Hey!
So im using an Arduino Nano Every and a TFT LCD screen to display bitmap images, everything works fine when I power the Arduino with the USB cable, however when I power with 3.7 V 1000 mA lithium battery screen stays white. Im also using a voltage booster to bring the 3.7 V up to 5 V. Here are the connections:
*BTW battery is also connected to 5V pin
*TFT display I'm using: https://www.amazon.com/-/es/gp/product/B07WDJ3TV6/ref=ewc_pr_img_4?smid=AFLYC5O31PGVX&psc=1
Have you measured the 5V out of the voltage converter with a multimeter?
Is the battery fully charged?
Tried a new voltage converter?
Tried a different battery?
Yes. Sorry I didn’t include in description. I checked with a multimeter, batteries are fully charged and Arduino its getting the 5 V. I also tried with a different battery.
I am at a loss here, possibly the screen itself? Check voltages going to the screen possibly?
I also noticed you have pins 11 and 13 connected to the screen and the SD card slot?
Shouldnt they be on seperate lines?
Also what is the brand and model/type/revision of the TFT you are using?
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