AI Thinker ES8388 Audiokit with TFT

[gerthalberg]

I've managed to get the radio and the display to work with the following settings (ILI9488) Also, the TFT frequency has to be set to 27000000 otherwise the display blanks after a few seconds. The board switches has to be set to: OFF OFF ON ON OFF

#ifdef CONFIG_IDF_TARGET_ESP32 // Digital I/O used #define TFT_CS 22 #define TFT_DC 21 #define TFT_BL -1 // at -1 the brightness menu is not displayed #define TP_IRQ 3
#define TP_CS 5 #define SD_MMC_D0 2 // cannot be changed #define SD_MMC_CLK 14 // cannot be changed #define SD_MMC_CMD 15 // cannot be changed #define IR_PIN 35 #define TFT_MOSI 13 // TFT and TP (VSPI) #define TFT_MISO 19 // TFT and TP (VSPI) #define TFT_SCK 12 // TFT and TP (VSPI) #if DECODER == 0 #define VS1053_CS 33 #define VS1053_DCS 4 #define VS1053_DREQ 36 #define VS1053_MOSI 13 // VS1053 (HSPI) #define VS1053_MISO 34 // VS1053 (HSPI) #define VS1053_SCK 12 // VS1053 (HSPI) (sometimes we need a 1k resistor against ground) #else #define I2S_DOUT 26 #define I2S_DIN -1 // pin not used #define I2S_BCLK 5 #define I2S_LRC 25 #define I2S_MCLK 0 // mostly not used #endif #define I2C_DATA 18 // some DACs are controlled via I2C #define I2C_CLK 23 #define SD_DETECT -1 // some pins on special boards: Lyra, Olimex, A1S ... #define HP_DETECT -1 #define AMP_ENABLED -1 #endif

Unfortunately it seems, that my use of GPIO03 (RDX0) for the TP_IRQ does not work - at least, the display does not react to touch (could it be a calibration issue?). I'm wondering if it could be possible to attach a wire to GPIO36.

[schreibfaul1]

Sure it's possible. An "input only pin" can be selected for TP_IRQ. With a touch event, IRQ is set, then the coordinates are queried via SPI. I assume you have the same ILI9488 display as me. Then TFT-MISO must remain unconnected. TFT-MISO is also not required. It's a bug in the display itself.

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