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The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega8U2 programmed as a USB-to-serial converter. Revision 2 of the Uno board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.
"Uno" means one in Italian and is named to mark the upcoming release of Arduino 1.0. The Uno and version 1.0 will be the reference versions of Arduino, moving forward. The Uno is the latest in a series of USB Arduino boards, and the reference model for the Arduino platform; for a comparison with previous versions, see the index of Arduino boards.
|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||50 mA|
|Flash Memory||32 KB (ATmega328) of which 0.5 KB used by bootloader|
|SRAM||2 KB (ATmega328)|
|EEPROM||1 KB (ATmega328)|
Schematic & Reference Design
EAGLE files: arduino-uno-reference-design.zip
- not difficult to useReview by larad
Quality Price Value
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Prices and Rates
1.SainSmart provides two delivery methods from which to choose:
(1)STANDARD SHIPPING (Free to United States, United Kindom, Canada, Australia, Germany, France, Spain, $5 to other countries. While for Remote Area, the shipping will be calculated based on Weight VS Destination.)
(2)EXPEDITED SHIPPING (It's based on weight VS destination. You can get the express shipping rate at checkout page. Order(s) over $100 will be upgraded to express shipping as a special accommodation.)
Note: Import duties, taxes and charges are not included in the item price or shipping charges. Please find out as much as you can about import taxes in your own country before purchasing an item. In special cases, you may need to pay import duties on certain goods. We will endeavor to assist and cover in cases where duty is charged, if you are charged customs then please collect the package, pay any fees due and then contact us and we will reimburse half with you. For any assistant on this, you may kindly contact us. We promise to do our best for you.
Delivery & Tracking
Depending on your location and the type of goods you have purchased, SainSmart.com will dispatch your items via 1 from 5 carriers. Items will be shipped from our main warehouse in China. If you prefer to have it shipped from other warehouse, please contact us via firstname.lastname@example.org
1. STANDARD SHIPPING: China Post/EUB
China Post is economic airmail reaching most part of the world, which generally takes about approximately 20 business days to arrive. And this will reduce the risk charging by local custom.
The delivery status of a package can be checked via the Internet at http://intmail.11185.cn/itemstatus_en.jsp (for tracking numbers beginning with “RA”)
EUB is also known as E-packet, which is especially for delivery to USA. It takes about 10-12 days to arrive. The delivery status of a package can be checked via the Internet at https://tools.usps.com/go/TrackConfirmAction_input (for tracking numbers beginning with “LN”)
2. Express Shipping: DHL/UPS/EMS
DHL/UPS: We ship the item(s) by DHL / UPS from our warehouses in China. Your item(s) will normally be sent out within 1-2 business days and it takes approximately 3-5 business days to arrive depending on the destination.
EMS: For some countries where UPS/DHL will not deliver, we will ship the item(s) via EMS, reaching you 8-15 days. Countries list for EMS shipping: Brazil, Russia, India, Turkey, Mexico, South Africa, Argentina, Saudi Arabia, Hungary, Romania, Israel, Philippines, Slovakia, Greece, South Korea.
The delivery status of a package can be checked via the Internet at http://www.ems.com.cn/english.html (for tracking numbers beginning with “EE”)