BL12832B 1. OLED Display 128 x 32 dots 2. Built-in controller SSD1305 3. +2.4~ +3.5V single power supply 4. 1/32 duty cycle 5. Color: white Module Dimension Viewing Area Dot Size Dot Pitch 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NC Vss Vcc VCOMH IREF D2 D1 D0 D/C RES CS BS1 VDDIO VDD Vss NC 30.4 x 14.5 25.58 x 6.38 0.18 x 0.18 0.20 x 0.20 No connection Ground Power supply for OLED panel COM voltage output Reference current input pin In SPI application ,the pin should be floated Data bus(SDIN) Data bus(SCLK) Data/command control Reset signal input Chip select input. Interface select pin, SPI: LOW Power supply for I/O buffer Power supply for logic Ground No connection 6 100 20 30,000