Not exactly schematics, but [Duckman] has some Arduino pinout diagrams he made using ASCII-art. These could be useful when pasted into source code as comments, documenting the pinouts for your ...

Next is the complete schematic diagram of a little Arduino board for your everyday projects. Use the Atmega328P chip, with Arduino bootloader loaded by you, as the brain of this economical circuit.

The Alphanumeric LCD for Arduino will be our first circuit: using only one component, and of course the LCD, we can povide our Arduino board with at least a 16×2 alphanumeric LCD display that we will ...

The Arduino IDE can be loaded onto Windows requires Win 8.1 or 10, Mac OS X 10.8 Mountain Lion or newer, and Linux 32 and 64 bit computers and is written in Java and based on Processing and other ...

The release of the Arduino IDE 1.6.6 and updated cores for all supported platforms (AVR 1.6.9, SAM 1.6.5, SAMD 1.6.2) have now closed the door on 723 issues and merged 147 Paul requests.