Search:

Hi all

Been helped a lot here over the years so time to hopefully do a bit.

A Menu on one display and only one button to select.

I build Audio Tube Amps. The latest effort has over a grand...

I agree with the posts here regarding the noise introduced by digital volume/balance controls. Have used many but mainly the Dallas DS1809 stereo chip. No matter what you do with support circuitry...

Thjanks again.

All received and well understood. But the original question remains : "how do you physically display the current value of Vdd on an LCD?"

Thanks Joe.

Yes of course you are right. The rectified voltage will be 1.414 times the AC voltage. And it measures accordingly. That's why I have a voltage divider built in and probably a zener...

Hi Henrik.

Thanks for the info. I would rather use the internal vRef which as you say moves with Vdd. So if I can adjust Vdd and so vRef to exactly 5 volts (from a mains variable supply) as the...

Hi all. Newbie here so please be gentle. Using a 16F876 and 2.45a. Want to display Vdd on an up and running LCD. Can't figure it out. When displayed Vdd will then be adjusted to exactly 5 volts to be...