IJAZ AHMED wrote:
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Bread boarded circuits have very high chances of loose connections.Your problem is intermittent. It may be a loose connection.


Ijaz has a very good point - I never use the push in soket type bread boards. All our prototype start out wired with insulated wire on a 0.1 x 0.1 inch perforated board with square copper pads to solder onto.

Steve