TimeCapsule

Time Capsule USB

Description

What is Time Capsule USB?

Time Capsule USB is a custom PCB using the RP2040 microcontroller that functions as a sort of time capsule. It alows you upload files to it, which can only be accessed after a certain date that you set. Due to the limits of battery life, it's not meant to be used for long-term storage, but it should last about 7 years and then about 1 year of the LED blinking to indicate that the time has come to access the files. The main limit is that CR2032 batteries only last about 10 years and naturally discharge over time.

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Why I Made This

I wanted to create a simple yet fun project that would allow me to learn about PCB design and microcontrollers, using RTC and other components, I felt like I learned a lot!

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Features

• RP2040 Microcontroller: Wow! It's micro, and it controls things!
• Storage: A whopping 16MB of flash storage for the code and files you want to store!
• Time Lock: Just name the file the date you want to unlock it.
• Battery Life: Powered by a CR2032 battery, it can last up to 7 years. Meaning, don't go past that date, or you will lose the files!
• RTC: Super duper efficient clock that runs on battery for years.
• LED indicator: Thats right, IT EVEN HAS AN LED! Once a file is ready to be accessed, the LED will blink to indicate that the time has come. it can do this for about a year before the battery dies.

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How to Use

1. Upload Files: Connect the Time Capsule USB to your computer and upload files to it. (will appear as a USB drive)
2. Set Unlock Date: Name the file with the date you want to unlock it (e.g., 2025-12-31.txt).
3. Disconnect: Your files will no longer appear until the date!

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Project Pictures

Bill of Materials (BOM)