For fuel tank: - HC-SR04 was seeing the walls (too large beam), not adequate ......... @Barashur, I would suggest to try first one of Maxboxtix EZ4 sensor or maybe its copy GY-US42V2 from Aliexpress Thank you for suggestion. With HC-SR04 you are correct. After several days of testing I found out th...

@grovkillen Is your friend referring to this kind of application of basic physics? 'Devil in the details', but is simplicity itself and completely passive/contactless. Must be possible to realise as DIY with 2*(PVC-pipe+cap), 2*BME280 (or other pressure-sensor) and 1*ESP-with-solarcellPS. Depth of ...

Hello everybody, Im pretty new with ESP easy, in the past i have done few projects with arduino, now I wanted to test out D1 mini with ESP8266 since I want to do project over wifi and its pretty simple with ESP Easy. I dont have a vast knowledge on this topic, so I may have done some mistakes Im not...