Dfrobot Firebeetle 2 ESP32 C6: https://www.dfrobot.com/product-2771.html?tracking=CH2ahHLno922IMb3XFammUzJDnc1pryXEVmuVTHKYGav95g0jDeqjLk90uqz3qqL Ultrasonic ...
This GitHub repository provides updated designs for a low-cost, open-source, cell-equipped water level sensor. The initial design, published in the journal Oceanography in the special section DIY ...
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