Specifications: 1. Needn’t back light for the display unit can self-luminous 2. High resolution:128*64 3. Viewing angle:>160 4. OLED screens inside the driver chips : SSH1106 5. Supports many control chip : fully compatible with Arduino 51 series,msp430 series , stm32/2 CSR IC , ETC 6. Ultra-low power consumption:full screen lit 0.08w 7. Voltage: DC 3V-5V 8. Work temp : -30°C-70°C 9. Spi interface 10. The color of word : blue Pin Description: 1. GND: Power ground 2. VDD: 2.8-5.5V power supply 3. SCK: CLK clock 4. SDA: MOSI data 5. RES: Reset 6. DC: data / command 7. CS: chip-select signal