Schematic of the conventional level shifter. Logic level I2c works only one way between 3.3v and 5v arduinos with logic level
MOSFET level shift - Electronics information from PenguinTutor
Blue s logo level 4
Bss138 level shifter causing problems (2 solutions!!)
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Bss138 mosfet datasheet : working and its applications
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Logic level converter schematicDo not use bss138 for logic level shifting (too slow!) Bss138 level shifter.
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