Noritake VFD with BPI216 Interface

[prashanthreddyg]

Hi,
I'm using Noritake CU16025ECPB-W6J (removed from old equipment), which is connected with BPI-216, I would like to get some help in displaying content from Uno board.
I'm completely new to this program.
Any help in this regard will be highly appreciated

I was able to display content on 16x2 LCD display with parallel wires, However when I switch on on my 28v DC load (300ma) with relay, display shows garbage values, so thought of using this BPI model which got I2C and protection.

[prashanthreddyg]

/ I'm using this code, but display doesn't show anything
/*This program uses the updated SoftwareSerial distributed in v1.0 of
the Arduino software. Users of earlier versions must download
NewSoftSerial. */

#include <SoftwareSerial.h>

#define rxPin 255 // Not used, so set to invalid pin #
#define txPin 3 // Connect BPI/BPK's SER input to this pin.
#define inverted 1 // In setup, 1=inverted, 0=noninverted

const char clearScreen[ ] = {
254,1,254,128,0};
const char message[ ] = "Hello World!" ;

/*
Set up a new serial output using the pin definitions above. Note the
argument "inverted," which instructs SoftwareSerial to output BPI/BPK-
compatible inverted-TTL serial (like RS-232, but without the +/-
voltage swing).*/

SoftwareSerial mySerial = SoftwareSerial(rxPin, txPin, inverted);

void setup() {
// define pin mode for tx:
digitalWrite(txPin, LOW); // Stop bit state for inverted serial
pinMode(txPin, OUTPUT);
mySerial.begin(9600); // Set the data rate
delay(10); // wait (may not be needed w/ Arduino v1.0)
mySerial.print(clearScreen);
mySerial.print(message);
}

void loop() {
// ...
}

[Railroader]

Please post schematics.

[prashanthreddyg]

Normal 16x2 display shows garbage values, whenever I switch on load to other condition.

[TomGeorge]

Hi, @prashanthreddyg
Welcome to the forum.

Sorry but we need properly labeled circuit diagram, not a Fritzy image.
Can you please draw your circuit with component labels and pin names and post an image of it.

Please post link to data/specs of BPI-216?

To add code please click this link;

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Thanks.. Tom...

[prashanthreddyg]

RS232_Seetron_BPI_216.pdf (253.1 KB)
I'm trying to display my Arduino o/p on this.

[TomGeorge]

Hi,
What relays are you using?
Can please post a link to data/specs?

Are they relay modules with om board driver/isolation?
Also if you layout is like the Fritzy, you are pulling relay coil current though the full length of the protoboard, move the relay power 5v and gnd connections to where the 5v and gnd comes onto the protoboard from the UNO.

Tom...

Thanks.. Tom...