What does ioref mean on an Arduino Uno?

What does ioref mean on an Arduino Uno?

IOREF: This is a voltage corresponding to the i/o of that board, for example an Uno would supply 5v to this pin, but a Due would supply 3.3v. Sending a signal to this pin does nothing.

How is the Aref used in an Arduino?

This is the voltage reference analog-to-digital converter (ADC). It can be used instead of the standard 5V reference for the top end of the analog spectrum – for example, if you wanted to use the ADC to monitor a signal that had a 0-1.5 volt range you could get the full scale of the ADC by connect AREF to a 1.5V signal.

What kind of microcontroller is the Arduino Mega?

The Arduino Mega is an open-source development board that is developed by the Arduino company. It is based on the Microchip ATmega2560P by Atmel. The Atmega3560P is an 8-bit microcontroller that comes with a built-in bootloader, which makes it very convenient to flash the board with our code.

What kind of voltage does an Arduino Uno supply?

This is a voltage corresponding to the i/o of that board, for example an Uno would supply 5v to this pin, but a Due would supply 3.3v. Sending a signal to this pin does nothing. This pin is unused, but is there to ensure compatibility with future products.

How to mutate the contents of an ioref?

Mutate the contents of an IORef. Be warned that modifyIORef does not apply the function strictly. This means if the program calls modifyIORef many times, but seldom uses the value, thunks will pile up in memory resulting in a space leak.

What is the meaning of the F distribution?

In probability theory and statistics, the F-distribution, also known as Snedecor’s F distribution or the Fisher–Snedecor distribution (after Ronald Fisher and George W. Snedecor) is a continuous probability distribution that arises frequently as the null distribution of a test statistic,…

What is the purpose of atomicmodifyioref in ioref?

Atomically modifies the contents of an IORef. This function is useful for using IORef in a safe way in a multithreaded program. If you only have one IORef, then using atomicModifyIORef to access and modify it will prevent race conditions.