Ultrasonic sensors can be used to measure distance, but if you assume the speed of sound is constant like I did youโll be sorely mistaken.
The actual speed of sound depends on both temperature and humidity so you have to compensate for both or your measurements will be inaccurate.
https://www.engineeringtoolbox.com/amp/air-speed-sound-d_603.html
Warren Buffett has said:
"I could end the U.S. deficit in five minutes. You just pass a law that says that any time thereโs a deficit of more than three percent of GDP, all sitting members of Congress are ineligible for re-election."
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nostr:npub1az9xj85cmxv8e9j9y80lvqp97crsqdu2fpu3srwthd99qfu9qsgstam8y8 gave me the push to finally try join market and then seconds later the dream dies as nostr:npub1qny3tkh0acurzla8x3zy4nhrjz5zd8l9sy9jys09umwng00manysew95gx says not to use it on the same start9 that has my nextcloud pictures