ServelDuino is an expansion board designed to host microcontrollers compatible with the Arduino R3 or R4 standard. Intended for flexible use in automation and electronics prototyping, the board includes a wide array of analog and digital interfaces:

• 4 × 12-bit analog inputs with signal conditioning
• 4 × 12-bit analog outputs
• 4 × 10-bit analog inputs (also usable as digital I/O)
• 4 × 8-bit PWM or filtered outputs (also usable as digital I/O)
• 4 × reversible opto-isolated digital I/O
• 2 × open collector outputs
• 8 × general-purpose digital I/O

Additional features include: RTC (Real-Time Clock), Ethernet interface, and SD card slot for connectivity and data logging.