In order to get the exact value of Arduino’s sampling rate, we need to know the details. Without going into much details, the analogRead() function takes 100 miliseconds leading to a theoretical sampling rate of 9600 Hz (9600 samples each second). But actually that theorm does not relevant anymore and the standard is increased upto 10x of the highest frequency of measured signal.Īrduino itself provides a convenient way to read analog input using analogRead() function. Based on the Nyquist sampling theorm, the minimum sampling rate is twice of the highest frequency of measured signal. This is the case when I try to acquire sinusoidal signal with frequency ~7000 Hz. Sampling Rateīut sometimes, in situation where ‘ordinary’ built-in function by Arduino UNO does not solve the problem we face, we need to understand deeper about the architecture of the Arduino UNO’s IC, ATmega328P. Those tutorials give you the best-practices of using Arduino UNO that will solve our daily problems. There are tons of tutorials about it, you could browse on hackster.io, hackaday, or even on the official site of arduino.
Most embedded system / electronics hobbyist used Arduino UNO for simple task like LED manipulation, analog read from sensor, serial print, and many more. In this post I will try to ‘overclock’ Arduino UNO since it’s the most popular on its class. The other categories are internet of things, education, wearable, and 3D printing. If we want to try something powerful with more pins and storage memory, then Arduino MEGA might be meet our needs. On the entry level, Arduino UNO probably the most popular type among the users. This microcontroller actually has different types based on the specifications and user-level. Arduino comes with a bunch of features that very easy to use.
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