TFT Screen Configuration

Overview

We don’t recommend using the BTT TFT firmware with RRF, even though it advertises as working with RRF. Instead, you should use this fork as it fixes a lot of issues with the BTT version and it actually works.

Connection to the board

Use pins +5V, GND, TX and RX on the “screen/tft/aux” header. These should be connected to +5V, GND, TX and RX on the TFT, making sure that TX and RX are swapped.
The specific screen pages for each board have more information.

Loading the firmware

There is now an RRF config.ini
It needs to be renamed from config_rrf.ini to config.ini for flashing of the firmware.

Config.g Changes

Add the following line to your config.g to enable the screen

M575 P1 S2 B57600

If the screen says No printer connected try with other values for the S parameter (possible values are 0, 1, 2 and 3)