There are pin mappings to Atmega8 and Atmega 168/328 as well. See the graphic below for a (dare I say) mega-map of the Mega’s pins. In the meantime, it has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 channel. In fact, its use method is as same as the official mega board, in addition to the different volume. I am about to have dinner, so instead of typing out the entire response, I copied my comment on another thread on the same topic. VIN: Input pin for external power supply with a voltage range from 7 to 12 volts. Below is the pin mapping for the Atmega2560. To tackle this issue, we roll out the Keyestudio MEGA 2560 PRO development board. For example pin 10 on the uno can either be used as digital or PWM, whereas pin 10 on the Micro Pro can function as analog, digital or PWM. Many pins of the arduino are capable of more than one of those functions, you can check this by looking up "arduino pinout" for your particular board. The digital input/output pins are 54 where 15 of these pins will supply PWM o/p. The input voltage will range from 6volts to 20volts. The recommended Input Voltage will range from 7volts to 12volts. The operating voltage of this microcontroller is 5volts. The board accommodates the ATmega2560 microcontroller, which operates at a frequency of 16 MHz. The specifications of Arduino Mega include the following. Also can be used to switch on and off another fast component, like a transistor, which in turn will switch on and off a load (say a motor) and thus you can control the rotation speed of said motor. SKU: A000067 Arduino Mega 2560 is an exemplary development board dedicated for building extensive applications as compared to other maker boards by Arduino. This is useful for controlling a varying output, say the brightness of an LED, the position of a servo motor (this is a deeper subject, because the servo motor has a little "brain" of its own, which translates the incomming PWM into angle of rotation). The Arduino Mega 2560 is a microcontroller board based on the ATmega2560. It's a clever technique called "pulse width modulation", where the microcontroller will turn the output ON for a set period of time (duty cycle) and then turn it off for some time. It's not REALLY a smooth transition and it's not exactly a varying voltage, but rather varying on/off period by quickly switching the output on and off. PWM pins are capable of WRITING a voltage between 0V and +5V. This is useful when you want to measure brightness LEVEL (not just light on or off), or read a potentiometer value (for controlling the brightness of an LED for instance) and other similar purposes. You decide whether they read or write when you declare pinMode() Īnalog pins are capable of READING (this is key) a voltage between 0V and +5V (which is translated into a value between 0 and 255 when you use analogRead() function). Long answer - yes, but check pinout diagram for your boardĮssentially the arduino has 3 types of pins (there are more, but for the sake of this thread we'll say 3).ĭigital pins are capable of reading or writing either ON or OFF (let's say 1 or 0, HIGH or LOW, voltage +5V or 0V).
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