Quoteand added the bypass to the tlc5940The processor also needs them.
and added the bypass to the tlc5940
Decoupling on all VCC/GND pairs
?? not on here?http://arduino.cc/en/Main/Standalone
?? not on here?
The bypass caps are there (2 x 10uF caps): one is in the output of the 7805 voltage regulator.
Stupid additional question but I plan on running this of a 3.6v PSP battery (always have 2 spare in camera bag + 1 in each of my psp1001 consoles)
Quote from: AlxDroidDev on Apr 01, 2013, 08:14 pmThe bypass caps are there (2 x 10uF caps): one is in the output of the 7805 voltage regulator.Those capacitors serve a different purpose than the VCC/GND capacitors. Both are important. The 0.1uF capacitors across VCC/GND are not present in that circuit but should be.
In one diagram I see them placed between the + supply and the VCC pins
and another diagram put across the + & - supply lines.
Quote from: AJB2K3 on Apr 03, 2013, 07:21 amIn one diagram I see them placed between the + supply and the VCC pinsWrong.Quoteand another diagram put across the + & - supply lines.Correct.The capacitor is connected from (A)VCC to GND as close as possible to the chip.