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+--- Forum: KC868-A16 (https://www.kincony.com/forum/forumdisplay.php?fid=25)
+--- Thread: ADC input 3&4 max range (/showthread.php?tid=2836)
ADC input 3&4 max range - ia1 - 04-30-2023
Hi dear
Can you confirm me please what is max input voltage range for full scale output for ADC 3 & ADC 4 of KC868-A16
Because For me its going to full scale on 3.3volts.
Thanks
Imran Alam
RE: ADC input 3&4 max range - admin - 04-30-2023
it according to your wire quality. this not easy to say, you need to test.
RE: ADC input 3&4 max range - ia1 - 04-30-2023
I have calibrator for volt output, I am testing with that by directly applying 0 to 3.3v gradually increasing by key input to calibrator.
its looking strange that was the reason i am asking, there is no cabling involved in my case by the way.
RE: ADC input 3&4 max range - admin - 04-30-2023
" there is no cabling involved in my case by the way." what's your means?
RE: ADC input 3&4 max range - ia1 - 04-30-2023
Just applied calibrator probe on ADC 3 or ADC 4 and GND to see the results
RE: ADC input 3&4 max range - admin - 04-30-2023
can you take a video of your problem.
RE: ADC input 3&4 max range - milan.zelenka - 10-29-2024
Hello,
Any solution for this issue? I have the same problem with esphome, ADC input of my A16 board (on all channel) shows right voltage up to 3.145V, no more.
It works perfect in range 0 - 3.145V, it shows right value. Above 3.14V it shows still 3.14V.
I used very simple code:
sensor:
- platform: adc
pin: 39
name: "A4 Voltage"
update_interval: 1s
unit_of_measurement: V
attenuation: 11db
I think it depends on attenuation value. With attenuation: 0, it works only up to 1.1V. According to documentation, attenuation can be set to this values: 0db, 2.5db, 6db, 11db, 12db, auto, but nothing works correctly in range 0-5V.
Thanks for any observations.
M.
RE: ADC input 3&4 max range - admin - 10-29-2024
you can check this video tour of analog config: https://www.kincony.com/forum/showthread.php?tid=3499