With this shield, the D1 Mini can be operated with any power supply unit operating in the voltage range from 7 to 24 V. • Input: 7 - 24 V • Max. output current: 1 A • Input possible via DC socket 5.5 x 2.1 mm (+ inside/- outside) or screw terminal Pin assignment • 5 V: 5-V supply voltage • GND: Earth Note: Supplied with screw terminal and 2 pin headers