The TinyCircuits TinyDuino is an Arduino compatible board in an ultra compact package. 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 * 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 Board Note: 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. To learn more about the TinyDuino Platform, click here. https://elecena.pl/product/22717512/tinyduino-processor-board-with-coin-battery-holder-discontinued 2023-03-07 https://elecena.pl/product/22717512/tinyduino-processor-board-with-coin-battery-holder-discontinued 2024-09-19