Gather voltage with ADC of STC microcontroller

In addition to the usual microcontroller-grade ADC, many analog-to-digital convertors are available for use in a variety of industrial and commercial applications. In this article, we'll focus on the use of simple, single-chip microcontrollers such as the STC ADC for the purpose of measuring voltage.

For the beginner or hobbyist, understanding the basics of microcontroller-grade ADC can be a little intimidating. Yet, while they may seem complicated, they are actually quite simple once you get the hang of them. To get started, let's talk about the basic principles behind the operation of an ADC.

At the most basic level, an ADC takes an analog voltage and translates it into a digital form. This digital representation can then be read by a computer. The way in which an ADC works is by converting an analog voltage into a digital code. This is accomplished through a process known as "quantization". In this process, the analog voltage is divided into discrete steps or ranges, each represented by a code. In this way, the analog voltage is translated into a number that is then readable by the computer.

Now that we've covered the basics of how an ADC works, let's discuss how to measure voltage using the STC ADC. The STC ADC includes a variety of features, including programmable gain control, which allows the user to control the input voltage range. Additionally, the STC ADC also includes a 10-bit resolution for precise voltage measurements. Finally, the STC ADC also includes a built-in filter, which helps ensure accurate readings.

In order to measure voltage accurately, the user will need to first set up the appropriate input range and gain control settings on the STC ADC. Once these settings are configured, the user should connect the voltage input to the ADC. The voltage should be connected to the ADC using a shielded cable, as stray noise from other components or devices can cause false readings. The user should then apply the voltage to the ADC, and the ADC should output a digital representation of the voltage.

In order to further ensure the accuracy of the voltage readings, the user should also set up a filter. A filter is a device that helps limit the amount of noise that can enter the ADC. The filter will also help prevent any noise from being recorded as part of the voltage measurement. The filter should be connected to the ADC prior to the voltage input.

Once the filter and the appropriate setting s are configured, the voltage measurement can be taken. The user should check the accuracy of the voltage reading by measuring the output voltage of the ADC. The voltage should be accurate to within a few percent of the input voltage. If the voltage readings are too far off, the user should adjust the gain settings or the filter settings until the voltage reading is accurate.

In conclusion, measuring voltage using the STC ADC is a straightforward process. By first configuring the gain control and input range settings, connecting a shielded cable between the voltage input and the ADC, and finally setting up a filter to further ensure accuracy, the user can accurately measure voltage using the STC ADC.