Olimex-Arduino-Compatible-Development-Boards-Olimex-OLIMEXINO-32U4-P-The-Olimex-Olimexino-32U4-is-an-ATMEGA-32U4-based-Arduino-Leonardo-compatible-microcontroller-board-Olimex-have-capitalised-on-&-enhanced-upon-the-Leonardo-s-design-in-a-number-of-ways-making-this-a-very-attractive-alternative-Following-Atmel-s-recommendations-the-power-system-has-been-reworked-for-noise-immunity-preventing-spurious-RESETs-when-the-board-drives-motors-P-BR-P-The-Olimex-design-uses-ultra-low-power-v