Any C programmers on here?

Dansin · Nov 19, 2014

For use with an arduino, I need help with a menu/submenu sketch. If anyone has a clue then I'll post up the sketch. :thumb2

Fanum · Nov 19, 2014

I used to do a lot of c and c++ programming (it's basically just arguing with yourself in ever decreasing circles

), and I know what an arduino module is, but I have absolutely no idea how to link the two together.

So consider this just as a :bounce1

PS there are almost certainly a hundred nerdy forums specifically devoted to arduino littlebits......I bet they slag off raspberry pi owners as much as airhead riders slag off WC owners

Deleted account 230523001 · Nov 19, 2014

I think there is a section for this shite, so fuck off there then innit.

Dansin · Nov 20, 2014

Fanum said:
I used to do a lot of c and c++ programming (it's basically just arguing with yourself in ever decreasing circles ), and I know what an arduino module is, but I have absolutely no idea how to link the two together.

So consider this just as a

PS there are almost certainly a hundred nerdy forums specifically devoted to arduino littlebits......I bet they slag off raspberry pi owners as much as airhead riders slag off WC owners

I'll post it up. You never know, you may have the answer straight away!

I've tried on the nerdy forums but no luck so far.

att said:
I think there is a section for this shite, so fuck off there then innit.

Att is of course correct. If required, can a mod please move this to the IT section?

Dansin · Nov 20, 2014

Code is below. Hardware is an arduino, a GPS module, a seven segment display and a button. The arduino interrogates the GPS for a data string and then outputs the result to the display. Currently the menu scrolls 1, 2, 3, 4, 1 etc. The four things currently displayed are HEADING, MPH, KMPH, TIME. It's going to be used as a CAP repeater without the need for a separate GPS/satnav.

3 things I want to achieve:-

Have SPEED selectable between MPH or KMPH rather than displaying both.

Have BRIGHTNESS selectable in BRIGHT, NORMAL and DIM. Rather than having another menu item I want to do that when TIME is displayed.

Store the chosen settings on the Eeprom of the arduino so that they're remembered the next time the unit is powered up.

There are ways to achieve the submenu routines with a single button using a long press etc., but for simplicity and ease of use on the road, I want to use a second button.

I'm guessing the menu structure will be something like:-

Main menu

HEADING

SPEED - submenu - MPH, KMPH

TIME - submenu - BRIGHT, NORMAL, DIM

The mph/kmph bits are fairly obvious. The brightness settings will be achieved by

Code:

matrix.setBrightness(15);

with 15 being brightest.

Edit:- Button one will scroll the main menu items and button will scroll the submenu items.

It's working as is on a breadboard.

The case is designed and away being 3D printed (although I'll need to cut another hole for the second button).

Code:

#include <Bounce2.h>
#include <Adafruit_LEDBackpack.h>
#include <Adafruit_GFX.h>
#include <Wire.h>
#include <TinyGPS++.h>
#include <SoftwareSerial.h>

int Heading;
int Mph;
int Kph;
int Time;

#define BUTTON_PIN 2

Bounce  debouncer  = Bounce();

Adafruit_7segment matrix = Adafruit_7segment();

static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 9600;

TinyGPSPlus gps;

SoftwareSerial ss(RXPin, TXPin);

unsigned long last = 0UL;

byte menu = 1;

void buttonState(){
      while (debouncer.update()) {
      if (debouncer.read() == HIGH)
      menu++;
      if (menu>4) menu = 1;
      matrix.clear();
        }
}        
    void condition1()
    {
      if (gps.course.isUpdated())
      if (gps.speed.kmph() <5)
      {
        matrix.writeDigitRaw(0,118); //H
        matrix.writeDigitRaw(1,0); //
        matrix.writeDigitRaw(3,0); //
        matrix.writeDigitRaw(4,0); //
        matrix.writeDisplay(); 
      }
      else
      {
        Heading = (gps.course.deg());
        matrix.print(Heading);
        matrix.writeDigitRaw(0,118); //H
        matrix.writeDisplay();
        Serial.println("Heading ") & Serial.println(gps.course.deg()); 
       }
    }
    
    void condition2()
    {
      if (gps.speed.isUpdated())
      if (gps.speed.kmph() <5)
      {
        matrix.writeDigitRaw(0,8); //_
        matrix.writeDigitRaw(1,0); //
        matrix.writeDigitRaw(3,0); //
        matrix.writeDigitRaw(4,0); //
        matrix.writeDisplay();     
      }
    else
      {
        Mph = (gps.speed.mph());
        matrix.print(Mph);
        matrix.writeDigitRaw(0,8); //_
        matrix.writeDisplay();
        Serial.println("Mph ") & Serial.println(gps.speed.mph());  
       }
     }
    
