Description: Using 2 pieces of 595 drive digital tube, need 3 channel IO port of MCU, display according to the dynamic scanning principle of digital tube Wide working voltage 3.3V to 5V Size: 66.4 x 26 x 9mm Weight: 14g Digital tube model: 0.56 inch, red common anode Package Includes: 1 Piece 4 Bits Digital Tube LED Display Module
