Why Your I2C Scanner Finds Nothing (And How to Fix It)

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AI Fusion Summary

I2C scanners show no devices when pull‑up resistors are absent, keeping SDA and SCL low; adding 4.7kΩ or 10kΩ pull‑ups resolves it. OLED flicker stems from unstable VCOMH; a 10µF capacitor across VCC and GND stabilizes VCOM and stops flicker.
#I2C #PULL_UP #OLED #VCOM #CAPACITOR #HARDWARE
18/04 19:12 dev.to
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Why Your I2C Scanner Finds Nothing (And How to Fix It)

I2CMAKERSPOLITICSARDUINO
18/04 19:17 dev.to

Why Your OLED Display Flickers (And How to Fix It)

DISPLAYARDUINOOLEDPOLITICSWEATHER
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