Great video, Karen!
Keep up the good work
This comment was made on YouTube and I thought I'd answer it here so that people with more experienced than I can chime in as well.
I don't fully understand your circuit, but it sounds like you need a component that is latching. Once triggered, latching components stay "on" until a second action or signal turns them off.
It sounds like you want to be able to turn your circuit completely off, cutting off all power, but have something stay closed rather than default to open. Many components require power to stay closed/latched. But we may be able to come up with something that will work if I can get more details. Do you have a schematic, or diagram, or drawing of your circuit you could share? If not, can you tell us more specifically which components you're using or more details about what you're trying to achieve? I hope we can help!
Very well presented. I am looking forward to your drill down to specific chips.
Very nice introduction to integrated circuits.
A whole new world opens up once you begin to play with complex circuits, not to mention the difference between synchronous and nonsynchronous circuits.
Old EPROMs had a quartz window (so that they could be erased with UV light) and that gave a fascinating glimpse of the chip inside and the bond wires. The transistors that made up the memory were arranged in regimented rows and columns and the spacing is so small that you get interference effects when visible light is reflected off the surface. Here is white sunlight falling onto the two arrays of transistors on this particular chip (an ST 27128 part) and the lovely colours that result.
Excellent job consolidating a massive amount of information on such a broad topic. (Are all ICs are the same, right?) At first, I thought, "I'll just watch for a minute or two." Without realizing it, I watched the entire video.
I am looking forward to how you talk about some of the primitive logic chips, like gates and flops.
Oh, I also liked how you addressed Arduino and Pi boards being called "microcontrollers." I'm guilty of that myself (and people want to let me know it.)