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Arduino Uno R3 Microcontroller A000066
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- Microcontroller board based on the ATmega328 (datasheet)
- 14 digital input/output pins
- 16 MHz crystal oscillator
- USB connection
- Made In Italy
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This is a genuine new Arduino Uno R3. The Arduino Uno is a microcontroller board based on the ATmega328. 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 an AC-to-DC adapter or battery to get started. Note From Arduino Founder Massimo Banzi We stress the fact that [genuine Ardunio board from mp3Car.com] are made in Italy because in this globalized world, were getting the lowest possible price for products sometimes translates into poor pay and working conditions for the people who make them, at least you know that who made your board was reasonably paid and worked in a safe environment. (This obviously applies only to the boards marked "made in Italy", we cannot attest to the manufacturing process of "third party" boards). The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 (Atmega8U2 up to version R2) 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. Revision 3 of the board has the following new features: 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible both with the board that use the AVR, which operate with 5V and with the Arduino Due that operate with 3.3V. The second one is a not connected pin that is reserved for future purposes. This is the org version of this product, not the CC.
Top customer reviews
Keep in mind that if your project is complex and you need more pins, you can use the nice I2c bus that this UNO has available and you can connect Slave devices to expand the "pin-age". :-) I am going to add a AdaFruit Trinket Pro (powered from this UNO 5v bus) and let these two guys talk to each other over I2c; exchange info, and I get tons more PWMs and digital pins too. The cool thing is that the Trinket fits right on the back of this UNO's added shield. SWEET !!
As usual, these are great. Notice that this is the R3 -- exactly what you want. I've written some great control software for controlling the RF oscillator in radio transmitters and this made the project a success. I added a stacking shield (Gikfun Prototype) for the additional hardware I needed and this UNO allows the flexibility of updating my own sketches if a new feature in my RF unit is warranted.
In my first year of electronics engineering school, I learned how to insert socketed chips. I broke a few and screwed up a few times, but after the first few weeks I was pretty good at it.
Also, there is no place to put the little rubber feet that come with it. They're too wide to fit between the various pins on the bottom of the board
BAD: The soldering workmanship is very disappointing; the worst I've ever seen in a production job. SMT devices on the top seem to be mounted OK, but the bottom of the board had numerous defects in the (wave?) soldering. Two of these joints appear to have been manually touched up (residual flux present). Several other joints had large gaps in cold solder joints, but were apparently not bad enough to warrant manual repair. I hope the Italian manufacturer (SMART PROJECTS) works out these process kinks soon.
*** UPDATE July 2012 *** My subsequent purchase of an UNO-R3 board indicates that the soldering issues in early production boards have been solved. (FYI, CanaKit is an approved distributor for Arduino.)
The Arduino concept is terrific, and has enabled a LOT of people to easily create smart projects. The C compiler and IDE work well; I've never had an easier time writing an embedded application, and the price can't be beat. The only thing lacking is the ability to debug code via single-step.