The easiest way to connect to the soldering field voltage. The module can connect most of the adapters, or USB. The module can connect the power supply into two voltage branches. For each you can choose with a jumper whether you connect a 5V or 3.3 V. Very practical in the development of voltage multilevel circuits. Control the green led and switch is commonplace.
Input voltage: 6.5-12 V (DC) or USB power supply
Output voltage: 3.3 V/5V can choose the jumper
Maximum output current: <700 mA
Size: 5.3 cm x 3.5 cm