The Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs) and 6 analog inputs.
The Finder 40.31.9.024 is a miniature electromechanical power relay for PCB or socket mounting, designed for switching, isolation, and control applications in electronic equipment, control panels, automation systems, and command circuits.
The Finder 40.52.8.024 is a miniature electromechanical power relay for PCB or socket mounting, designed for switching, isolation and control applications in electronic equipment, control panels, automation systems and command circuits.