@@ -31,7 +31,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
3131 { MP_ROM_QSTR (MP_QSTR_LCD_CS ), MP_ROM_PTR (& pin_GPIO5 ) },
3232 { MP_ROM_QSTR (MP_QSTR_GPIO5 ), MP_ROM_PTR (& pin_GPIO5 ) },
3333
34- // 6-11 not connected?
34+ // GPIOs 6-11 are connected to the module's integrated SPI flash and PSRAM
3535
3636 { MP_ROM_QSTR (MP_QSTR_TOUCH_IRQ ), MP_ROM_PTR (& pin_GPIO12 ) },
3737 { 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[] = {
4949 { MP_ROM_QSTR (MP_QSTR_EXP7 ), MP_ROM_PTR (& pin_GPIO15 ) },
5050 { MP_ROM_QSTR (MP_QSTR_GPIO15 ), MP_ROM_PTR (& pin_GPIO15 ) },
5151
52- // 16- 17 not connected?
52+ // GPIOs 16 and 17 are connected to the module’s integrated PSRAM
5353
5454 { MP_ROM_QSTR (MP_QSTR_VSPI_SCK ), MP_ROM_PTR (& pin_GPIO18 ) },
5555 { 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[] = {
6565 { MP_ROM_QSTR (MP_QSTR_SD_MISO ), MP_ROM_PTR (& pin_GPIO19 ) },
6666 { MP_ROM_QSTR (MP_QSTR_GPIO19 ), MP_ROM_PTR (& pin_GPIO19 ) },
6767
68- // 20 not connected?
68+ // GPIO 20 is only available on ESP32-PICO-V3 chip package
6969
7070 { MP_ROM_QSTR (MP_QSTR_LCD_DC ), MP_ROM_PTR (& pin_GPIO21 ) },
7171 { 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[] = {
8585 { MP_ROM_QSTR (MP_QSTR_SD_MOSI ), MP_ROM_PTR (& pin_GPIO19 ) },
8686 { MP_ROM_QSTR (MP_QSTR_GPIO19 ), MP_ROM_PTR (& pin_GPIO19 ) },
8787
88- // 24 not connected?
88+ // 24 not connected
8989
9090 { MP_ROM_QSTR (MP_QSTR_IRRX ), MP_ROM_PTR (& pin_GPIO25 ) },
9191 { 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[] = {
9999 { MP_ROM_QSTR (MP_QSTR_EXP22 ), MP_ROM_PTR (& pin_GPIO27 ) },
100100 { MP_ROM_QSTR (MP_QSTR_GPIO27 ), MP_ROM_PTR (& pin_GPIO27 ) },
101101
102- // 28-31 not connected?
102+ // 28-31 not connected
103103
104104 { MP_ROM_QSTR (MP_QSTR_BTN_A ), MP_ROM_PTR (& pin_GPIO32 ) },
105105 { 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[] = {
121121 { MP_ROM_QSTR (MP_QSTR_EXP27 ), MP_ROM_PTR (& pin_GPIO36 ) },
122122 { MP_ROM_QSTR (MP_QSTR_GPIO36 ), MP_ROM_PTR (& pin_GPIO36 ) },
123123
124- // 37-38 not connected?
124+ // 37-38 not connected
125125
126126 { MP_ROM_QSTR (MP_QSTR_START ), MP_ROM_PTR (& pin_GPIO39 ) },
127127 { MP_ROM_QSTR (MP_QSTR_EXP26 ), MP_ROM_PTR (& pin_GPIO39 ) },
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