i was wondering is there any method convert the 3.3 v logic of sdcard to 5 v of arduino bu using NPN or PNP transistors like bc547 and bc557. do we need to use level shifter ic and so then to use which ic i have an SD breakout board

3.3v to 5v inverter by bc547

doughboy August 24, 2012, 6:31pm 9

what oscilloscope did you use?

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