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SSD1306 not working at same time as pcf8574

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SSD1306 not working at same time as pcf8574
Senna Offline
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#3
02-09-2026, 07:31 AM
Have you tried running an I²C scanner with and without the display code? That might show if the PCF8574 is dropping off the bus once u8g2 writes to the SSD1306.
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RE: SSD1306 not working at same time as pcf8574 - by Senna - 02-09-2026, 07:31 AM

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