Sorry for the late respond, just seen your question today.
Attached is my LibreOffice Calc-sheet I hope you can use it.
[Answered] What are the ADC input ranges?
Re: [Answered] What are the ADC input ranges?
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Re: [Question] What are the ADC input ranges?
I am a newbie - How to read analog using arduino IDE ?
Re: [Answered] What are the ADC input ranges?
I purchased a NodeMCU ESP32-S to bring in some 0-10v analog inputs. I've converted them down to 0-3.3v but I've found the same issues as in this thread. Below about 0.2v there is nothing, above 3.1v same thing. Between 2.9 - 3.1 I get a lot of noise and bouncing even though the voltage coming in is stable. But beside all that I cannot get a linear line using 12-bit resolution. Has any progress been made on this?
Re: [Answered] What are the ADC input ranges?
In case anyone following this is interested I did lots of testing:
https://esp32.com/viewtopic.php?f=19&t= ... 739#p13739
https://esp32.com/viewtopic.php?f=19&t= ... 739#p13739
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Re: [Answered] What are the ADC input ranges?
Hello,
ESP32 has 12bit of ADC as per datasheet. so it can measure the change of 12mV on ADC line
I am trying to read 65mV on ADC lines.but it still gives 0.
what is the minimum ADC input voltage range on ADC line of ESP32.
ESP32 has 12bit of ADC as per datasheet. so it can measure the change of 12mV on ADC line
I am trying to read 65mV on ADC lines.but it still gives 0.
what is the minimum ADC input voltage range on ADC line of ESP32.
Re: [Answered] What are the ADC input ranges?
See the post I made right above yours. Its around 100 mv.ParthRathod wrote:Hello,
ESP32 has 12bit of ADC as per datasheet. so it can measure the change of 12mV on ADC line
I am trying to read 65mV on ADC lines.but it still gives 0.
what is the minimum ADC input voltage range on ADC line of ESP32.
Re: [Answered] What are the ADC input ranges?
What happens if I set a voltage higher than the attenuation setting indicates? For example putting 3v with 0dB (1.1v) will burn the adc?
Re: [Answered] What are the ADC input ranges?
No, as long as you don't go past the maximum of about 3.3 it will simply read max value above 1.1.
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