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i made an altimeter for model rockets. built out of the same chip inside an arduino and a digital barometer chip, and outputs pressure and temperature over time at 0.1sec intervals as a csv file onto a microsd. it works great on bench power but i wanted to run it with a button battery and they have juuuuust barely too little voltage to drive the sd card. a band new one worked for like a minute. i wanted to build a circuit to boost the voltage to a full 3.3v and change the code to not write to the card as often to hopefully conserve even more power. then i had a baby and haven't touched it since. hobbies.
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Jul 22, 2013 19:08
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| # ¿ Apr 24, 2024 06:34 |
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