Touch doesn't work properly on bat power , but ok on USB power - T-Display S3 Pro
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I have this issue that is driving me crazy. When I have the T-Display S3 Pro connected to my computer with a USB cable the touch screen reacts quickly and perfectly. However, when I disconnect the USB cable from the T-Display S3 Pro the touch because much less reliable and often doesn't sense my finger touching the screen. I have it set up so that it displays the x and y coordinates on the screen so I can see if it sees where I touched the screen and there I can see that the numbers do not change.
Has anyone else also seen this issue?
Thank you!
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I just wanted to give an update. I have recreated the problem I was seeing before - this time using the "CapacitiveTouch" example provided by LilyGo on their GITHUB page meaning I can rule out anyting in my code as being a problem.
linked here...Again, the problem is a follows, when the unit is powered from the USB port, it recognizes all touches on the screen without any problems. When the USB power is removed and the unit is powered by the internal battery it sometimes works and sometimes doesn't recognize the touches on the screen. This makes the T Display S3 Pro unusable for me as a battery powered, portable device.
My question is: Do I have a faulty unit or is there some kind on inherent design problem that effects every one of them?
Thank you!