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The Detailed Description of Retailstore 1PCS Newest Arduino UNO R3 Development Board 2012 New Version + Free USB Cable Free and Fast ShippingFeatures

• 100% Brand New and High Quality;
• 2012 New Version Arduino UNO R3 Development Board;
• With more stable RESET circuit.
• An easy-to-use type open source controller.

List Price?: $23.99

Product Description

Technical Information

Customer Reviews

Product Description
New Version Board Advantage:
Arduino UNO R3 is an easy-to-use type open source controller which was newly introduced in 2012.
On the hardware, there is no big change compared with Arduino UNO. The biggest difference lies in the part of USB converting to serial port circuit.
The replacement is ATMega16U2 chip, so the cost may increase a little. The software is the same as before, no big change.

Function:
1. Pin Change:
Two I2C pins are added on the side of pin AREF (SDA and SCL, just the copy of Analog 4and 5, not an additional I2C interface).
In addition, add 2 pins alongside the RESET, one is IOREF, which can make the expansion board adapt to board voltage. This pin is to tell expansion
board the present onboard voltage (for example, when UNO is 5V, which can be seen as a copy of the power supply pin, does not provide a level pull-up) ;the other is an occupy pin to be used later.

2. More stable RESET circuit. The position of RESET key was also changed, moved to board corner near theUSB interface, which is more convenient to press.

3. 8U2 was replaced by ATmega16U2. This does not mean that there is R3 with 16K flash let your code run fast, this update is for USB interface chip. In theory, it let UNO can simulate USB HID such as MIDI/Joystick/Keyboard.

Specification:
* Operating Voltage : 5V
* Input Voltage(recommended): 7-12V
* Input Voltage(Limits): 6-20V
* Digital I/O Pins: 14(of which 6 provide PWM output)
* Analog Input Pins: 6
* DC Current per I/O Pin : 40 Ma
* DC Current for 3.3V Pin : 150mA
* Flash Memory: 32KB(ATmega328) of which 0.5KB used by bootloader
* SRAM: 2KB(ATmega328)
* EEPROM: 1KB(ATmega328)
* Clock Speed: 16MHz

Package: 1pcs Arduino UNO R3 Development Board+1pcs USB Cable

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