Add two rows of the holes for the pins. So it can be connected with normal Dubond line.
Add 3 rows of the holes for wiring.
Change the in-line package of ATMEGA328P to flat package.
CH340G Replace ATmega16U2
2 x ATmega328P CH340G Board
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.
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