Another usb-to-whatever converter is the FX2 chip from Cypress. I've used the FTDI and FX2. The software guys like the FTDI better, but the FX2 has way more IO capability and better documentation (plus an internal 8051 you can program to do custom protocols)...
You need to define what you want to visualize. Do you want the spectrum, or the time domain? Or, something else (like patterns based on frequency content)
If you want the spectrum you need to digitize and run the FFT. If you want time domain, you need to digitize and decide how to trigger...
First go to wikipedia or some other site and read about charging and characteristics for the battery technology (like lead-acid, lithiun-ion, NiMH, NiCad, etc) you are intertested in. Then, proceed to ask questions about the things you don't understand.
In order to do a state oriented system the states and transitions must be exactly defined.
For example, if you press M to shut the system off (while ABC==true), does pressing it again cause it to restart? (in other words, does M always toggle the system?).
Or, do you have to go through ABC==...
Hold down ABC and power is applied. Hold down ABC and M and no power
Don't hold down ABC and hold down M and power is applied.
What ever ABC does, pressing M reverses it. IF ABC has it on, pressing M turns it off. If ABC has it off, Pressing M turns it on.
Standard notation for...
I am designing it as a memoryless system.
A simple boolean experssion is power = (ABC) ^ M.
Breaking it down:
IF A & B & C & ~M then power.
IF (~A | ~B | ~C ) & M, then power.
4 SPDT switches in series
A,B,C in series through NO with M NC. So when ABC pressed, load gets power but pressing...
OK --- I stand corrected. learn something every day! It's leakage current changes with light like any diode.
The photo current is very small in an LED because the geometry of the junction is not designed to maximize it like it is in a photo diode. But it does exist.
What are you wanting...
An LED cannot be a photodiode. It doesn't have a "photodiode-like" mode of operation. (If that is what you were asking)
BTW, In the tvilight they show a sensor unit on the pole controlling the bulb.
You need to bullet list the features that you want to support. (make it up) This is a very...
I assume you mean average value of volts.
I don't see what you are talking about in the "first osc part". I just see 1 cycle of a sine wave. The average voltage of a sine wave over 1 cycle is zero. So just average everything as if the sine wave is not there.
NasOxy is correct.
I think you need to back off to a simpler example and fully understand it first. Then the problem will make sense.
There is a wikipedia page for "voltage divider" you should read and understand. For the simple voltage divider (R1 in series with R2) you calculate the total...
@ berkeman: I'm curious why you think this is spammy software? Looked ok to me, but I didn't install it.
Designing logic with schematics is so old-school. Is it an old school? An old teacher?
Aside from that, would you know how to design a cpu from scratch using Xilinx ISE? The process isn't...