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Interfacing (DSI, CSI, I2C, etc.) • Re: Subject: Conflict Between HiFiBerry DAC and ST7735 Display on Raspberry Pi

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Code:

~$ dtoverlay -h adafruit-st7735rName:   adafruit-st7735rInfo:   Overlay for the SPI-connected Adafruit 1.8" 160x128 or 128x128 displays,        based on the ST7735R chip.        This overlay uses the newer DRM/KMS "Tiny" driver.Usage:  dtoverlay=adafruit-st7735r,<param>=<val>Params: 128x128                 Select the 128x128 driver (default 160x128)        rotate                  Display rotation {0,90,180,270} (default 90)        speed                   SPI bus speed in Hz (default 4000000)        dc_pin                  GPIO pin for D/C (default 24)        reset_pin               GPIO pin for RESET (default 25)        led_pin                 GPIO used to control backlight (default 18)
i.e. you need to use the "led_pin" parameter (sometimes pin and GPIO are used interchangeably, but in the Device Tree context it is almost always a GPIO number rather than a header pin number).

Statistics: Posted by PhilE — Tue Nov 26, 2024 8:54 am



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