Hi there all,
i have built my self a PWM, i would like to know how i would be able to see the duty cycle and frequency,
how can i connect a uno to the circuit to show me the values.
">
Hi.
You could connect an anlog input to R15/IC1.7, to read the set value of your PWM controller.
That doesn't tell you what's actually being sent out by your controller.
But i think it would be the easiest way to connect and to create a readout in software.
Still keep in mind that R15 is connected to 12 volts (in relation to GND), so create a voltage divider.
And make that one high Ohms so that its influence on your control of the PWM is minimised.
It is a bit odd to create hardware to do PWM, and then use an Arduino to read back it's value.
But i do understand things here in Arduino world don't always need to make a lot of sense, sometimes we're doing things just to learn from it, or to play (which might be the same thing).
thanks for the feed back,
yep it one of those old school things i built a long time ago, would just like to see if it is possible to tie in with arduino to see the out put.