Uploaded January 2024 | Updated September 2026, 3 weeks ago

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FYI the problem at 8:50 is fixed - it was a problem with the way I was writing the numbers to the screen.

The GitHub repo is here ➡️ github.com/rahji/esp8266_oled_test
OSCdump can be downloaded here, if you're interested➡️github.com/rahji/oscdump
The microcontroller was purchased here➡️aliexpress.us/item/3256805824888360.html