To this, they’re adding a 128×32 pixel OLED, a micro SD slot, and 1Mbit of SRAM. The microcontroller is a variant that includes a 2.4 GHz Zigbee radio that allows for wireless connections to ...
OLED displays don’t have polarizing layers or fancy crystals. Instead, when voltage is applied, each sub-pixel in an OLED display lights up. Each sub-pixel contains a different molecule that ...
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