KAmduino UNO V2

ATmega328P microcontroller from ATMEL
20 GPIO pins on connectors (including 6 lines with PWM mode)
Uploaded Arduino bootloader
MicroUSB-B connector for programming and data exchange
Possibility of power supply via DC-JACK socket (2.1x5.5) by voltage in range 7…15V
Protection against reverse voltage polarity on DC connector
Possibility of power via USB connector
Connectors compatible with Arduino UNO standard
On-board User LED and LEDs signalling transmission from/to computer
On-board User button
On-board microcontroller reset-button
USB connector protected against electrostatic discharge
Possibility of expanding the functionality by using additional shields
KAMAMI standard I2C connector for connecting additional modules
Mounting holes with a diameter of 3mm
Module dimensions: 69mm x 55mm x 14mm

Standard equipment

Code	Description
KAmduino UNO V2	Assembled and launched module

Electrical schematics

AVR ATmega328P microcontroller

Embedded AVR ATmega328P microcontroller from ATMEL allow for using a board in development application, in which is required large Flash memory (32kB), RAM (2kB) or a large number of PWM signals (6 channels). Microcontroller can be running with frequency up to 16MHz. Uploaded Arduino bootloader make possible programming via USB connector with using Arduino IDE.

Power supply

KAmduino UNO V2 board can be supply via both USB connector and external power supplier with connector 2.1x5.5. The board has embedded protection circuit against reverse voltage polarity, as well as overcurrent protection of USB connector (polymer fuse). Correct power supply of development board is signalled by PWR green LED.

USB communication

KAmdunio UNO board has embedded USB connector. Connector can be used to communication with computer and board programming. USB connector is protected against electrostatic discharges. Thanks to this, board is resistant to the appearance of accidental electrostatic discharge and after-effects. Transmission both from and to computer is signalized by two yellow RX and TX LEDs. Board is installed on the computer as Serial Port (COM), thanks to cooperate with Arduino IDE, as well as with each terminal. Using of CP2102 allow to reset of microcontroller from computer level in every moment.

Connector compatible with Arduino UNO

Board is equipped with female connectors compatible with Arduino UNO standard. Thanks to this, it is possible to using additional modules (shields). On connectors, except all I/O microcontroller pins, are available power supply 5V and 3.3V, as well as RESET signal (connected parallel with button) and reference voltage of ADC converter.

ISP connector

KAmduino UNO V2 board has also connector for programming of ATmega328P microcontroller via ISP interface. By using programmer with ISP interface, microcontroller can be programmed without Arduino bootloader (bootloader will be deleted!).

I2C bus connector

KAmduino UNO V2 is equipped with a KAMAMI I2C connector enabling the connection of external systems operating on the I2c bus. The SDA (PC4/A4) and SCL (PC5/A5) lines are not pulled up to the supply voltage, the pull-up resistors must be connected externally.

User LED

On KAmduino UNO V2 board is placed user LED (marked as "13"). It is controlled with MOSFET transistor with N-channel, connected to PB7 pin of microcontroller (output 13). Thanks of using the transistor, line is not loaded. It can be still using externally.