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Description
BigTime Watch Kitsku: KIT 10870 It's official, SparkFun has made the Big Time, and now you can make it too! The BigTime watch kit is a geekishly stylish digital watch with a watch band and a slick acrylic enclosure. If it seems familiar, that's because it's essentially our open source branch from the SpikenzieLabs' Solder: Time kit. The heart of the kit is the much venerated ATMega328 using a 32kHz clock source to keep time. To check the time, just press the button on
sku: KIT-10870
It's official, SparkFun has made the Big Time, and now you can make it too! The BigTime watch kit is a geekishly stylish digital watch with a watch-band and a slick acrylic enclosure. If it seems familiar, that's because it's essentially our open-source branch from the SpikenzieLabs' Solder:Time kit. The heart of the kit is the much venerated ATMega328 using a 32kHz clock-source to keep time. To check the time, just press the button on the side of the watch and it pops up on a 4-digit 7-segment LED display. Thanks to some low-level hackery, the ATMega is running at super low power and should get an estimated 2 years of run time on a single CR2032 coin cell!
The BigTime is a through-hole kit with a low parts-count, so it makes a great project for beginning solderers. After you've finished soldering together the PCB, simply stack the acrylic pieces around it and screw them together with the included hex-head screws. Once that's done, pop in the coin-cell battery and go show off your nerd bling!
Did we mention that the watch kit is super hackable? An FTDI header is broken out to the side of the board and the watch-firmware is running on top of a bootloader! This means that all you need to do to add your own code is to open up Arduino or Wiring and select "Arduino Pro or Pro Mini 3.3V/8MHz w/ ATmega328" as your board.
Kit Includes
- 1 x Pre-programmed ATMega328 DIP IC
- 1 x 4-Digit 7-Segment Display
- 1 x 32kHz Crystal
- 1 x 10kOhm Resistor
- 2 x 0.1uF Capacitors
- 1 x Right Angle Tactile Button
- 1 x 20mm Coin Cell Battery Holder
- 1 x 20mm Coin Cell Battery
- 4 x 4-40 Screws
- 1 x Allen Wrench
- 1 x Watch Band
- Acrylic Enclosure Parts
- Assembly Guide
Features
- Very hackable ATMega328-based kit with Arduino boot loader
- All through-hole components
- Estimated 2-year battery life
- Laser-cut acrylic enclosure
- Large, easy-to-read display
- Adjustable watch-band
Documents
- Schematic
- Eagle Files
- Firmware
- Github (latest firmware)
- Enclosure Files
- Assembly Guide
- Adventures in Low Power Land
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Thank you. They are great.
Size: 100 Count (Pack of 1)
Perfect! Use them all the time. Nice and easy. Works great. Pretty sturdy too :)
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Great value and super convenient for everyday use!
Size: 300 Count
exactly what I needed for busy days and quick cleanups. They’re sturdy enough for everyday meals like sandwiches, snacks, and even lighter hot foods without getting soggy or falling apart.
I love the convenience of having such a large pack on hand — it lasts a long time and is perfect for families, parties, or meal prep days. The size is just right for most meals, and they stack easily for storage.
For the price and quantity, it’s a great deal and saves so much time on dishwashing. Definitely a household staple I keep restocking!
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Dixie Is Good But
Size: 150 Count (Pack of 1)
Dixie paper plates are good but these are better! The durability of them is just as good as Dixie. The leak-proofness is just as good as Dixie. The 10 inch size makes them versatile for everyday use. The main reason why they are better than Dixie is because they’re a lot cheaper and you get double the amount for less $$
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Great quality. Don’t think it twice and buy!
Size: 100 Count
When I bought this plates I was not so sure of the quality of the material however, they exceeded my expectations. They are thick and durable. The design and color were perfect and matched with my decoration. The amount of plates for the value was a great deal and I will definitely buy them again and again. Trust me when I say I don’t like most of the disposable paper plates out there and this make a huge difference with how good quality they are and how inexpensive they’re.
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Strong Enough for Everyday Use, No Surprises
Size: 150 Count (Pack of 1)
These are exactly what you want from everyday disposable plates.
They’re sturdy enough to handle normal meals without bending or soaking through, even with heavier or messier foods. I’ve used them for things like pasta and leftovers, and they held up better than expected for a budget option.
The 10-inch size is a good middle ground, big enough for full meals but not oversized. They also hold up fine in the microwave without getting too soft.
They’re still paper plates at the end of the day, so if you’re loading them up with really heavy or greasy food, you might want to double up just to be safe.
Overall, these are a reliable, no-frills option that works well for daily use, gatherings, or quick cleanup situations.
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Reviewed in the United States on April 18, 2026