How to: Arduino board of bread ...



Have a pair of Arduinos useful plate bread can really make rapid prototyping and painless.  And while the bread Arduino board has very much has been flogged to death in every way, shape and riding, we are posting our deliveries as a reference for future projects and still be released libraries.  Before you begin, here are some links to some of the nicest dead ponies previously referred:


The simplicity and conserve energy, our variant disclaims any voltage Regulation.  It runs directly from 3 x AA batteries where it will work reliably at 16 MHz up to about 4 volts.  8 MHz battery voltage can safely fall as low as 2.5 volts, which is a great use of "dead" batteries.  As indicated by the tag, this specific Mega328 has fuses is defined as the internal 8 MHz RC oscillator, the 16 MHz crystal is on the Board, but it's just for show, what is a poser ...


The LED on the Arduino pin 13, there is a connector ICSP/SPI in the upper-right corner and the USB dongle in the middle.  As we have been working on a modified bootloader, the ICSP connector has seen much use.  The USB miniboard is a project in the House, is based on the FT232R and QFN package as well as having all the i/o burst, boasts a switch at the bottom of 3/5 volts.  The rest of the pieces is a handful of capacitors, both en masse and ignore, as well as the reset and power switch.  Below we have the circuit diagram, more or less wrapped in bread plate form, click to see full size:


The Eagle's footprint to the Mega328 is organized according to the pins of the chip.  The library file is available here: n0m1.com-mega328p.rar.  And the schema in Eagle format is here: BBA sch


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