3228

16x64 dot matrix

 
Overview

For the mold taking software and mold setting, refer to the cover picture. STM32F103C8T6 drives 74HC595, using a 1.9mm 8X8 common anode dot matrix module. Q1 Q2 controls 16 rows of anodes, Q3~Q10 controls 64 columns of cathodes, Q11~Q16 I am afraid that the driving current of Q1 and Q2 is insufficient and they are connected together. In fact, they can be replaced by 16 triodes, but I am too lazy to replace them. The wiring is to use automatic routing. I have verified it and I have corrected the two mistakes. When welding, pay attention to the fact that there are basically no gaps in the module pins. If the soldering is weak, some positions will not light up. I often have no lights and then check the pins for repair welding. PB0 is connected to the 14th pin of Q2, PB1 is connected to the 11th pin of Q2, and PB10 is connected to the 12th pin of Q2.

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