아두이노 OLED 활용 예
https://makeabilitylab.github.io/physcomp/advancedio/oled.html#oled
https://github.com/typewriter/rpi-temperature-graph
https://goodbtsk.live/product_details/19262200.html
https://hackaday.io/project/183702-arduino-nano-20khz-digital-portable-oscilloscope/details (★)
OLED효과
