Q: What is the input range of the ADC? What is the educational value of the kits you presented.
A: The input range has a maximum of the supply voltage of the microcontroller. An MCU with a +3.3-volt power source cannot accept a voltage over 3.3 volts on any input, although MCU manufacturers include a bit of tolerance. The ADC range depends on the reference voltage, so read the data sheet for the MCU you plan to use. For a 2.500-volt reference, for example, you can digitize a signal between 0 and 2.500 volts. Some MCUs have an internal reference you can select, or you supply an external reference.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.