It shows the following error: Using Port : /dev/ttyUSB0 Using Programmer : arduino Overriding Baud Rate : 115200 avrdude: stk500getsync() attempt 1 of 10: not in sync: resp0x00 avrdude: stk500getsync() attempt 2 of 10: not in sync: resp0x00 avrdude: stk500getsync() attempt 3 of 10: not in. Shift register is connected to Arduino as usual by data, latch and clock pins. I am trying to upload sketch to a ATmega328P on a breadboard using a PL2303 USB to TTL converter. The characters are displayed using the multiplexing techniques. All the row pins are connected to one of the output pin of the shift register. Circuit DiagramĪs you can see in the diagram every column pin is connected to Arduino pin through a 220Ω resistor. This is why Arduino is interfaced with the 8×8 matrix. However we have 64 supply combinations, and doing it manually is practically impossible. Like this we can turn each pixel by hanging the supply pins. If we apply negative to C2 then the second pixel turns on. If a positive voltage is applied to R1 pin and negative to C1, we can see that the first pixel turns on. As you can see all anodes of same row is connected to one pin and all cathodes of same column are connected to another pin.We have 8 row pins and 8 column pins.
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