The Heart of the TinyDuino Platform!

The TinyCircuits TinyDuino is an Arduino compatible board in an ultra compact package. Imagine the possibilities of having the full power of an Arduino Uno in a size less than a quarter! The TinyDuino processor board is roughly equivalent to the Arduino Uno board – same processor, same signals brought out to a shield connector. In fact, most Arduino sketches will work as is without any changes.

Includes:

• Atmega328P processor (same as is used on the Arduino Uno)
• Reset switch
• Status LED
• 8MHz ceramic resonator
• Optional battery connector for CR1612-CR1632 coin cell batteries
• External power supported with a 0.1″ power connection holes
• Supports automatic switching between +5V and VBATT (if +5V is present, it will be used instead of the battery)

Note:

• To program this board, you need to use the TinyShield USB & ICP Board
• This board does not include a voltage regulator – do not supply more than +5.5V to VBATT or the +5V signal or you will permanently damage the board and ruin your day.

Specifications:

• Arduino and LilyPad Compatible
• Expandable with Stackable TinyShield Boards
• 0.1″ spaced solder holes for external power source
• Robust Gold Finish – makes soldering easy and is non-corrosive
• Ultra compact size and weight (smaller than a US Quarter!)
  • Square Version: 20mm x 20mm (.787 inches x .787 inches)
  • Circular Version: 20mm (.787 inches) diameter
  • Max Height (without battery holder): 2.9mm (0.12 inches)
  • Max Height (with battery holder): 6.58mm (0.26 inches)
  • Ultra-thin 0.61mm (0.024 inches) PCB
• Atmel ATmega328P Microcontroller
  • 32KB Flash, 2KB RAM, 1KB EEPROM
  • 1.2mA (typical) @ 3V, 4MHz
  • Default Clock speed: 8MHz
• 2.7V – 5.5V operating voltage (Arduino mode)
• 1.8V – 5.5V operating voltage (with custom fw)
• 20 I/Os (14 Digital, 6 Analog / Digital I/O) – All the signals on the Arduino Shield connectors are supported!
• Arduino Bootloader preprogrammed (uses approx 0.5 KBytes of Flash Memory)

Support:

• Schmetatic
• Eagle Design Files