While checking the electrical continuity of connections between Nano A4 - SDA & A5 - SCL to a 0.91 OLED display, I found that A4,A5 were shorted to each other. Are they not electrically isolated? What am I missing? Thanks.
Dean S.
(deleted)
Are they shorted on the Nano if you disconnect the display? If so, check the Nano with a magnifying glass for shorts, and remove them, possibly with a soldering iron.
If not, check for shorts on the display.
Check your wiring, see somehow two wires went to the same pin.