SparkFun will be closing early at 3:30 Friday 5/27 and remain closed Monday for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).
This product has been retired from our catalog and is no longer for sale. This page is made available for those looking for datasheets and the simply curious.
Description: Replacement: None. This is an unsupported version of the Arduino Pro. Arduino does not support 20mhz.
It’s blue! It’s skinny! It’s the Arduino Pro! SparkFun’s minimal design approach to Arduino. This is a 5V Arduino running the 20MHz bootloader.The power switch was moved to the side of the board (good idea Limor!) to allow control when a shield is attached.
Please note: The right-angle power switch is fragile. We’re working on making the switch stronger. For now, please be gentle.
This is a 20MHz board. This will get you maximum speed out of the ATmega328, but the current version of Arduino does not support the ATmega328 running at 20MHz. You can use the ‘Arduino Duemilanove w/ 328’ setting, but the timing and delays will assume the board is at 16MHz, so everything will run faster and may mess up timing limitations.
Arduino Pro does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Duemilanove. It’s a great board that will get you up and running quickly. The Arduino Pro series is meant for advanced users that understand the limitations of system voltage (5V), lack of connectors, and USB off board.
We wanted Arduino Pro to be low profile. The DC power jack footprint is available, but not populated. We recommend running the board with a LiPo battery for better portability.
We really wanted to minimize the cost of an Arduino. The Arduino Pro is like the Arduino Duemilanove (same pin out) but to keep the cost low, we used all SMD components, made it two layer, etc. This board connects directly to the FTDI Basic Breakout board and supports auto-reset. The Arduino Pro also works with the FTDI cable but the FTDI cable does not bring out the DTR pin so the auto-reset feature will not work.
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