It's smelling like burnt plastic today...
It's smelling like burnt plastic today... I've connected a TFT + SD card + RTC clock to the Arduino mega, which is clearly over the top. It worked fine with TFT+SD or TFT+RTC
I realized I could power the SD card reader with 3V and this seems to be working well.
It looks like the SD card reader is taking up to roughly 100mA so it should be good.Nick's comment seems to be pointing to the direction that something else is going on and I should be good having the TFT+RTC+SD card reader together.
which clearly states, twice, that the 3.3v pin is good for 50mA.