Review on BIGTREETECH TFT35 V3.0.1 Graphic Smart Display Controller Board For 3D Printer Ramps 1.4 RepRap 3D Printer Can Select Two Work Modes by Brian Wesley

So far this has been a great update to my Ender 3. Touch screen works great, especially after running a calibration cycle which was easy to access in the settings menu. Since this is made as a drop-in replacement for the Ender 3 screen, however, one would think they'd have rotated the pin-out for the ribbon cable to match the orientation on the original. I had to clip off the keyed tab on the connector to insert it backwards to get it to work. Better documentation is definitely needed, I only knew to do this because of a video by Teaching Tech on YouTube.The downside: the firmware isn't quite ready yet. It's still extremely buggy. I've had several failed prints already just trying to adjust temperature settings from the touch screen while printing. There is a wifi input for the ESP-01S arduino board but functionality is not yet realized in firmware, even though BTT is selling the wifi adapter along with it in some cases. You can buy the ESP-01S along with a programmer adapter USB for the same price and won't have to wait for BTT to finish writing the firmware for a product they already released.Bottom line: wait on buying this if you're not ready to deal with the firmware in its current state.