analog input resolution 30%erro

[jltluc57]

Hello

Can you tell me the resolution on the analog inputs.
Because for 1.5v in I visualize 2.01v which is 30% error..
That's a lot

Board A16

[admin]

you can check with this video , how to config analog by esphome:
https://www.kincony.com/forum/showthread.php?tid=3499

[jltluc57]

I watched the video, but I don't use Home Assistant.
And that doesn't solve the problem.

In any case if I put 1.5 volts on the analog input, in the Monitor part of the KC868_A16 card, I should see 1.5V and not 2.01Volts.
ADC is in the A16 card in any case the displayed value must be correct.

Whatever the system that will read the value, it must be correct at the source therefore KC868_A16.

You don't agree?

[admin]

click the right ico "gear" , take a photo, what you have set.

[jltluc57]

Hi,
Here

[admin]

the battery “-” have connected with board's power supply's GND?
do you want to monitor a battery voltage?

[jltluc57]

Yes the gnd is connected
Look at the photos of the posts

I test the capacities, reliability, etc of the card before buying others.
There I am on the analog inputs and I look at the reliability of the measurement, I send 1.5v I see that I have 2.01 volts so problem

there is a problem.

[admin]

after our new year holidays, we can test it.

[jltluc57]

See you soon for your return

[jltluc57]

Have you had time to watch?
More information about the error