    void condition3()
    {
      if (gps.speed.isUpdated())
      if (gps.speed.kmph() <5)
      {      
        matrix.writeDigitRaw(0,1); //~
        matrix.writeDigitRaw(1,0); //-
        matrix.writeDigitRaw(3,0); //-
        matrix.writeDigitRaw(4,0); //-
        matrix.writeDisplay();
    }
    else
      {
        Kph = (gps.speed.kmph());
        matrix.print(Kph);
        matrix.writeDigitRaw(0,1); //~
        matrix.writeDisplay();
        Serial.println("Kph ") & Serial.println(gps.speed.kmph()); 
       }
    }
    
    void condition4(){
        if (gps.time.isUpdated())
        Time = ((gps.time.hour()) *100) + gps.time.minute();
        matrix.print(Time);
        matrix.drawColon(true);
        matrix.writeDisplay();
        Serial.println("Time ") & Serial.print((gps.time.hour()) *100)+ gps.time.minute(); 
    }

void setup()
{
  matrix.begin(0x70);
  // matrix.setBrightness(15);
  Serial.begin(115200);
  ss.begin(GPSBaud);
  pinMode(BUTTON_PIN,INPUT_PULLUP);
  debouncer.attach(BUTTON_PIN);
  debouncer.interval(5);
}

void loop(){
  while (ss.available() > 0)
    gps.encode(ss.read());
      {
       switch (menu) {
      case 1:
          condition1();
          break;
      case 2:
          condition2();
          break;
      case 3:
          condition3();
          break; 
      case 4:
          condition4();
          break; 
      }
      buttonState();
      }
}

John Roberts · Nov 20, 2014

att said:
I think there is a section for this shite, so fuck off there then innit.

FFS Att, there's a Rant section for 95% of what you write! :yelrotflm

Chunk · Nov 21, 2014

If it's working as a prototype, then what do you need help with ?

I've never used an arduino, although I know a couple of people that do. The code shown is pretty simple, but uses many library functions which are device specific and therefore I'm unfamiliar with.
I was under the impression there was a large arduino community with plenty of open source libraries and knowledge available.

GS_or_bust · Nov 21, 2014

You can PM me if you would like some help. The changes are pretty straight forward.

Dansin · Nov 21, 2014

Chunk said:
If it's working as a prototype, then what do you need help with ?

I've never used an arduino, although I know a couple of people that do. The code shown is pretty simple, but uses many library functions which are device specific and therefore I'm unfamiliar with.
I was under the impression there was a large arduino community with plenty of open source libraries and knowledge available.

It is functioning but I can't work out how to add the submenus. If I had an example of one, I'm sure I could adapt it. It is simple enough if you know what you are doing but it's taken me a few weeks to get this far with it. As for storing the selected values in the eeprom, I haven't the foggiest.

GS_or_bust said:
You can PM me if you would like some help. The changes are pretty straight forward.

Thank you. Will send a PM. :thumb2

Dansin · Nov 24, 2014

Current code

Code:

#include <Bounce2.h> //button debouncing
#include <Adafruit_LEDBackpack.h> //required to drive the 7 segment display
#include <Adafruit_GFX.h> //required to drive the 7 segment display
#include <Wire.h> //required to drive the 7 segment display
#include <TinyGPS++.h> //pulls the data from the GPS statements
#include <SoftwareSerial.h> // allows serial communication on digital pins

int Heading;
int Mph;
int Kph;
int Time;

#define BUTTON_1 2
#define BUTTON_2 5

Bounce  debouncer  = Bounce();

Adafruit_7segment matrix = Adafruit_7segment();

static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 9600;

TinyGPSPlus gps;

