Driver IC : ST7735R Support Arduino 128 x 160 pixels Resolution Wiring IO definition used: 1.RESET - directly connected to the microcontroller IO 2.CS - directly connected to the microcontroller IO 3.A0 - access IO control register selection 4.SDA -connected to IO control data transmission 5.SCL - connected to IO control SPI bus 6.BL - connected to high-level chip 3.3V backlight always bright PCB size: about 5.10cm*4.60cm/2.01 #34;*1.81 #34; Package List: 1 x 1.8 #34; TFT Display Module