0 - 10V input on PIC 16F876

[slayerizer]

thank you actually it seems quite obvious, why didn't I think of it, but thanks...
but what if I want to use the 0 - 10 volts as an output...
it only sends out 0 - 5 volts...
is there some kind of transistor that when the base opens in the range of 0 - 5V, the transistor slowly opens, and sends out (from collector to emitter) a range of 0 - 10Volts... or is there another way??

[Acetronics2]

Hi,

a little search on this forum could have raised Our Friend Darrel had designed a more than fair tool for such voltage dividers calculations.

and overall some idiotproof items included ...
...

Alain

[Ioannis]

but what if I want to use the 0 - 10 volts as an output...
it only sends out 0 - 5 volts...
is there some kind of transistor that when the base opens in the range of 0 - 5V, the transistor slowly opens, and sends out (from collector to emitter) a range of 0 - 10Volts... or is there another way??

What do you mean? Take as an input 0-5 and output 0-10Volts?

Ioannis

[slayerizer]

the PIC only sends out 0-5 volts, but the PC needs to receive 0 - 10 volts... just like its sends 0 - 10 volts...
how can I send a signal of 0 - 10 Volts to the PC, when I use a PIC that only sends out 0-5 volts..

[skimask]

the PIC only sends out 0-5 volts, but the PC needs to receive 0 - 10 volts... just like its sends 0 - 10 volts...
how can I send a signal of 0 - 10 Volts to the PC, when I use a PIC that only sends out 0-5 volts..

So.......
Are you trying to make a digital output (0 or 5v) from the PIC into an analog (0-10v) output to the PC? Why would a PC need to receive 0-10v? (I smell an RS232 question coming up in the next reply)
For what reason? A PC doesn't usually have an A/D converter on it...at least not one that the average joe can use with any success...unless you've got a PCI/ISA D/A card of some sort.

[krohtech]

A lot of older theatrical dimming systems used 0-10V as a dimming reference. Is this what you want to do? You could use a DAC chip from MAXIM. How much current do you need to source?

[Ioannis]

the PIC only sends out 0-5 volts, but the PC needs to receive 0 - 10 volts... just like its sends 0 - 10 volts...
how can I send a signal of 0 - 10 Volts to the PC, when I use a PIC that only sends out 0-5 volts..

That is an easy thing to do with an op-amp and a gain of x2. Use on like LMC66x series that are rail to rail capable.

Now as skimask stated, why a PC would need 0-10Volts?

Ioannis

[slayerizer]

thanks you all, I'll manage it from here...
I was mistaken by saying I needed the 0 - 10 volts to send to pc, i am making an IO Board, that can be controlled by the PC, the analog output (0 - 10V) of the PIC will be used for controlling, what ever I want to make on that IO board...

Found info about a IO-Warrior24, that is quite similar to what I am making.

anyhow, I'll try the op-amp... that'll probably work