OLED LED&RGB. 0.96" I2C IIC SPI Serial 128X64 OLED LCD Display SSD1306 for Arduino 51 STM32. 1 x Blue 3-5V 0.96" SPI Serial 128X64 OLED LCD LED Display Module for Arduino. OLED (Organic Light-Emitting Diode) is a self light-emitting technology composed of a thin, multi-layered organic film placed between an anode and cathode.
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