4in1 Module Dot matrix 32x8 pixel Controller : 4 X MAX7219 Warna Dot : Merah interface : SPI (Data/Clock/CS) VCC : 5VDC Size panel : 5.18 x 12.8 x 1.3 cm Library dan Tutorial : http://www.belajarduino.com/2016/08/4in1-dot-matrix-led-module-32x8-pixel.html Video Review : https://www.youtube.com/watch?v=gqK_9Wqx51M