Hi All,

Not sure if this the right forum (happy to be pointed elsewhere). My son is attempting to compile his first TinyDuino program for the O Watch. He's followed the instructions to install the board and library but he is unable to compile the sample application.

Code Select Expand

#include <font.h>
#include <TinyScreen.h>

/* 
*   Hello World
*   This is a simple program that blinks 'Hello World'
*   This for the Arduino compatible TinyScreen+ by http://tiny-circuits.com
*   
*   This example is in the public domain.
*   Published 29 Feb 2016
*   by O Watch http://theowatch.com
*   
*/

#include <TinyScreen.h>     //Include TinyScreen library

TinyScreen display = TinyScreen(TinyScreenPlus);    //Set TinyScreen board type

int delaytime = 1000;       //Declaring a variable to set the delay between text blink

// The setup function runs once when you power on the board
void setup()
{
  display.begin();                            //Initializes TinyScreen board
  display.setFlip(1);                         //Flips the TinyScreen rightside up for O Watch
  display.on();                               //Turns TinyScreen display on
  display.setFont(liberationSansNarrow_12ptFontInfo);   //Set the fornt type
  display.fontColor(TS_8b_Blue,TS_8b_Black);            //Set the font color, font background
  display.setBrightness(10);                  //Set display brightness 0 - 15
}

// the loop function runs over and over again forever
void loop()
{
  display.setCursor(15,25);       //set the cursor to x, y position, where to start next print/draw instruction
  display.print("Hello World!");  //print command
  delay(delaytime);                    //delay for 1000 milliseconds or one second
  display.clearScreen();          //clears the screen blank
  delay(delaytime);                    //delay again for one second
}


He's getting the following errors:

Code Select Expand

Arduino: 1.6.8 (Mac OS X), Board: "TinyScreen+"

/Applications/Arduino.app/Contents/Java/arduino-builder -dump-prefs -logger=machine -hardware "/Applications/Arduino.app/Contents/Java/hardware" -hardware "/Users/ian/Library/Arduino15/packages" -tools

... {removed compilation messages to shorten listing}

"/var/folders/7g/nv9q5r4130nd95dwpz2xj0gm0000gp/T/build62a4642ee166ff819f0058ef52a39f5d.tmp/sketch/OWatch_Hello_World.ino.cpp.o"
In file included from /Users/ian/Documents/Arduino/OWatch_Hello_World/OWatch_Hello_World.ino:1:0:
/Users/ian/Documents/Arduino/libraries/TinyCircuits-TinyScreen_Lib-master/font.h:754:14: error: 'FONT_CHAR_INFO' does not name a type
static const FONT_CHAR_INFO PROGMEM liberationSans_8ptDescriptors[] =
              ^
/Users/ian/Documents/Arduino/libraries/TinyCircuits-TinyScreen_Lib-master/font.h:854:14: error: 'FONT_INFO' does not name a type
static const FONT_INFO liberationSans_8ptFontInfo =
              ^

... {removed similar messages to shorten listing}

In file included from /Users/ian/Documents/Arduino/libraries/TinyCircuits-TinyScreen_Lib-master/TinyScreen.h:134:0,
                 from /Users/ian/Documents/Arduino/OWatch_Hello_World/OWatch_Hello_World.ino:2:
/Users/ian/Documents/Arduino/libraries/TinyCircuits-TinyScreen_Lib-master/font.h:17:62: error: redefinition of 'const unsigned char liberationSans_8ptBitmaps []'
static const unsigned char PROGMEM liberationSans_8ptBitmaps[] =
                                                              ^
In file included from /Users/ian/Documents/Arduino/OWatch_Hello_World/OWatch_Hello_World.ino:1:0:
/Users/ian/Documents/Arduino/libraries/TinyCircuits-TinyScreen_Lib-master/font.h:17:36: error: 'const unsigned char liberationSans_8ptBitmaps [1078]' previously defined here
static const unsigned char PROGMEM liberationSans_8ptBitmaps[] =

... {removed similar messages to shorten listing}

Using library TinyCircuits-TinyScreen_Lib-master at version 1.1.0 in folder: /Users/ian/Documents/Arduino/libraries/TinyCircuits-TinyScreen_Lib-master
Using library SPI at version 1.0 in folder: /Users/ian/Library/Arduino15/packages/TinyCircuits/hardware/samd/1.0.1/libraries/SPI
Using library Wire at version 1.0 in folder: /Users/ian/Library/Arduino15/packages/TinyCircuits/hardware/samd/1.0.1/libraries/Wire
exit status 1
Error compiling for board TinyScreen+.

Has anyone else seen this? It looks like there is a missing set of fonts or font definitions. Any help/pointers appreciated.

Regards,

Chuck

Hi Chuck,

We just noticed this note.

From the code you've posted, it looks like the problem might be with the #include <font.h> right at the top.

Can you remove that line and try. The example posted on O Watch website doesn't have this line it.

For future, please email support@theowatch.com or you can use the O Watch community website - http://hackster.io/o-watch/ to post examples or ask questions. That way we will be able to respond fast.

Thanks,
O Watch team

We just noticed that when you add the TinyScreen library from Arduino menu, it adds <font.h> along with <tinyscreen.h> for some reason. This is an error. Please manually type in #include <TinyScreen.h> instead to avoid this for now.