Search found 3 matches

by mitrus
12 Dec 2018, 12:17
Forum: ESP Easy: Projects / Applications
Topic: Calculating kWh from Amps+Volts
Replies: 10
Views: 4466

Re: Calculating kWh from Amps+Volts

@grovkillen it's good to know that project is working around this. Thanks to all for ideas, propably my solution will be this time own application for ESP where I'll read 60 times current value and process this to kwh then sond once minute portion to database. My question wa only that maybe this kin...
by mitrus
11 Dec 2018, 17:21
Forum: ESP Easy: Projects / Applications
Topic: Calculating kWh from Amps+Volts
Replies: 10
Views: 4466

Re: Calculating kWh from Amps+Volts

The problem is that consumption can take only 30 sec i.e. or sometimes 30min I'm using NETTEMP project. And to have nice plot and calculate this later it would be good to have 1s interval and I'm afraid this frequency will kill my SD card in RPi that's why I want that esp will sum this and then send...
by mitrus
11 Dec 2018, 15:19
Forum: ESP Easy: Projects / Applications
Topic: Calculating kWh from Amps+Volts
Replies: 10
Views: 4466

Calculating kWh from Amps+Volts

Hallo I have INA219 current measurement device connected to ESP Easy and I'm able to read current. Circuit works in 12V, currents are between 0A and 1A. Im able to sent current current value each 60s to my database. Is it possible that ESP Easy will measure current in each cycle and sum this to powe...