Capacitive load cells use capacitance to store and measure an electrical charge between two plates. Distance between the plates changes with applied load, indicating the weight.

This means that using a reliable sensor like a load cell to measure weight rather than an unreliable one like a soil moisture sensor will result in more reliable data he can use to automate his ...

It’s also much simpler, using a peristaltic pump for serving a single liquid from a large bottle into a glass, and using a load cell to know when to stop filling.