Specification: 0.91 inch OLED display module Color: White light, Blue light (We send the white light by default.if you need blue light,please inform us) Dot-matrix: 128×32 Driver IC: SSD1306 Supply voltage: 3.3V-5V Interface definition: foot: GND (ground) feet: VCC (power cord) feet: SCL (clock line) feet: SDA (data cable)
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