what i have doneeeee oh god .. from my last post .. i tried to make a little adjustable voltage regulator with a lm317t with a 5k small pot, i adjust it to give me 3.5v and connected to my rfm bord ......
in 2 minutes the pot started to get hot melted ... and changed his value and the lm started to give 4.5v i had the voltmeter connected ... and disconnect all fast :)) fast and furious.
i think the pot was connected bad i used 2 pins instead of all 3 ... the middle one to the adj of lm317, the one from other 2 to the ground and one free ....
what can i measure to determine if the rfm is not fried ... how can i determine if they are not damaged ??
please someone can measure some values between pins ? and tell that to me ... i don't know really i'm afraid to connect the voltage regulator back to the bord
thenx for your help