Search found 5 matches

by boxhi
29 Apr 2020, 13:12
Forum: ESP Easy: General Discussion
Topic: INA219 Calibrate external shunt
Replies: 18
Views: 15453

Re: INA219 Calibrate external shunt

Hello friends

yesterday I connected it like this
Screenshot_16.png
Screenshot_16.png (118.31 KiB) Viewed 15322 times
now like this
Screenshot_17.png
Screenshot_17.png (114.31 KiB) Viewed 15322 times
Screenshot_18.png
Screenshot_18.png (12.56 KiB) Viewed 15322 times
the current field reacts like yesterday 0.0000 A
if i add or subtract it sets a fixed value (without sensor data)
if I multiply or differentiate I get 0.00000
by boxhi
28 Apr 2020, 21:23
Forum: ESP Easy: General Discussion
Topic: INA219 Calibrate external shunt
Replies: 18
Views: 15453

Re: INA219 Calibrate external shunt

i test without shunt the formula field works. Can shift the decimal places, for example.

with shunt I always get 0,00000
can it be that the plugin does not count with 4 digits behind the decimal point?
by boxhi
28 Apr 2020, 20:04
Forum: ESP Easy: General Discussion
Topic: INA219 Calibrate external shunt
Replies: 18
Views: 15453

Re: INA219 Calibrate external shunt

Thank you very much TD-er for your explanation.

I was able to calibrate the voltage across the formula field
The current field doesn't seem to work. Or I'm doing something wrong no matter what I enter the value goes to 0,000
by boxhi
28 Apr 2020, 12:46
Forum: ESP Easy: General Discussion
Topic: INA219 Calibrate external shunt
Replies: 18
Views: 15453

Re: INA219 Calibrate external shunt

many thanks ThomasB I have already read this posts. in my version (mega-20200410) i can also do that set measuring range. Screenshot_14.png it is possible to calibrate the resistance with my version EspEasy ? or do I have to use a sketch? how do i do it or can i do it with a formula? (https://www.le...
by boxhi
27 Apr 2020, 20:44
Forum: ESP Easy: General Discussion
Topic: INA219 Calibrate external shunt
Replies: 18
Views: 15453

INA219 Calibrate external shunt

Hello everybody I am brand new here in the forum. And find Espeasy a nice thing. Unfortunately, I do not have to find any understandable solution to include a certain shunt over the INA219 in order to measure larger loads. Unfortunately I haven't quite got that with the calibration of the new resist...