SoftwareSerial ss(RXPin, TXPin);

unsigned long last = 0UL;

byte menu = 1;

void buttonState(){
      while (debouncer.update()) {
      if (debouncer.read() == HIGH)
      menu++;
      if (menu>4) menu = 1;
      matrix.clear();
        }
}        
    void condition1()
    {
      if (gps.course.isUpdated())
      if (gps.speed.kmph() <5)
      {
        matrix.writeDigitRaw(0,118); //H
        matrix.writeDigitRaw(1,0); //
        matrix.writeDigitRaw(3,0); //
        matrix.writeDigitRaw(4,0); //
        matrix.writeDisplay(); 
      }
      else
      {
        Heading = (gps.course.deg());
        matrix.print(Heading);
        matrix.writeDigitRaw(0,118); //H
        matrix.writeDisplay();
        Serial.println("Heading ") & Serial.println(gps.course.deg()); 
       }
    }
    
    void condition2()
    {
      if (gps.speed.isUpdated())
      if (gps.speed.kmph() <5)
      {
        matrix.writeDigitRaw(0,8); //_
        matrix.writeDigitRaw(1,0); //
        matrix.writeDigitRaw(3,0); //
        matrix.writeDigitRaw(4,0); //
        matrix.writeDisplay();     
      }
    else
      {
        Mph = (gps.speed.mph());
        matrix.print(Mph);
        matrix.writeDigitRaw(0,8); //_
        matrix.writeDisplay();
        Serial.println("Mph ") & Serial.println(gps.speed.mph());  
       }
     }
    
    void condition3()
    {
      if (gps.speed.isUpdated())
      if (gps.speed.kmph() <5)
      {      
        matrix.writeDigitRaw(0,1); //~
        matrix.writeDigitRaw(1,0); //-
        matrix.writeDigitRaw(3,0); //-
        matrix.writeDigitRaw(4,0); //-
        matrix.writeDisplay();
    }
    else
      {
        Kph = (gps.speed.kmph());
        matrix.print(Kph);
        matrix.writeDigitRaw(0,1); //~
        matrix.writeDisplay();
        Serial.println("Kph ") & Serial.println(gps.speed.kmph()); 
       }
    }
    
    void condition4(){
        if (gps.time.isUpdated())
        Time = ((gps.time.hour()) *100) + gps.time.minute();
        matrix.print(Time);
        matrix.drawColon(true);
        matrix.writeDisplay();
        Serial.println("Time ") & Serial.print((gps.time.hour()) *100)+ gps.time.minute(); 
    }

void setup()
{
  matrix.begin(0x70);
  // matrix.setBrightness(15);
  Serial.begin(115200);
  ss.begin(GPSBaud);
  pinMode(BUTTON_1,INPUT_PULLUP);
  debouncer.attach(BUTTON_1);
  debouncer.interval(5);
}

void loop(){
  while (ss.available() > 0)
    gps.encode(ss.read());
      {
       switch (menu) {
      case 1:
          condition1();
          break;
      case 2:
          condition2();
          break;
      case 3:
          condition3();
          break; 
      case 4:
          condition4();
          break; 
      }
      buttonState();
      }
}

David Nimrod · Nov 24, 2014

Dansin said:
For use with an arduino, I need help with a menu/submenu sketch

Now in Computer Section - 'cos I haven't got a clue what yer on about :thumb2

Millmax · Nov 24, 2014

Feckon ell, it must be great to be clever.

GS_or_bust · Nov 24, 2014

See if this compiles:

Code:

#include  //button debouncing
#include  //required to drive the 7 segment display
#include  //required to drive the 7 segment display
#include  //required to drive the 7 segment display
#include  //pulls the data from the GPS statements
#include  // allows serial communication on digital pins

int Heading;
int Mph;
int Kph;
int Time;

#define BUTTON_1 2
#define BUTTON_2 5

Bounce  debouncer  = Bounce();
Bounce  debouncer2  = Bounce();

Adafruit_7segment matrix = Adafruit_7segment();

static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 9600;

TinyGPSPlus gps;

SoftwareSerial ss(RXPin, TXPin);

unsigned long last = 0UL;

byte menu = 1;
byte kph = false;
byte bightness = 1;

void buttonState(){
	byte buttonchange = true;
	while (buttonchange)
	{
	     buttonchange = false;
	     if (debouncer.update())
		 {
			if (debouncer.read() == HIGH)
			{
				menu++;
				if (menu>3) menu = 1;
				matrix.clear();
			}
			buttonchange=true;
		}
	     if (debouncer2.update())
		{
			if (debouncer2.read() == HIGH)
			{
				switch (menu)
				{
				case 2:
					kph=!kph;
					matrix.clear();
					break;
				case 3:
					brightness++;
					if (brightness>3) brightness=1;
					matrix.setBrightness(brightness*5);
					matrix.clear();
					break;
				}
			}
			buttonchange=true;
		}
	}
}        
    void conditionHeading()
    {
      if (gps.course.isUpdated())
      if (gps.speed.kmph() <5)
      {
        matrix.writeDigitRaw(0,118); //H
        matrix.writeDigitRaw(1,0); //
        matrix.writeDigitRaw(3,0); //
        matrix.writeDigitRaw(4,0); //
        matrix.writeDisplay(); 
      }
      else
      {
        Heading = (gps.course.deg());
        matrix.print(Heading);
        matrix.writeDigitRaw(0,118); //H
        matrix.writeDisplay();
        Serial.println("Heading ") & Serial.println(gps.course.deg()); 
       }
    }
    
