Mikroelektronika relay click board mikroelektronika mikroe 1370 the relay click board is an add on accessory board in mikrobus form factor that is a plug n play complement to the mikrobus system the board enables the expansion of designs with additional functionality with minimum hardware configuration the board features two 5v dc power pcb relay modules each with two screw terminals each relay can control up to 5a 250v ac 30v dc loads communicates with target board microcontroller via m