Arduino UNO R3 Control Board

Arduino UNO R3 Control Board, includes two options. Option one: one single Arduino UNO board with a 19.68in USB cable and an installation instrution. Option two: an Arduino UNO control board with an IO V2 expansion board, with a 19.68in USB cable and an installation instrution. 

The Arduino UNO can be powered by the USB cable or external power source. External power cab be an AD-CD adapter or a battery. The daapter can be connected by inserting a positive plug with a center of 2.1mm into the power socket. The lead wire of the battery can be connected to the DND or VIN pins of the power adapter. The circuit board can be powered by 6-20V external powe supply. 

All 14 pins on Arduino UNO can be used as inputs and outputs. Their working voltage is DC5V. Four fixed holes can make the circuit board adhere well. 

Arduino UNO has a self-reset fuse to protect USB port from short circuit and overload current damage, if the current of the USB inerface exceeds 500ma, teh fuse will be cut off automatically until this dangerous situation is over. 

It can control WS2812 and SK6812 programmable led strip lights. 

Technical parameters

Micro controller: ATmega328

Working voltage: DC5V

Output voltage: 5VDC or 3.3VDC

Digital I/O pin: 14 (Six of them provide PWM output)

Flash memory: 32KB (ATmega328), The boot loader occupies 0.5KB

Clock speed: 16MHz

SRAM: 2KB (ATmega328)

EEPROM: 1KB (ATmega328)

Current per I/O pin: 40mA

Analog input: 6

The 3.3V pin output: 50mA

Input voltage: No external power supply is required when connecting to USB or external 7-12VDC input