Hi everyone,
started my first Arduino/electronics project. I have a very basic understanding of electronics (But am a strong programmer, looking to improve the hardware side of things
).
I currently have a LOL Shield that shows a graph of CPU usage but was looking to expand this out to other stats, such as memory usage or w/e. I was looking at using an ammeter to show the percentage of processor usage but have no idea where I'd even start looking for such a thing or even which ones would be suitable for use with an Arduino (Uno).
Any advice that people can give would be excellent. ( UK stores are preferable )
Dead simple - a PWM pin, a load resistor, and a 1mA or less FSD meter.
However, CPU usage is 100%, 100% of the time, unless sleeping.
Thanks for the speedy reply.
I guess I did not make myself clear. The display is showing my computer's CPU usage. I already have a working version.
I intended to ask about/for recommended ammeters that I can use with my arduino and the best way to go about setting it up. (as I have little-to-no electronics experience)
Maplin do some small signal strength panel meters, otherwise have a look on ebay or Amazon for analogue panel meters.
A 1mA or lower FSD is ideal.
Thanks for the advice. Just to double check, (sorry for being a pain) this would be suitable? http://www.maplin.co.uk/signal-strength-meter-5635
That's the one.
I can't remember the spec, and can't see the Maplin site too well on my phone - what is the spec?
100 or 250 uA?
20kohm load if it is 250uA, 50k if it is 100uA
Awesome! Thanks.
It's listed as "Sensitivity: 250ยตA FSD ยฑ10%"
Ok, simple. Resistor (20k) to PWM pin, other end of resistor to meter's + terminal, other meter terminal to ground.
Thank you so much for the pointers, it sounds so easy now!