Features: This is a 1.5 inches OLED display module of 128x128 resolution in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. Working without backlight, the OLED display module could give out light by itself. In low ambient light conditions such as a dark room, an OLED screen can achieve a higher contrast ratio than an LCD. OLED display module also has a much faster response time than an LCD. The display with small dimension is suitable for MP3, function cellphone, smart health device, etc. Specifications: Display Size: 1.5in Resolution: 128*128 Driver IC: SSD1351 Interface Type: Serial Peripheral Interface/68XX-Series/80XX-Series interface Pin Quantity: 30Pin Display Color: Full color Pixel Size: 0.045*0.194mm Operating Temperature: -30~70 Working Voltage: 3.5V Pin Symbol 16 R/W# 1 N.C. (GND) 17 BS0 2 VCC 18 BS1 3 VCOMH 19 CS# 4 VDDIO 20 5 VSL 21 RES# 6 N.C. 22 IREF 7 D7 23 GPIO1 8 D6 24 GPIO0 9 D5 25 N.C. 10 D4 26 VDD 11 D3 27 VCI 12 D2 28 VSS 13 D1 29 N.C. 14 D0 30 N.C. (GND) 15 E/RD# Package Includes: 1 x OLED Display Module Note: This kit requires certain professional knowledge and ability, please make sure you know how to wire and use it.