Arduino pro mini pinout, Specification, and programming.

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About Arduino pro mini

Arduino mini pro is the smallest Arduino model available in the market. Arduino pro pinout will be discussed in this post. We already discussed how to install Arduino IDE & How to upload the first code. Arduino mini pro pinout, specification, and programming will be discussed in this article.

This board is equally powerful as Arduino Uno, Mega, and nano. Arduino mini pro is the smallest and lightest bord. It is available in two variants Arduino pro mini 5v and Arduino pro mini 3.3v. here we are going to discuss Arduino pro mini pinout and other features.

arduino mini pro pinout

Specification

Arduino pro mini has two variants 5v and 3.3v. The Arduino pro mini dimensions are 33×17, 8. It does not have any USB connector. Do not have any FTDI programmer. It has a reset button. And onboard voltage regulator. Almost every pin has in build pullup and pulldown resistors. That can be initiate using the software.

USB ×
Reset Button
Voltage Regulator
FTDI programmer×
Power LED
Onboard LED

Micro-controller Specification

The micro-controller is used in Arduino pro mini 328 (Atmega 328p). It has 32KBytes Flash Memory, 1KBytes EEPROM, 2Kbytes internal RAM. It has 8Mhz clock Frequency in 3.3v variant and 16Mhz in 5v variant.

Flash Memory32KBytes
EEPROM1KBytes
Internal RAM2KBytes
3.3v Clock Frequency8Mhz
5v Clock Frequency16Mhz

Arduino pro mini pinout

Arduino pro mini has almost the same pins Arduino nano or UNO have. It has a total of 14 digital pins and 8 analog pins. It supports serial communication, SPI, and UART protocols. Pro mini Arduino pinout is very simple

arduino mini pro pinout
Power SourceVCC, GND and VINVCC:- 5v or 3.3v
GND:- GROUND
VIN:- unregulated supply upto 12v
ADCADC-0,1,2,3,4,5,6,7Analog input
PWMDP3, DP5, DP6, DP9, DP10, DP11These pins are can provide Pulse width modulation output.
ResetRESETReset the controller
InterruptsT0 and T1Theses two pins for external hardware interrupts.
Analog CompararorsAIN0 and AIN1These two pins are connected to internal comparator.
CommunicationUART
SPI
I2C
UART:- DP0-TX, DP1-RX
SPI:- SCK-DP13, MISO -DP12, MOSI-DP11, SS-DP10
I2C:- SCL-ADC5, SDA-ADC4
arduino mini pro datasheet
Arduino pro mini datasheet

Programming

After discussing Arduino pro mini pinout. The next question comes in mind is how to program Arduino pro mini. For doing that we need an FTDI programmer that uploads the code from computer to Arduino pro mini 328p IC. FTDI programmer is not on the Arduino mini pro. So, we need an external FTDI programmer and connect it with Arduino mini. The connection is very simple to follow the diagram or table.

FTDIArduino pro mini
GNDBLK
CTSGND
VCCVCC
TXRX
RXTX
DTRGND

After connection open your Arduino IDE Go to Board>>select Arduino Mini. Verify and upload the code. Also, select the correct port.

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