This expansion board is designed to allow easy access of the interface pins of an Arduino Nano. Each DIO pin or analogue pin of the Nano is brought out to a convenient header. If you add header pins, this board can also be used as expansion shield for the WPB100 and WPB101 (UNO and Mega).
Features:

1. multi-functional for various applications
2. compact size
3. reliable quality for long time use
4. on-board voltage regulator 3.3 V / 1 A

Specifications:

1. max. input voltage: 12 VDC
2. max. current : 1 A
3. DC connector: 5.5 / 2.1 mm
4. dimensions: 58 x 53 x 15 mm
5. weight: 20 g

ds1117_datasheet.pdf

vma210_scheme.pdf

ce_rohs_open.pdf

wpb210a4v01.pdf