Hi ta_dan, I've connect the TFTM070-5 power pins as you did, and I have been able to receive a:
"RA8875 start
Found RA8875"
From the buildtest.ino example of the Adafruit RA8875 Library:
But did someone modify that Library to order to have a good image show on the TFT screen ??? I only got flickers, weird lines, and this is only sometimes. Usually, the TFT is recognized by my Arduino Mega, but nothing shows on the screen.
Anyone have an Idea ?
I do have 10K resistors as per the Datasheet and the proper jumpers/resistors have been populated on the board. It runs over 5V with an external Power Supply. The RST (pin#12 of the TFT screen-RA8875 controller) is hooked with a voltage divider, so it is 3.3v instead of 5.0v)
I wont get through the Arduino -> Ra8875 pinout connection since I receive a "RA8875 Found" from the Arduino, so SPI in communicating.
Anyone got an idea ? I'm trying to show the vendor that the screen is defect, did anyone manages to make this screen works with the adafruit_ra8875 library untouched (except for the pinout definition).
Thanks !