# Source: https://learn.adafruit.com/timesquare-watch-kit/uploading-new-firmware.md

# TIMESQUARE Watch Kit

## Uploading New Firmware

Now you've had your watch for a few days/weeks/months and you want to come up with your own watch designs. Lucky for you, this watch is designed specifically to be super easy to hack! If you know how to program Arduino, you're basically already there.  
  
You'll need the Arduino IDE, and also some knowledge of how to read and write Arduino code.  
  
To program the watch itself, you'll need an [FTDI cable](https://www.adafruit.com/products/70) o[r FTDI Friend](https://www.adafruit.com/products/284). This will connect your computer to the watch. If you're using an FTDI cable or anything other than the Friend, you'll also need some [extra long header](https://www.adafruit.com/products/400) to press-fit.  
  
Simply place a 6-pin extra long header into the FTDI connector and slip the other end into the top of the watch PCB, to match this photo.&nbsp; Be sure to have a battery in the watch, as it does need to be powered while programming!

![](https://cdn-learn.adafruit.com/assets/assets/000/002/870/medium800/adafruit_products_ftdi.jpg?1396788140)

Next, download the TIMESQUARE watch codebase from github. [Visit the github page and click on](https://github.com/adafruit/TIMESQUARE-Watch)**[DOWNLOAD](https://github.com/adafruit/TIMESQUARE-Watch)****[](https://github.com/adafruit/TIMESQUARE-Watch)**[to download the ZIP file](https://github.com/adafruit/TIMESQUARE-Watch) and uncompress the folder.   
Rename the folder to **Watch** (check that the renamed folder contains the **Watch**.cpp and **Watch**.h files) and install into the **arduinosketches/libraries** folder. [For information how to use and install libraries, see our tutorial](http://learn.adafruit.com/arduino-tips-tricks-and-techniques/arduino-libraries)!   
  
Restart the IDE  
  
When programming, select **Lilypad Arduino w/ ATmega328** as the "board" type

- [Previous Page](https://learn.adafruit.com/timesquare-watch-kit/time-display-modes.md)
- [Next Page](https://learn.adafruit.com/timesquare-watch-kit/downloads.md)

## Featured Products

### TIMESQUARE DIY Watch Kit - Red Display Matrix

[TIMESQUARE DIY Watch Kit - Red Display Matrix](https://www.adafruit.com/product/1106)
Show up stylish AND on time to any event with this awesome looking DIY watch. We have a few watch kits here at Adafruit but we finally have one that looks good and fits well, even for ladies and kids and others with smaller wrists and hands. Its got an 8x8 bit matrix display and a repurposed...

No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1106)
[Related Guides to the Product](https://learn.adafruit.com/products/1106/guides)
### TIMESQUARE DIY Watch Kit - Tangerine Display Matrix

[TIMESQUARE DIY Watch Kit - Tangerine Display Matrix](https://www.adafruit.com/product/1223)
Show up stylish AND on time to any event with this awesome looking DIY watch. We have a few watch kits here at Adafruit but we finally have one that looks good and fits well, even for ladies and kids and others with smaller wrists and hands. Its got an 8x8 bit matrix display and a repurposed...

No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1223)
[Related Guides to the Product](https://learn.adafruit.com/products/1223/guides)
### TIMESQUARE DIY Watch Kit - Lime Display Matrix

[TIMESQUARE DIY Watch Kit - Lime Display Matrix](https://www.adafruit.com/product/1224)
Show up stylish AND on time to any event with this awesome looking DIY watch. We have a few watch kits here at Adafruit but we finally have one that looks good and fits well, even for ladies and kids and others with smaller wrists and hands. Its got an 8x8 bit matrix display and a repurposed...

No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1224)
[Related Guides to the Product](https://learn.adafruit.com/products/1224/guides)
### TIMESQUARE DIY Watch Kit - Blue Display Matrix

[TIMESQUARE DIY Watch Kit - Blue Display Matrix](https://www.adafruit.com/product/1225)
Show up stylish AND on time to any event with this awesome looking DIY watch. We have a few watch kits here at Adafruit but we finally have one that looks good and fits well, even for ladies and kids and others with smaller wrists and hands. Its got an 8x8 bit matrix display and a repurposed...

No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1225)
[Related Guides to the Product](https://learn.adafruit.com/products/1225/guides)
### TIMESQUARE DIY Watch Kit - White Display Matrix

[TIMESQUARE DIY Watch Kit - White Display Matrix](https://www.adafruit.com/product/1226)
Show up stylish AND on time to any event with this awesome looking DIY watch. We have a few watch kits here at Adafruit but we finally have one that looks good and fits well, even for ladies and kids and others with smaller wrists and hands. Its got an 8x8 bit matrix display and a repurposed...

No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1226)
[Related Guides to the Product](https://learn.adafruit.com/products/1226/guides)
### TIMESQUARE silver parts bag

[TIMESQUARE silver parts bag](https://www.adafruit.com/product/1227)
No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1227)
[Related Guides to the Product](https://learn.adafruit.com/products/1227/guides)

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