Overview
Things
Story

Congratulations on your very own O Watch kit!
What's in the box
1. Assembling the O Watch
2. Setting up Arduino and TinyScreen Software

Published March 7, 2016 © MIT

Getting Started with O Watch

Assemble the O Watch, configure the Arduino IDE and load your first program.

BeginnerFull instructions provided1 hour1,336

Things used in this project

Hardware components

O Watch Base Kit

Software apps and online services

Arduino IDE

Story

Congratulations on your very own O Watch kit!

O Watch kit has all the pieces you will need to make your watch. In this project you will learn how electronic parts fit together and function as a product. Let’s get started!

Important! Before you start!

This great fun project will require some adult supervision.

O Watch kit contains electronics components like circuit board, battery, connecting wires and small 3D printed delicate parts.

The O Watch buttons are tiny parts that can get lost easily. Please use a clean flat surface to setup.

What's in the box?

Here is what you should have received.

Main Board - TinyScreen+ (TS+)

Sensor Board (If you got the Sensor Kit)

Rechargeable LiPo Battery

USB Cable

Case Main

Case Back

Case Buttons (2 Pairs)

Band

Paracord

Glue tabs

If you are missing any items, please contact O Watch support.

1. Assembling the O Watch

Watch the video and follow the step by step instructions below.

Assembling the O Watch Base Kit

Get to know your O Watch Board (TinyScreen+)

Unpack the items and lay them on the table

Connect the battery to main board using the white connectors. Push it in gently to ensure it is all the way in the connector. Tip: Hold the main board upside down from the sides with thumb and middle finger with pointer finger supporting it from below.

If you have a sensor board, plug that to the main board. Use provided glue foam tabs to secure the board as shown in the video.

Secure battery to the center of the main board (or sensor board) using provided glue tabs. Ensure the connecting cables wrap clockwise around to the side (with screen facing down) and stay snug and flat as shown in the video.

Move the slider switch on the side up to the ON position. If the battery is charged you should see the screen light up. Leave switch in the ON position.

Lay the watch main case upside down on the table and insert the two pairs of buttons on both sides as shown in the video.

Gently and carefully insert the connected board(s) with battery into the case, screen facing down and the buttons on the board aligned to the ones on the case. CAREFUL! Do not use force; the screen or other parts can get damaged.

Check for spacing around the battery. Adjust the position of the battery and connecting wires if they are touching side walls of the case. You do not want anything in the way when you insert the case back enclosure.

Insert the case back enclosure with the two longer legs aligned to the top of the case and the clasps on the sides aligned along in between the buttons. Again do not force it in. Press gently and if you feel any obstruction remove and clear the sides.

Once the case back is all the way in and secure, you now have the main unit ready to program.

2. Setting up Arduino and TinyScreen Software

Download and install the latest Arduino Software (IDE) from Arduino website. (On Windows click Yes/Install whenever it asks 'Do you want to install this device driver/software'. You can also select the check box 'Always trust Arduino').

Open Arduino IDE and go to File->Preferences (Windows) or Arduino->Preferences (Mac OSX).

Open Arduino Preferences

Copy and paste this URL to the box thats says "Additional Boards Manager URLs" and click ok. https://tiny-circuits.com/Downloads/ArduinoBoards/package_tinycircuits_index.json

Paste the TinyCircuits Board Manager URL

Go to Tools->Boards->Board Manager.

Open Tools->Board.>Board Manager

Select and install Arduino SAMD Boards (32 bits ARM Cortex-M0+) for Ardiuno/Genuino Zero/MKR 1000. Be patient this will take a few minutes.

Install Arduino SAMD Boards

Then on the same Board Manager, scroll down to select and install TinyCircuits SAMD Boards.

Install TinyCircuits SAMB Boards

Click here to download the TinyScreen library.

Unzip and copy the unzipped folder named TinyScreen.

Go to My Documents (Mac) or Documents (PC) folder in your computer and paste the copied TinyScreen library folder in to Arduino->Libraries folder.

Insert the micro-USB cable to the O Watch micro-USB slot gently. Connect the other side of the cable to the USB port on your computer.

Mac OSX and Windows 10 skip to the next step. Windows 7/8 users click here for device driver installation instructions before proceeding to next step.

In the Arduino IDE, go to Tools->Board and scroll down to select TinyScreen+.

Select the TinyScreen+ Board

In the IDE, go to Tools->Port and select the post showing TinyScreen+. e.g. on Mac it should show something similar to "/dev/cu.usbmodem1411 (TinyScreen+)" and on Windows similar to "COM3 (TinyScreen+)". The port numbers maybe different on your computer.

Select the TinyScreen+ on USB port

Now you are ready to upload your very first program to the O Watch!

3. Uploading your first program

Download this demo program and copy it to your Documents->Arduino folder. (My Documents->Arduino in Mac).

In the Arduino IDE, go to File->Open and select the O_Watch_Logo_Demo.ino file from the Arduino folder. Click ok when it asks to create a folder.

Make sure the Tools->Boards and Tools-Port both point to TinyScreen+.

Click the arrow icon pointing to the right on top menu bar of Arduino IDE. This is the upload button that loads the program into your O Watch. It should show 'Uploading' and then 'Done uplodading' on the status bar on below the IDE.

If it successfully uploaded then you should see the demo running on the O Watch screen.

Congrats on your first O Watch upload!

//-------------------------------------------------------------------------------
//  O Watch Basic Example
//  Last Updated 17 February 2016
//  
//  This is just a basic demo of O Watch
//
//-------------------------------------------------------------------------------

#include <TinyScreen.h>
#include <SPI.h>
#include <Wire.h>

uint8_t amtcolors=7;
uint8_t colors[]={TS_8b_Black,TS_8b_Blue,TS_8b_Red,TS_8b_Green,TS_8b_White,TS_8b_Yellow,TS_8b_Brown};

uint8_t i=0;
  
uint8_t nextColor()
{
  if(i>=amtcolors)i=0;
  return colors[i++];
}

TinyScreen display = TinyScreen(TinyScreenPlus);

void setup(void) 
{
  Wire.begin();
  display.begin();
  display.setFlip(1);
  display.setFont(liberationSans_10ptFontInfo);
}

void loop() 
{
  display.clearWindow(0,0,96,64);
  for(int i=5;i<800;i++)
  {
    int x=(3000-(i*5))%90;
    int y=(i*14)%60;
    int width=((i*7)%(90-x));
    int height=((6000-(i*6))%(60-y));
    display.drawRect(x,y,constrain(width,5,20),constrain(height,5,15),i&1,nextColor());
    display.fontColor(TS_8b_White,TS_8b_Black);
    display.setCursor(5,25);
    display.print("   O   W a t c h   ");
    if(i<10)
      delay(40);
    if(i<50)
      delay(40);
  }
  delay(50);
  display.clearWindow(0,0,96,64);
}

Credits

O Watch

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Make your own smartwatch. Learn 3D design and Arduino coding.

Getting Started with O Watch