DCS Bios and Sparkfun Alphanumric display

[Chickenbone72]

:helpsmilie:

 

I have purchased a 14 segment display https://core-electronics.com.au/qwii...splay-red.html and am having trouble get it to work in dcs for the A-10C TACAN. I am able to use the basic arduino / Sparkfun code and get display to function in arduino. but cant work out how to get it to work in DCS-BIOS. I'll paste what I am working with so far but nothing displaying on display. other arduinos are working fine, so DCS and Bios are installed correctly,

 

any help or code would be greatly appreciated

 

i have Arduino mega's , uno's and nano's

 

 

/*

Tell DCS-BIOS to use a serial connection and use interrupt-driven

communication. The main program will be interrupted to prioritize

processing incoming data.

 

This should work on any Arduino that has an ATMega328 controller

(Uno, Pro Mini, many others).

*/

#include <Wire.h>

 

#include <SparkFun_Alphanumeric_Display.h>

 

#define DCSBIOS_IRQ_SERIAL

 

#include "DcsBios.h"

 

HT16K33 display;

 

/* paste code snippets from the reference documentation here */

 

void onTacanChannelChange(char* newValue) {

/* your code here */

display.write(0, newValue[3]);

display.write(1, newValue[2]);

display.write(2, newValue[1]);

display.write(3, newValue[0]);

}

DcsBios::StringBuffer<4> tacanChannelBuffer(0x1162, onTacanChannelChange);

 

void setup() {

display.begin();

DcsBios::setup();

}

 

void loop() {

DcsBios::loop();

}

[BoboBear]

I think you're missing a call to update the display in your loop()

 

I don't have the Sparkfun display library, but it's probably something like:-

 

display.writeDisplay();

 

Take a look at the example sketch with the library

[Chickenbone72]

cool I'll give it a try, thx

[Chickenbone72]

I think you're missing a call to update the display in your loop()

 

I don't have the Sparkfun display library, but it's probably something like:-

 

display.writeDisplay();

 

Take a look at the example sketch with the library

 

 

this code compiles but no display when connected to DCS Bios

 

#include <Wire.h>

 

#include <SparkFun_Alphanumeric_Display.h> //Click here to get the library: http://librarymanager/All#Alphanumeric_Display by SparkFun

HT16K33 display;

 

#define DCSBIOS_IRQ_SERIAL

 

#include "DcsBios.h"

 

/* paste code snippets from the reference documentation here */

 

void onTacanChannelChange(char* newValue) {

/* your code here */

 

display.printChar(newValue[0], 0);

display.printChar(newValue[1], 1);

display.printChar(newValue[2], 2);

display.printChar(newValue[3], 3);

display.updateDisplay();

 

DcsBios::StringBuffer<4> tacanChannelBuffer(0x1162, onTacanChannelChange);

}

void setup() {

Wire.begin(); //Join I2C bus

display.begin();

DcsBios::setup();

 

 

 

}

 

void loop() {

DcsBios::loop();

 

}

[Chickenbone72]

Also tried this one and no info coming up exept the " BIT" i have it printing for 1 sec

 

#include <SparkFun_Alphanumeric_Display.h> //Click here to get the library: http://librarymanager/All#Alphanumeric_Display by SparkFun

HT16K33 display;

 

#include <Wire.h>

#define DCSBIOS_IRQ_SERIAL

 

#include "DcsBios.h"

 

/* paste code snippets from the reference documentation here */

 

void onTacanChannelChange(char* newValue) {

/* your code here */

 

display.print(0, newValue[0]);

display.print(1, newValue[1]);

display.print(2, newValue[2]);

display.print(3, newValue[3]);

display.updateDisplay();

 

DcsBios::StringBuffer<4> tacanChannelBuffer(0x1162, onTacanChannelChange);

}

void setup() {

Wire.begin(); //Join I2C bus

display.begin();

display.setBrightness(14);

DcsBios::setup();

// write something to the display

// so you see something before data is received

display.print(" BIT");

delay(1000);

display.clear();

 

 

}

 

void loop() {

DcsBios::loop();

 

}

[BoboBear]

 

void onTacanChannelChange(char* newValue) {

/* your code here */

 

display.print(0, newValue[0]);

display.print(1, newValue[1]);

display.print(2, newValue[2]);

display.print(3, newValue[3]);

display.updateDisplay();

 

DcsBios::StringBuffer<4> tacanChannelBuffer(0x1162, onTacanChannelChange);

}

 

 

Is that a typo?

 

DcsBios::StringBuffer<4> tacanChannelBuffer(0x1162, onTacanChannelChange);

 

Should be outside of onTacanChannelChange procedure

 

Also, I would suggest moving the display.updateDisplay() call to just after DcsBios::loop(). That way if multiple things get updated in one DCSBios update you only write once to the i2c

[Chickenbone72]

ok i went to a mega and this code. turns out the uno was FUBAR code working fine. thank you BoboBear

 

#include <Wire.h>

 

#include <SparkFun_Alphanumeric_Display.h> //Click here to get the library: http://librarymanager/All#Alphanumeric_Display by SparkFun

HT16K33 display;

 

// include DCS-BIOS Arduino library

#define DCSBIOS_IRQ_SERIAL

#include "DcsBios.h"

 

void onTacanChannelChange(char* newValue) {

// when we get new data for the TACAN channel, write it to the display

// you might need to reverse the display (go from newValue[3] to

// newValue[0]) if it is the wrong way around.

display.clear();

display.printChar(newValue[0], 0);

display.printChar(newValue[1], 1);

display.printChar(newValue[2], 2);

display.printChar(newValue[3], 3);

display.updateDisplay();

}

DcsBios::StringBuffer<4> tacanChannelBuffer(0x1162, onTacanChannelChange);

 

void setup() {

display.begin();

display.setBrightness(12);

display.clear();

Wire.begin(); //Join I2C bus

DcsBios::setup();

}

 

void loop() {

DcsBios::loop();

}

Edited August 6, 2020 by Chickenbone72
Fixed problem with code