Arduino Pro Mini Atmega328p Of 3.3v/8MHz Blue (compatible)

Pro Mini 3.3v/8MHz Blue
ID: #99189394 In stock, 39pcs
37.00 AED
This Arduino Pro Mini is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 Analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. A six-pin header provides the connection to a TTL to USB converter allowing programming the Arduino Mini Pro using a computer.
The Pro Mini runs at 3.3V and 8MHz.
it needs a Serial converter that supports Auto rest (DTR)

Microcontroller:- ATmega328P
Operating Voltage:- 3.3V (depending on model)
Input Voltage:- 3.3 - 12 V ( If use 3.3V, input 3.3V to Vcc, if used above 5V, input to RAW pin)
Digital I/O Pins: *14 Digital pins label as RXI, TXO, 2 to 13: (of which 6 provide PWM output, which is pin 3, 5, 6, 9, 10, and 11)
*8 Analog Input Pin: (label as A0, A1, A2, A3 and A4, A5, A6, A7)
DC Current per I/O Pin allowed 40 mA, but the max total allowed 150mA for the sum of all pins.
Flash Memory 32KB
SRAM:- 2 KByte
Clock Speed:- 8MHz 

Input / Output Pins: Each of the 14 digital pins on the Pro Mini can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. They operate at 3.3v. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms. In addition, some pins have specialized functions:

Serial: 0 (RX) and 1 (TX). Used to receive (RX) and transmit (TX) TTL serial data. These pins are connected to the TX-0 and RX-1 pins of the six-pin header.
External Interrupts 2 and 3. These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details.

PWM: 3, 5, 6, 9, 10, and 11. Provide 8-bit PWM output with the analogWrite() function.

SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK). These pins support SPI communication, which, although provided by the underlying hardware, is not currently included in the Arduino language.

LED: 13. There is a built-in LED connected to digital pin 13. When the pin is HIGH value, the LED is on, when the pin is LOW, it's off.
The Pro Mini has 8 analog inputs, label as A0, A1, A2, A3, A4, A5, A6, and A7, each of which provides 10 bits of resolution (i.e. 1024 different values). 
I2C: A4 (SDA) and A5 (SCL). Support I2C (TWI) communication using the Wire library.

Reset Pin:- Bring this line LOW to reset the microcontroller. Typically used to add a reset button to shields which block the one on the board.

Communication: The Arduino Pro Mini provides UART TTL serial communication, which is available on digital pins 0 (RX) and 1 (TX). The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the Arduino board via a USB connection.
A SoftwareSerial library allows for serial communication on any of the Pro Mini's digital pins.
The Arduino Pro Mini also supports I2C (TWI) and SPI communication. The Arduino software includes a Wire library to simplify the use of the I2C bus.
Programming: The Arduino Pro Mini can be programmed with the Arduino software through a USB to TTL serial converter connected to the Arduino Pro Mini 6 header pin side. Only 5 lines need to be connected because the GND pin repeated.
This Arduino Pro Mini 6 header pin side for programming has the following pin label:-
DTR (labeled on the reverse side of the board)
GND (Another repeated GND pin, labeled on the reverse side of the board)
Connection for programming with a CP2104 USB TTL serial Converter is as following:-
CP2104 <------>Pro Mini
Total 5 line connection.
Pro Mini side another GND pin no need to connect. (there are two GND pin, connected one is enough)