Microcontroller configuration problem

Status
Not open for further replies.

yyyyaser

Newbie level 5
Joined
Oct 21, 2010
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,342
thanks in advance,

i need help for this circuit shown
- the wireless receiver only produces pulses (12v for on , -12v for off), so a regular relay cant be used because once the pulse is gone , it wont conduct , and i cant find an impulse relay.
- i want to use a microcontroller, but is there a micro that can take -12v as a logic zero and +12v as a logic one.
-if i cant get one of these, how can i configure the circuit to be used with a regular microcontroller.
-can i use a voltage regulator this way:i/p:12v , o/p:5v.
 

Attachments

  • untitled.jpg
    26.3 KB · Views: 52

you can use voltage shifter, like those Max232 for Serial to TTL
 

One resitor and a zener diode would be the simplest input signal converter, as shown here:
**broken link removed**
:wink:
 

Status
Not open for further replies.

Similar threads

Cookies are required to use this site. You must accept them to continue using the site. Learn more…