Tronixstuff has a borderline insane tutorial series going, and as of now, 27 chapters have been published. It's essentially the Arduino Bible, but the two most recent additions in particular have ...

Arduino enthusiasts looking for a development board that is Internet of Things ready and offers 12 functions including a WiFi plug, Clock , EEPROM, SD, buzzer, NRF24 plug, LCD, RGB led, rotary encoder ...