Anyone using a BTT Pi TFT43 V2.0?

[ken226]

 

If you happen to be using the CM4 in an adapter board,  here are the instruction to install the dt-blob.bin driver.  Don't install it if your not using a CM4, as the dt-blob.bin driver disables your HDMI output.

 

Run each of these commands, in order, one at a time:

 

 

wget https://www.waveshare.com/w/upload/7/75/CM4_dt_blob_Source.zip

unzip -o CM4_dt_blob_Source.zip -d ./CM4_dt_blob_Source

sudo chmod 777 -R CM4_dt_blob_Source cd CM4_dt_blob_Source/

sudo dtc -I dts -O dtb -o /boot/dt-blob.bin dt-blob-disp1-double_cam.dts

 

 

 

 

Edited April 13, 2023 by ken226

[Slushy_Trout]

So disabling the #start_x=1 service reverted the display back to showing only the console, no klipperscreen.  

I don't think I am using the CM4 adapter board.  Just a pi 3B and the BTT pi tft43 screen connected with the DSI ribbon.  

[ken226]

7 minutes ago, Slushy_Trout said:

So disabling the #start_x=1 service reverted the display back to showing only the console, no klipperscreen.  

I don't think I am using the CM4 adapter board.  Just a pi 3B and the BTT pi tft43 screen connected with the DSI ribbon.  

If you havn't already,  re enable the start_x=1 service

Then go go into raspi-config, interface options and enable spi and i2c.  Then reboot.

if that doesn't work, im out of ideas.

 

On mine,  untill i have enabled spi and i2c,  i get the same as you.  basically, it displays but touch doesn't work.

Edited April 13, 2023 by ken226

[Slushy_Trout]

I'll try enabling the spi and i2c tomorrow.  I've done so much today, I can't remember If I did that this time around or not.

[ken226]

48 minutes ago, Slushy_Trout said:

I'll try enabling the spi and i2c tomorrow.  I've done so much today, I can't remember If I did that this time around or not.

Also, if enabling spi and i2c doesn't help,  read through Burmans post, here.  His Pi tft50 should be nearly identical.

 

 

[Slushy_Trout]

Thanks for all the guidance!  I ended up using a pi 4 to get it to work.  There must be an issue with compatibility with the pi3's.  

[quad121]

Sorry for bringing back an old post, but I’ve tried to install a BTT pitft43 v2.1, but on connecting the ribbon cable I’m getting no picture just a black screen.  The previous screen I was using was a Raspberry pi 7” screen which was working fine with Klipperscreen. 
The screen is connected to a rpi 4b which is powered via its gpio pins using a dedicated psu. (5v meanwell). 
on connecting the screen I did get a warning that the pi cpu where undervoltaged ?

[quad121]

[claudermilk]

How exactly is your Pi connected for power? When I first built my Trident I used a single 5v line between the Octopus & Pi and eventually got that warning intermittently. I added a second 5V wire to the next GPIO 5v pin and haven't seen the error since.

[quad121]

It’s connected using a 5v psu directly connected to the appropriate gpio pins of the Pi

[quad121]

[HHHH]

Hello everyone,

Sorry for bringing back this topic again but, I'm currently using a RPI 5 for my new voron build and I can not manage to see anything on my BTT TFT PI43". I have tried to reinstall the klipperScreen using kiauh and nothing happened, only a black screen. I see the screen is powered and the Raspberry Pi is not giving any power problems.

Is there any configuration that I might be missing? I have been a few days stuck and I'm not finding any answers that fit my problem.
Thanks in advise.

[mvdveer]

The most common reason for this is an inverted ribbon cable on the TFT 43 end. Not saying this is in your case but worth to check and make sure.

 

[HHHH]

Power is delivered to the screen, the ribbon cable seem to be well placed in both sides. Is there any config file that I have to change, add something or uncomment? I have not changed anything about the screen because I have not find anything. KlipperScreen is enabled and running.

5 minutes ago, mvdveer said:

The most common reason for this is an inverted ribbon cable on the TFT 43 end. Not saying this is in your case but worth to check and make sure.

 

 

[mvdveer]

4 minutes ago, HHHH said:

Is there any config file that I have to change, add something or uncomment

I have not installed a Raspi 5 with TFT personally. Did a bit of research and came across this thread on reddit. May be helpful? Don't know if it will solve your issue