How Much Does The I2C Adc Increase The Accuracy - SeeedStudio Grove-I2C ADC Manual

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How much does the I2C ADC increase the accuracy?

Here is an experiment we make to give you a sense about how much the I2C ADC increase the accuracy of
an analog sensor. First, let's check the values collected directly through analog port on Arduino/Seeeduino
from a Grove - Gas Sensor (MQ5).
We upload the code below to get the data.
/*
* Grove - Gas Sensor(MQ5)
*
* The Gas Sensor detect the related Gas density,
* Arduino get the result by analogread. the gas Density is
* 0~1, larger the output is, the denser the gas.
* Connect the Sensor to A0 in this demo;
*
* By: http://www.seeedstudio.com
*/
#define Vref 4.95
void setup() {
Floating
L
H
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