If you've ever struggled to use a solderless breadboard with an Arduino, you understand how frustrating it can be! I designed this Arduino clone to solve this problem in an inexpensive DIY fashion.
The Boarduino is an Arduino clone: when programmed with the Arduino bootloader, it can talk to the Arduino software and run sketches just like the original.
There are noticable differences between the Boarduino and the Arduino.
* Shields cannot be used as the form factor is so different
* There are two versions, a DC version and a USB version
For the DC version there isn't an on-board USB chip. This means you need to use a
USB-TTL cable
or a [url=http://www.emartee.com/product/41824/Arduino-Mini-USB-
Adapter]MiniUSB[/url] (or any other FTDI breakout board) which is not included. There
are also no rx/tx LEDs and no rx/tx 1K series resistors.
For the USB version, there is an on-board USB chip but there isn't a DC jack or 5V
regulator, you can power it through the USB jack. There is a rx 1K resistor so you can
use this to talk to serial accessories.
* 16.00 MHz ceramic resonator is used instead of crystal, so cycle speed may be off by
+- 0.3nS (0.5%). This isn't relevant for UART timing, servo drivers, PWM, etc. but could
be an issue if you need nanosecond-precision timing. Note that the Arduino software
only provides millisecond-precision timing for general sketches (1 second = 1000ms.
1ms = 1,000,000 ns)
The specifications for the DC boarduino include:
* Designed to plug into a breadboard for easy prototyping
* Petite size, only 3" x 0.8" (75mm x 20mm)
* All 'standard' pins are brought out - Digital 0 thru 13, Analog 0 thru 5, ARef, 5V,
Ground, Vin and Reset
* 2 LEDs, green power and red "pin 13" LED just like the Arduino Diecimila
* Standard Reset button
* ATmega328P, running at 16.00 MHz, just like the latest Arduino, the Duemilanove
(note that the product photo above hasn't been updated)
* 6-pin standard ICSP header
* Standard 2.1mm DC jack (just like the original Arduino) with 5V regulator to run on
7V-17V power (DC)
* USB or External power, selectable with a jumper (just like original Arduino)
* 1N4001 diode protects against using incorrect wall adapter
* 6-pin header at the end for a USB-TTL cable
* Auto-reset capability when used with a USB-TTL cable
* Available as a low cost kit with standard parts, so its never out of stock
* All through-hole parts are easy to solder
The specifications for the USB boarduino include:
* Designed to plug into a breadboard for easy prototyping
* Petite size, only 2.75 " x 0.8" (75mm x 20mm)
* All 'standard' pins are brought out - Digital 0 thru 13, Analog 0 thru 5, ARef, 5V,
Ground ,3.3V and Reset
* 2 LEDs, green power and red "pin 13" LED just like the Arduino Diecimila
* Standard Reset button
* ATmega168, running at 16.00 MHz, just like the NG and Diecimila
* 6-pin standard ICSP header
* Standard USB jack
* USB or external power, selectable with a jumper
* 500mA fuse protects your computer from current overdraw
* Auto-reset capability
* Available as a low cost kit with standard parts, so its never out of stock
* All through-hole parts are easy to solder - SMT chip is presoldered & tested when
purchased as a kit |
