Trouble firing a relay from a PIC, missing something

[analog1]

I agree you do need a snubber diode across the relay. But why 100 ohms in series limit the current to les the 50 ma what for? If current limiting is desired a better way is to a provide a current source of specific value and I would use a +5v pullup to the base of the 2n222 is inserance of off.
a 2N222 is fine but to switch it on to saturation you need a beta of force beta of 10 so 5v/max relay current wil do.
I really don't see the need for the 100 ohms

 

[be80be]

The whole problem here is the 100 ohm resistor that only lets the relay get 50 mA if the coil is less then 100 ohm it would not pull in.