Need assitance getting Vacuum Fluroescent Display work with Arduino via Serial.

i have old vfd unit has parallel , serial input, trying use serial input display text. have found simple "hello world" code similar vfd unit. unit has 3 inputs vcc,sin,gnd, have provided separate power vfd, while arduino connected pc, both vfd , arduino share gnd. default vfd unit goes "test mode" if power connected. sin active low input (sin = 0 => active), have connected arduino, have sin input in parallel pins haven't touched.

test mode image of vfd- http://www.imgrum.net/media/1406738845025909591_2306830046

example trying use-   http://www.planetarduino.org/?cat=673

datasheet of vfd- tinyurl.com/jlg5vte


thanks helping/reading


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*all want send text vfd unit via serial using arduino. in future plan use esp8266 wifi module display tweets on vfd screen.

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