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Questions tagged [analogreadresolution]

From [Arduino - AnalogReadResolution][2]: > `analogReadResolution()` is an extension of the Analog API for the > Arduino Due and Zero.

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How would I go about measuring an analog signal on my arduino mega that has both positive and negative voltages

I have a signal that fluctuates between -70mV and 50mV. How would I get the arduino to read this.. Ultimately I am trying to graph the data in real time so it looks like this. https://imgur.com/a/...
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Lowest voltage applicable on AREF pin on Uno and Mega

I need to measure an Analog signal in the range of 5-30 mV. Naturally, using the internal default 5V reference leads to very poor measurement resolution. I would like to use the capability to use an ...
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How can I seriously calibrate ADC voltage readings with Arduino Nano?

I have been using Arduino Nano Analog input to measure voltages, in the range between 22-30 Volts. I want to measure it down to a tenth of a volt. Following the instructions found here: Read ...
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Cheapest and easiest Arduino board for 12 bit ADC, thinking of M0

I need an Arduino board for simple ADC, but 10 bits of resolution is sadly not enough. I am going to buy a board with 12 bits of resolution, but really couldnt decide on the exact model. It needs to ...
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Can i supply the AREF pin with an Analog pin from the same board?

I guess its a dumb question but couldnt find anything about it online. I know its possible to supply the AREF pin with 3.3 V to increase the ADC resolution. For the project i am working on the ...
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How to interpret analog values sent to Arduino from line scanner?

So I have a line scan camera attached to my Arduino Mega and I'm trying to send it a digital clock impulse and get an analog output back. The line scan camera is supposed to return 128 pixels. So far ...
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Can I use analogReadResolution() on an Uno or Leonardo?

I am trying to get a spectrum analyser up and running. I found the following code on Galileo GEN2 Project - Real-Time Audio Spectrum Analyzer1: /* * * Galileo GEN2 Project - Real-Time Audio ...