output pin produce not enough voltage

[ikram1991]

I'm use pic16F877A...my output pin connnect to relay circuit. When pic get the input relay still not operate..I check with multimeter on output pin it just produce 1 to 2 volt..please help me..

 

[Harald Kapp]

Your relay draws too much current. Insert a simple relay driver between relay and pic. Google relay driver to find tons of simple circuits. You don't need an IC, a transistor is enough.
Don't forget the freewheeling diode across the relay coil.

 

[ikram1991]

Actually I'm use a simple relay circuit consist diode,resistor and NPN transistor. When I not connect the relay circuit with PIC output pin and check the voltage still same.

 

[p.erasmus]

which pin are you using did you configure the pin as an ouput ?

 

[Harald Kapp]

Show us the circuit diagram, then we can discuss it.