Use case: Convert cumulative meter reading (e.g. for heat/energy (kWh) or water (l)) into daily / hourly consumptions (W or l/h)

In case this is still relevant: As part of my „firedrill“ (SD card fails and I have to install everything forms scratch) I cleaned up my protocol and also published it here.“ as a step-by-step. Maybe you find this useful to do the step.