hi
ive been using my breadboard for a long time now but in the last two days i couldnt get any learning done because of a strange problem in the power or the breadboard i dont know how to tell you all this, the circuit is simple just a microprocessor 16f628a set to blink all leds on portb and thats it ive done this before on that same breadboard and it works good but this time it dosent the problem is that the circuit dosent run unless you touch any of the positive potential lines !
ive also done the circuit on an old breadboard ive had, i even fabricated the power supply circuit(7805 +3 cap) in a stripboard with no luck just getting an led that turns on and off very fast i dont think you can notice that on the clip
to understand better take a look at the video ive shot to see for yourself and try to explain or suggest a soultion
here is the link for a photo of the breadboard
and here is the video
ive been using my breadboard for a long time now but in the last two days i couldnt get any learning done because of a strange problem in the power or the breadboard i dont know how to tell you all this, the circuit is simple just a microprocessor 16f628a set to blink all leds on portb and thats it ive done this before on that same breadboard and it works good but this time it dosent the problem is that the circuit dosent run unless you touch any of the positive potential lines !
ive also done the circuit on an old breadboard ive had, i even fabricated the power supply circuit(7805 +3 cap) in a stripboard with no luck just getting an led that turns on and off very fast i dont think you can notice that on the clip
to understand better take a look at the video ive shot to see for yourself and try to explain or suggest a soultion
here is the link for a photo of the breadboard
and here is the video