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What does analogReference internal do?
analogReference() Configures the reference voltage used for analog input (i.e. the value used as the top of the input range). The options are: Arduino AVR Boards (Uno, Mega, Leonardo, etc.)
What is analog reference?
It is the reference voltage against which all other analog voltages (analog inputs) are measured against. By default it is the same as the chip supply voltage (5V on most Arduino boards), so the analog inputs can measure between 0 and 5V.
What is VREF in Arduino?
VREF normally means Voltage REFerence. Such pins are usually associated with ADCs (Analog to Digital Converters). For example a 3.3 volt microprocessor may have a VREF pin fed by 2 volts. The 10 bit ADC inside the microprocessor sees this as the upper limit.
What is Aref?
AREF means Analog REFerence. It allows us to feed the Arduino a reference voltage from an external power supply in order to configure the reference voltage used for analog input (i.e. the value used as the top of the input range).
What is meant by reference voltage?
A voltage reference is an electronic component or circuit that produces a constant DC (direct-current) output voltage regardless of variations in external conditions such as temperature, barometric pressure, humidity, current demand, or the passage of time.
What is an internal citation example?
MLA in-text citation style uses the author’s last name and the page number from which the quotation or paraphrase is taken, for example: (Smith 163). If the source does not use page numbers, do not include a number in the parenthetical citation: (Smith).
What does internal reference mean?
An internal reference is when someone working at a given company recommends another person for an open position at that company. An internal reference carries a different weight than other types of references because someone who is already acquainted with a company has more of a sway in the decision-making process.
Which IC is used in Arduino Uno?
Arduino Uno is a popular microcontroller development board based on 8-bit ATmega328P microcontroller. Along with ATmega328P MCU IC, it consists other components such as crystal oscillator, serial communication, voltage regulator, etc. to support the microcontroller.
What is IORef in Arduino Uno?
IOREF: This pin on the Arduino/Genuino board provides the voltage reference with which the microcontroller operates. A properly configured shield can read the IOREF pin voltage and select the appropriate power source, or enable voltage translators on the outputs to work with the 5V or 3.3V.