    void conditionMph()
    {
      if (gps.speed.isUpdated())
      if (gps.speed.kmph() <5)
      {
        matrix.writeDigitRaw(0,8); //_
        matrix.writeDigitRaw(1,0); //
        matrix.writeDigitRaw(3,0); //
        matrix.writeDigitRaw(4,0); //
        matrix.writeDisplay();     
      }
    else
      {
        Mph = (gps.speed.mph());
        matrix.print(Mph);
        matrix.writeDigitRaw(0,8); //_
        matrix.writeDisplay();
        Serial.println("Mph ") & Serial.println(gps.speed.mph());  
       }
     }
    
    void conditionKph()
    {
      if (gps.speed.isUpdated())
      if (gps.speed.kmph() <5)
      {      
        matrix.writeDigitRaw(0,1); //~
        matrix.writeDigitRaw(1,0); //-
        matrix.writeDigitRaw(3,0); //-
        matrix.writeDigitRaw(4,0); //-
        matrix.writeDisplay();
    }
    else
      {
        Kph = (gps.speed.kmph());
        matrix.print(Kph);
        matrix.writeDigitRaw(0,1); //~
        matrix.writeDisplay();
        Serial.println("Kph ") & Serial.println(gps.speed.kmph()); 
       }
    }
    
    void conditionTime(){
        if (gps.time.isUpdated())
        Time = ((gps.time.hour()) *100) + gps.time.minute();
        matrix.print(Time);
        matrix.drawColon(true);
        matrix.writeDisplay();
        Serial.println("Time ") & Serial.print((gps.time.hour()) *100)+ gps.time.minute(); 
    }

void setup()
{
  matrix.begin(0x70);
  // matrix.setBrightness(15);
  Serial.begin(115200);
  ss.begin(GPSBaud);
  pinMode(BUTTON_1,INPUT_PULLUP);
  pinMode(BUTTON_2,INPUT_PULLUP);
  debouncer.attach(BUTTON_1);
  debouncer.interval(5);
  // set up second button debouncer
  debouncer2.attach(BUTTON_2);
  debouncer2.interval(5);
}

void loop(){
  while (ss.available() > 0)
    gps.encode(ss.read());
      {
       switch (menu) {
      case 1:
          conditionHeading();
          break;
      case 2:
			if (kph)
				conditionKph();
			else
				conditionMph();
          break;
      case 3:
          conditionTime();
          break; 
      }
      buttonState();
      }
}

GS_or_bust · Nov 24, 2014

This should retain previous settings in eeprom.

Code:

#include <Bounce2.h> //button debouncing
#include <Adafruit_LEDBackpack.h> //required to drive the 7 segment display
#include <Adafruit_GFX.h> //required to drive the 7 segment display
#include <Wire.h> //required to drive the 7 segment display
#include <TinyGPS++.h> //pulls the data from the GPS statements
#include <SoftwareSerial.h> // allows serial communication on digital pins
#include <EEPROM.h>

int Heading;
int Mph;
int Kph;
int Time;

#define BUTTON_1 2
#define BUTTON_2 5

Bounce  debouncer  = Bounce();
Bounce  debouncer2  = Bounce();

Adafruit_7segment matrix = Adafruit_7segment();

static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 9600;

TinyGPSPlus gps;

SoftwareSerial ss(RXPin, TXPin);

unsigned long last = 0UL;

byte menu = 1;
byte kphView = false;
byte brightness = 1;

