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Appreciate the suggestions, but this too in-depth for my limited knowledge and comprehension.
Brian, I think I’ll return to the previous circuit of 48 4511s and individual LEDs in 12 groups of 4 digits. Albeit time consuming to wire, the circuitry is very simple for me to follow.
You might...
Hey Brian, been a long time!
“If the display is multiplexed, meaning the segments of all the digits are wired in parallel, you have to send the segment information for each digit in a sequence, only allowing current to flow through the common pin of the digit at the same time as that digit's...
Holy Christ.
I started the aforementioned one, which was to be 48 individual 7 segments in 12 groups of 4.
So yeah, it would’ve been hundreds of components. It worked wonderfully, but I gave up after the second set of digits, because of how time consuming it was.
Where is BeTwixt when you...
I think we’re getting into the weeds here. I just want to know if there is a chip or series of chips that will decode the 4 digit thumb wheel specifically for a 4 digit display. Can it be done, or does it also require something like an Arduino?
I can look into part numbers and data sheets when...
Referring to post 4, how would I decode into. 4-digit display? Those appear to have less pins than a single digit display.
In the past I used a 4511 per digit. Is there a chip that would be better?
Hi Klaus,
I want to be able to spin any digit on a 4-digit thumb wheel, and have that number display on any of the corresponding 4 digits of a 4-digit 7 segment display.
A few years ago, and with BeTwixt’s help, I achieved something similar with analog components and 4 single 7 segment...
I have limited knowledge. Does multiplexing require an Arduino or something similar, or can it be achieved with analog components too?
I want to use 1 4 digit thumb wheel to set the 4 digits on the 4 digit display.
That’s what I was hoping to hear!
In the past, I’ve driven 4 single 7 segment LEDs with a 4 digit thumb wheel going into 4 4511 decoders (one per digit).
How would I do this with the same thumb wheel, but into 1 4-digit display??
Oh, I've committed to it. The rest of my guitar rig, including amp channels and rack in the FX loop is controlled by midi. The last piece to add is my overdrive pedal which is out in front of the amp with the noise gate.
The more I think about it, I wouldn't know how to add features such as silent switching, true bypass or even low-noise circuitry. I'm probably better off buying the ML5 as I can see this project escalating quickly.
Thanks FvM. Similar to a Loop Switcher? There's a midi controlled switcher on the market called the Morningstar ML5, but it's $200. Was hoping to avoid that heavy cost.
Barry, what I meant was I only want to send program changes to turn the pedal on and off, not send data packets to midi...
Is it possible? I'd like to pull the midi ports and capability from an unused effects unit and add it to another not originally designed for it. I don't need to send data packets, just use the midi switching ability to engage and disengage it from my effects loop.
I have the service manual for...
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