- The Databoard is a custom devboard that excels in data collection, having many things that would make it useful
- External RTC crystal (
Real Time Clock) for accurate time-keeping
- WIFI to sync up the RTC or compare values from APIs (DOESN'T WORK, SEE DEVLOG FOR MORE INFO)
- MicroSD Card slot to store data
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PCB made to be as cheap and slim as possible
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Featured on OSHWLAB, a website by JLCPCB to show hardware projects: https://oshwlab.com/anseld41/databoard
TBD
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Please follow the instructions here: https://github.com/stm32duino/Arduino_Core_STM32
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I created a PR to add my board variant, so you can follow all the official steps. However, you must install from git rather than the normal structions if you are using an STM32 verion below 2.12
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To upload code, you can use things like a USB-UART converter, ST-Link, or the included debug pins on the board.
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Only the debug pins on the board have been tested to work for uploading, it is the only method that I can use reliably as of now
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I had already made another devboard before, but I wanted to challenge myself more, and I did this by trying to make a design as slim as possible and as cheap as possible, which was wildy different from my previous project.
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Another way I challenged myself was in the features, especially with a chip with not as good documentation as the RP2040. Instead of things being a straight-forward step by step process, I had to actually read the documentation in depth, and be able to quickly use the Table of Contents to find out where the information I need is.
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Honestly, the there weren't that many that were excruciatingly difficult for designing this project. I believe this was because of the time that I spent placing the components in pretty good spots. This made it easy, for the most part, to route the traces, as long as I picked which ones should be more valued and more direct
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The painful part of this project was actually the firmware. Attemping to debug the ESP32-S2 was hellish, especially when in the end a program used to flash ESPs, ESPTOOL, kept returning no serial data found despite me being able to read serial data in other programs.
