bsrobot

Thanks for the reply. In these days I will start some tests. One question, I don't have the led pin. Could the LED pin be my BLK? Another curiosity, why use fb_ili9341 and not fb_st7735r? on PCB i have only SDA i don't have MISO and MOSI pins. How can I do? Thank you

Hi, I would like to use st7735 in an orangePI zero 2 (H616). The st7735 module was purchased at the following link: https://it.aliexpress.com/item/33031122936.html?spm=a2g0o.order_list.order_list_main.32.c5eb36966Y6eGs&gatewayAdapt=glo2ita Armbian usage. I connected st7735 in the following way: OPI --------> st7735 23 --------> SCK 19 --------> SDA 24 --------> CS 13 --------> AD 11 --------> RTD 4 --------> VCC 25 --------> GND I then ran the following command: sudo modprobe fbtft_device custom name=fb_st7735r gpios=dc:3,reset:0 speed=16000000 rotate=90 The screen stays white with a red stripe at the bottom. I can't find any errors in dmesg. /dev/fb1 is created how can i use the command con2fbmap 1 1 which I found by following this guide: https://www.instructables.com/Orange-Pi-Zero-Connect-TFT-SPI-ST7735/ Thank you