My sequencer is built exactly according to the clear plans from the GitHub release (https://github.com/holmesrichards/8StepSequencer). Only the ON/OFF switch with LED is added.
The labeling of the panel is not quite finished yet.
Together with the new Arduino code, all 11 modes to be set are operated properly.
I am happy about the sequencer like a child.
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nice work ! …
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Am I correct in that 3 goes out to ground here? I’m using the @analogoutput design.
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Conventionally the terminals on a pot are labeled in the other direction: Viewed from the front with the terminals down, terminal 1 is on the left, 3 is on the right. Following that convention, terminal 1 (the one you have labeled 3) goes to ground. 2 goes to the diode and 3 (the one you have labeled 1) goes to resistor, switch, and LED.
Which I have just noticed is opposite what is shown in my schematic, so I’ll correct that now.
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Oh and double oh. lol
I wonder if my safety valve VCA is backwards too now.
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also in the Wiki page 
direct link for pot :
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Are these resistors here specifically for LED protection?
No, they’re to limit current in the event the output jack tip gets shorted to ground.
In the original LMNC design there was a resistor on the anode side of each LED to define the LED current. In my version since only one LED is on at a time, I changed it from 8 resistors connected at the anodes to a single resistor between all the cathodes and ground.
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Ahhhh, so that is what R14 is for then, correct?
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Yes! 
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Huzzah! I’m in the processes of learning!
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Am I right in assuming the sequencer outputs CV between 0V - 5V at each channel? I was trying to check this earlier with my oscope, but it’s been a little wonky lately.
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Yes. Or it does if that’s what the Arduino has on its 5V pin. If you have a 5V regulator connected to the VIN pin (as shown in LMNC’s diagram) it’ll put out less than that.
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@analogoutput: Your remark regarding current limiting resistors for the event the output jack tip gets shorted to ground is very useful information!
Is it always recommended to include a current limiting resistor before an output jack?
And is it necessary to include the resistor before a diode, or could the resistor also be placed after a diode, or even without a diode?
Thanks in advance for your information.
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Recommended, yes.
Necessary ? it all depends if the output of the circuit driving the output jack is protected agains shorts or not.
In theory the TL07x family can withstand a short to ground for ever (according to the datasheet), but you almost always see current limiting resistors even there.
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Here the output connects to an Arduino pin. My understanding (I could be wrong) is that these are NOT protected against high current, so a current limiting resistor is very much advised.
The diode comes from @lookmumnocomputer’s design and presumably is to protect the Arduino against a large positive voltage (e.g. if someone inadvertently plugged the output into a +10V CV source). So why isn’t there protection against a large negative voltage? Good question. But the Arduino itself has protection diodes on the pins, so this is just added insurance.
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Hey I’m trying to get a better idea of how the sequencer works. I ran a simulation for a single step and noticed that the current going to the CV output (node 2) is crazy low (about 51uA). Is this normal? I keep finding info on what CV voltages to expect, but nothing on the current needed for it to actually be useable as a control source.
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Current doesn’t really matter. Control voltages aren’t meant to power anything, they’re reference voltages.
And I don’t know what you plan on plugging your sequencer outputs into, but you have a 5M load resistor there. Module input impedances are usually more like 100k. You’ll see a higher current if you lower that. But again, you don’t need current, only voltage.
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It depends on what you connect it to.
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That’s interesting, I didn’t realize it was just a reference voltage.
I put the 5M resistor there thinking that it would represent an output jack with nothing plugged into it. I guess that wasn’t the right way to look at it.
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