@@ -31,7 +31,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR (MP_QSTR_LCD_CS ), MP_ROM_PTR (& pin_GPIO5 ) },
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{ MP_ROM_QSTR (MP_QSTR_GPIO5 ), MP_ROM_PTR (& pin_GPIO5 ) },
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- // 6-11 not connected?
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+ // GPIOs 6-11 are connected to the module's integrated SPI flash and PSRAM
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{ MP_ROM_QSTR (MP_QSTR_TOUCH_IRQ ), MP_ROM_PTR (& pin_GPIO12 ) },
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{ MP_ROM_QSTR (MP_QSTR_EXP20 ), MP_ROM_PTR (& pin_GPIO12 ) },
@@ -49,7 +49,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR (MP_QSTR_EXP7 ), MP_ROM_PTR (& pin_GPIO15 ) },
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{ MP_ROM_QSTR (MP_QSTR_GPIO15 ), MP_ROM_PTR (& pin_GPIO15 ) },
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- // 16- 17 not connected?
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+ // GPIOs 16 and 17 are connected to the module’s integrated PSRAM
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{ MP_ROM_QSTR (MP_QSTR_VSPI_SCK ), MP_ROM_PTR (& pin_GPIO18 ) },
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{ MP_ROM_QSTR (MP_QSTR_EXP12 ), MP_ROM_PTR (& pin_GPIO18 ) },
@@ -65,7 +65,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR (MP_QSTR_SD_MISO ), MP_ROM_PTR (& pin_GPIO19 ) },
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{ MP_ROM_QSTR (MP_QSTR_GPIO19 ), MP_ROM_PTR (& pin_GPIO19 ) },
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- // 20 not connected?
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+ // GPIO 20 is only available on ESP32-PICO-V3 chip package
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{ MP_ROM_QSTR (MP_QSTR_LCD_DC ), MP_ROM_PTR (& pin_GPIO21 ) },
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{ MP_ROM_QSTR (MP_QSTR_EXP15 ), MP_ROM_PTR (& pin_GPIO21 ) },
@@ -85,7 +85,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR (MP_QSTR_SD_MOSI ), MP_ROM_PTR (& pin_GPIO19 ) },
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{ MP_ROM_QSTR (MP_QSTR_GPIO19 ), MP_ROM_PTR (& pin_GPIO19 ) },
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- // 24 not connected?
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+ // 24 not connected
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{ MP_ROM_QSTR (MP_QSTR_IRRX ), MP_ROM_PTR (& pin_GPIO25 ) },
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{ MP_ROM_QSTR (MP_QSTR_SPEAKER_IN ), MP_ROM_PTR (& pin_GPIO25 ) },
@@ -99,7 +99,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR (MP_QSTR_EXP22 ), MP_ROM_PTR (& pin_GPIO27 ) },
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{ MP_ROM_QSTR (MP_QSTR_GPIO27 ), MP_ROM_PTR (& pin_GPIO27 ) },
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- // 28-31 not connected?
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+ // 28-31 not connected
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{ MP_ROM_QSTR (MP_QSTR_BTN_A ), MP_ROM_PTR (& pin_GPIO32 ) },
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{ MP_ROM_QSTR (MP_QSTR_EXP23 ), MP_ROM_PTR (& pin_GPIO32 ) },
@@ -121,7 +121,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR (MP_QSTR_EXP27 ), MP_ROM_PTR (& pin_GPIO36 ) },
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{ MP_ROM_QSTR (MP_QSTR_GPIO36 ), MP_ROM_PTR (& pin_GPIO36 ) },
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- // 37-38 not connected?
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+ // 37-38 not connected
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{ MP_ROM_QSTR (MP_QSTR_START ), MP_ROM_PTR (& pin_GPIO39 ) },
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{ MP_ROM_QSTR (MP_QSTR_EXP26 ), MP_ROM_PTR (& pin_GPIO39 ) },
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