#ARDUINO PRO MINI SERIAL#
The Serial Clock is initiated by the master device. It is used to adjust the shift of data between the two devices.
It is defined as the line that transmits the clock data. The I2C uses two lines to send and transmit data: a serial clock pin uses (SCL) and a serial data (SDA) (SDA) pin. It is the two-wire serial communication protocol. These digital pins can be configured as an input or output using the pinMode (), digitalWrite (), and digitalRead () functions. This kind of input/output is usually called digital (or binary) and these states are referred to as HIGH or 1 and LOW or 0. The Arduino digital pins can read/output only two states: when there is a voltage signal and when there is no signal. GND: There are three GND (Ground) pins present on the Arduino Pro Mini board. We can change the voltage supplied voltage to 5V depending on the versions of the board. VCC: It is the regulated voltage of 3.3V. The supplied voltage at this pin can range anywhere between 3.4 to 12V. RAW : RAW is the unregulated input voltage that is supplied to the regulator. This button generates a low-level signal at the pin which is used to reboot the microcontroller. It consists of 32 KB of flash memory for storing the program code (0.5 KB is used for storing the bootloader), 2 Kbytes of SRAM, and 1 Kbytes of EEPROM. The ATmega328 microcontroller is a high-speed, power-efficient AVR 8-bit microcontroller. Note: Older version of the Pro Mini had the following specs that are different from the latest version:Īre you a beginner? Can't decide which book to read? Check out this article on Best Arduino Books for beginners Arduino Pro Mini Pinout details: ATmega328 microchip: Given below are the technical specs of Arduino Pro Mini: Microcontrollerĥ – 12 V (5V model) and 3.3 – 12 V(3.3V model)
Image Source: Arduino Website Specifications of Arduino Pro Mini:
NOTE: the ground on the left has moved down one pin.
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