, High fidelity AKM stereo audio codec with up to 24-bit 192kHz, 64MB of SDRAM, and 8MB of flash memory, furthermore a TL074 used for buffering.
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I can get t-shirts for
“I killed my I2C display trying to re-address them”
may seem a little “Out there” for the general populous, but could be a big hit with us Display Newbs…
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