Aug 27, 2012 #1 K kamranraj Newbie level 1 Joined Mar 3, 2009 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,286 hi salam to all i make this circuit,attach "nokia c200" is working normally. then i attach sim300cz this circuit not working. sim300cz also working gavin DTMF output.
hi salam to all i make this circuit,attach "nokia c200" is working normally. then i attach sim300cz this circuit not working. sim300cz also working gavin DTMF output.
Sep 2, 2012 #2 Y yogece Member level 3 Joined May 25, 2010 Messages 65 Helped 6 Reputation 12 Reaction score 6 Trophy points 1,288 Location Coimbatore, Tamil Nadu, India Activity points 1,736 reduce the R1&R2 values in the schematic and then try it - - - Updated - - - reduce the R1&R2 values in the schematic and then try it
reduce the R1&R2 values in the schematic and then try it - - - Updated - - - reduce the R1&R2 values in the schematic and then try it