void buttonState(){
	byte buttonchange = true;
	while (buttonchange)
	{
	     buttonchange = false;
	     if (debouncer.update())
		 {
			if (debouncer.read() == HIGH)
			{
				menu++;
				if (menu>3) menu = 1;
				matrix.clear();
				EEPROM.write(0,menu);
			}
			buttonchange=true;
		}
	     if (debouncer2.update())
		{
			if (debouncer2.read() == HIGH)
			{
				switch (menu)
				{
				case 2:
					kphView=!kphView;
					matrix.clear();
					EEPROM.write(1,kphView);
					break;
				case 3:
					brightness++;
					if (brightness>3) brightness=1;
					matrix.setBrightness(brightness*5);
					matrix.clear();
					EEPROM.write(2,brightness);
					break;
				}
			}
			buttonchange=true;
		}
	}
}        
    void conditionHeading()
    {
      if (gps.course.isUpdated())
      if (gps.speed.kmph() <5)
      {
        matrix.writeDigitRaw(0,118); //H
        matrix.writeDigitRaw(1,0); //
        matrix.writeDigitRaw(3,0); //
        matrix.writeDigitRaw(4,0); //
        matrix.writeDisplay(); 
      }
      else
      {
        Heading = (gps.course.deg());
        matrix.print(Heading);
        matrix.writeDigitRaw(0,118); //H
        matrix.writeDisplay();
        Serial.println("Heading ") & Serial.println(gps.course.deg()); 
       }
    }
    
    void conditionMph()
    {
      if (gps.speed.isUpdated())
      if (gps.speed.kmph() <5)
      {
        matrix.writeDigitRaw(0,8); //_
        matrix.writeDigitRaw(1,0); //
        matrix.writeDigitRaw(3,0); //
        matrix.writeDigitRaw(4,0); //
        matrix.writeDisplay();     
      }
    else
      {
        Mph = (gps.speed.mph());
        matrix.print(Mph);
        matrix.writeDigitRaw(0,8); //_
        matrix.writeDisplay();
        Serial.println("Mph ") & Serial.println(gps.speed.mph());  
       }
     }
    
    void conditionKph()
    {
      if (gps.speed.isUpdated())
      if (gps.speed.kmph() <5)
      {      
        matrix.writeDigitRaw(0,1); //~
        matrix.writeDigitRaw(1,0); //-
        matrix.writeDigitRaw(3,0); //-
        matrix.writeDigitRaw(4,0); //-
        matrix.writeDisplay();
    }
    else
      {
        Kph = (gps.speed.kmph());
        matrix.print(Kph);
        matrix.writeDigitRaw(0,1); //~
        matrix.writeDisplay();
        Serial.println("Kph ") & Serial.println(gps.speed.kmph()); 
       }
    }
    
    void conditionTime(){
        if (gps.time.isUpdated())
        Time = ((gps.time.hour()) *100) + gps.time.minute();
        matrix.print(Time);
        matrix.drawColon(true);
        matrix.writeDisplay();
        Serial.println("Time ") & Serial.print((gps.time.hour()) *100)+ gps.time.minute(); 
    }

void setup()
{
  matrix.begin(0x70);
  // matrix.setBrightness(15);
  Serial.begin(115200);
  ss.begin(GPSBaud);
  pinMode(BUTTON_1,INPUT_PULLUP);
  pinMode(BUTTON_2,INPUT_PULLUP);
  debouncer.attach(BUTTON_1);
  debouncer.interval(5);
  // set up second button debouncer
  debouncer2.attach(BUTTON_2);
  debouncer2.interval(5);
  // read previos settings from eeprom
  menu = EEPROM.read(0);
  if (menu<1||menu>3) menu = 1;
  kphView = EEPROM.read(1);
  brightness = EEPROM.read(2);
  if (brightness<1||brightness>3) brightness = 3;
	matrix.setBrightness(brightness*5);
}

void loop(){
  while (ss.available() > 0)
    gps.encode(ss.read());
      {
       switch (menu) {
      case 1:
          conditionHeading();
          break;
      case 2:
			if (kphView)
				conditionKph();
			else
				conditionMph();
          break;
      case 3:
          conditionTime();
          break; 
      }
      buttonState();
      }
}

Dansin · Nov 24, 2014

It compiles. :clap

Will send you an email.

stolzy · Nov 24, 2014

I used to do a bit of 6502 assember, if that's any help

Dansin · Nov 24, 2014

stolzy said:
I used to do a bit of 6502 assember, if that's any help

I have absolutely no idea what that is.

A big public thank you goes out to GS_or_bust, you're the man. :clap

When the case comes back from the 3D printers it's time to assemble and test.

It's to use on a navigation tower on the bike. They are commercially available but cost £250+ and you also need a GPS and cradle such as a Garmin 60CSX at £100+ (second hand) to feed the CAP repeater the GPS statements.

Total cost for this little project is about £65 and I won't need the separate GPS as I've incorporated it all in the unit.

GS_or_bust · Nov 24, 2014

stolzy said:
I used to do a bit of 6502 assember, if that's any help

Acorn System 1, those were the days. Calculating jump relatives.

Any C programmers on here?

Dansin

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Reality you can rely on...

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