Noritake Itron Dot Matrix Graphics VFD Screen Gu140x32f-7703a Gu128x32f VFD Screen Module

Noritake Itron Dot Matrix Graphics VFD Screen Gu140x32f-7703a Gu128x32f VFD Screen Module

Simple test method:
The J2 jumper of the module is short-circuited by default, which can be cut off to make J2 suspended in the air. The 2,3 legs of the short-circuited CN3 can enter the test mode. When the module is connected to the 5V power supply, the test graphics and characters can be displayed.

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All jumper wires are suspended, use a CH340,CP2102 and other USB to TTL small board, and then use the serial assistant to directly send ASii characters can be displayed on the screen.

1, serial serial mode of operation: 38400 Start (1bit)+ Data (8bit)+ Stop (1bit)\\
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