Indispensible BrAEdboard project The comparator. May 22, 2022 10:23:16 GMT pol and keurslagerkurt like this
Post by pt3r on May 22, 2022 10:23:16 GMT
For all my fellow synthesists who got the brAEdboard module or who have a breadboard they can connect to their AE modular (hint, there are GND and +5V connections available on the MASTER I/O module) here is an article on opamps you must try out, you can look up more information on pin layout of the opamp in the buffered multiple DIY project of NightMachines .
Why don't I post a picture of my brAEboard schematic (yet)? because I would like you to try to figure out how to translate the information in the article into a breadboard setup. The satisfaction of figuring it out for yourself is quite nice and it is really not hard, and most of all you will learn a thing or two on the way.
If you don't have a brAEdboard module make sure to put a 1K resistor on every output of your circuit, just in case you accidentally were to connect it straight to ground.
The eagle-eyed will notice that an MCP602 (the opamp chip that is shipped with eh brAEdboard) contains 2 opamps, so you can build 2 comparators out of one chip.
I like to build one comparator and one inverted comparator, again all this information is provided in the article, linked together using one chip so I have one output providing me with a gate signal when signal A is higher than signal B and the other inverted comparator will give me a gate signal when signal A is lower than signal B.
Why would I like to build a comparator?
Here's one reason; If you ever want to be able to patch a MATHS clone on your AE modular then you will need to build/use comparators both normal and inverted.
Add a bunch of potmeter attenuators on the inputs and outputs (or patch in a couple of 2 ATT/CV modules) and you can patch your own 2 step (now you see where keurslagerkurt 's 5 step module comes from) sequencer setup.
If you want to give this a try and you run into questions then of course you will be helped out here.
If you don't care then that's fine as well, as said before I'm not your dad.