adafruit · tannewt · May 12, 2026 · May 5, 2026 · May 6, 2026 · May 10, 2026
diff --git a/ports/atmel-samd/boards/ugame10/board.c b/ports/atmel-samd/boards/ugame10/board.c
@@ -55,7 +55,7 @@ void board_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_PA09), // Command or data
         MP_OBJ_FROM_PTR(&pin_PA08), // Chip select
-        MP_OBJ_NULL, // Reset
+        mp_const_none,              // Reset
         24000000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/espressif/boards/elecrow_crowpanel_3.5/board.c b/ports/espressif/boards/elecrow_crowpanel_3.5/board.c
@@ -54,9 +54,9 @@ void board_init(void) {
     bus->base.type = &fourwire_fourwire_type;
     common_hal_fourwire_fourwire_construct(bus,
         spi,
-        MP_OBJ_FROM_PTR(&pin_GPIO2), // TFT_DC Command or data
+        MP_OBJ_FROM_PTR(&pin_GPIO2),  // TFT_DC Command or data
         MP_OBJ_FROM_PTR(&pin_GPIO15), // TFT_CS Chip select
-        NULL, // TFT_RST Reset
+        mp_const_none,                // TFT_RST Reset
         20000000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/espressif/boards/espressif_esp32s3_eye/board.c b/ports/espressif/boards/espressif_esp32s3_eye/board.c
@@ -58,7 +58,7 @@ void board_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO43),    // DC
         MP_OBJ_FROM_PTR(&pin_GPIO44),    // CS
-        NULL,           // no reset pin
+        mp_const_none,                   // no reset pin
         40000000,       // baudrate
         0,              // polarity
         0               // phase

diff --git a/ports/espressif/boards/hardkernel_odroid_go/board.c b/ports/espressif/boards/hardkernel_odroid_go/board.c
@@ -53,8 +53,8 @@ void board_init(void) {
     common_hal_fourwire_fourwire_construct(bus,
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO21), // TFT_DC Command or data
-        MP_OBJ_FROM_PTR(&pin_GPIO5), // TFT_CS Chip select
-        NULL, // TFT_RST Reset
+        MP_OBJ_FROM_PTR(&pin_GPIO5),  // TFT_CS Chip select
+        mp_const_none,                // TFT_RST Reset
         40000000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/espressif/boards/hiibot_iots2/board.c b/ports/espressif/boards/hiibot_iots2/board.c
@@ -64,7 +64,7 @@ static void display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO35),    // DC
         MP_OBJ_FROM_PTR(&pin_GPIO36),    // CS
-        NULL,           // NO RST ?
+        mp_const_none,                   // NO RST ?
         40000000,       // baudrate
         0,              // polarity
         0               // phase

diff --git a/ports/espressif/boards/lilygo_tdeck/board.c b/ports/espressif/boards/lilygo_tdeck/board.c
@@ -34,7 +34,7 @@ void board_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO11), // TFT_DC Command or data
         MP_OBJ_FROM_PTR(&pin_GPIO12), // TFT_CS Chip select
-        NULL, // TFT_RST Reset
+        mp_const_none, // TFT_RST Reset
         60000000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/espressif/boards/lilygo_twatch_2020_v3/board.c b/ports/espressif/boards/lilygo_twatch_2020_v3/board.c
@@ -48,7 +48,7 @@ static void display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO27),    // DC
         MP_OBJ_FROM_PTR(&pin_GPIO5),     // CS
-        NULL,           // RST
+        mp_const_none,           // RST
         24000000,       // baudrate
         0,              // polarity
         0               // phase

diff --git a/ports/espressif/boards/lilygo_twatch_s3/board.c b/ports/espressif/boards/lilygo_twatch_s3/board.c
@@ -110,7 +110,7 @@ void board_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO38),    // DC
         MP_OBJ_FROM_PTR(&pin_GPIO12),    // CS
-        NULL,           // RST
+        mp_const_none,           // RST
         40000000,       // baudrate
         0,              // polarity
         0               // phase

diff --git a/ports/espressif/boards/m5stack_core2/board.c b/ports/espressif/boards/m5stack_core2/board.c
@@ -320,7 +320,7 @@ static bool display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO15),    // DC
         MP_OBJ_FROM_PTR(&pin_GPIO5),     // CS
-        MP_OBJ_NULL,           // RST
+        mp_const_none,           // RST
         32000000,       // baudrate
         0,              // polarity
         0               // phase

diff --git a/ports/espressif/boards/m5stack_cores3/board.c b/ports/espressif/boards/m5stack_cores3/board.c
@@ -47,7 +47,7 @@ static bool display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO35),    // DC
         MP_OBJ_FROM_PTR(&pin_GPIO3),     // CS
-        MP_OBJ_NULL,           // RST
+        mp_const_none,           // RST
         40000000,       // baudrate
         0,              // polarity
         0               // phase

diff --git a/ports/espressif/boards/m5stack_cores3_se/board.c b/ports/espressif/boards/m5stack_cores3_se/board.c
@@ -48,7 +48,7 @@ static bool display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO35),    // DC
         MP_OBJ_FROM_PTR(&pin_GPIO3),     // CS
-        NULL,           // RST
+        mp_const_none,           // RST
         40000000,       // baudrate
         0,              // polarity
         0               // phase

diff --git a/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/board.c b/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/board.c
@@ -0,0 +1,26 @@
+// This file is part of the CircuitPython project: https://circuitpython.org
+//
+// SPDX-FileCopyrightText: Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
+#include "supervisor/board.h"
+#include "mpconfigboard.h"
+#include "shared-bindings/microcontroller/Pin.h"
+#include "driver/gpio.h"
+
+void board_init(void) {
+    reset_board();
+}
+
+void reset_board(void) {
+    // Turn on I2C power by default.
+    gpio_set_direction(14, GPIO_MODE_DEF_OUTPUT);
+    gpio_set_level(14, true);
+
+    // Turn on SD power by default
+    gpio_set_direction(3, GPIO_MODE_DEF_OUTPUT);
+    gpio_set_level(3, true);
+}
+
+// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.
diff --git a/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/mpconfigboard.h b/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/mpconfigboard.h
@@ -0,0 +1,36 @@
+// This file is part of the CircuitPython project: https://circuitpython.org
+//
+// SPDX-FileCopyrightText: Copyright (c) 2019 Scott Shawcroft for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+// Micropython setup
+
+#define MICROPY_HW_BOARD_NAME       "NHB Systems JL401-S3 4MB Flash 2MB PSRAM"
+#define MICROPY_HW_MCU_NAME         "ESP32S3"
+
+#define MICROPY_HW_NEOPIXEL (&pin_GPIO1)
+#define CIRCUITPY_STATUS_LED_POWER (&pin_GPIO2)
+
+// #define MICROPY_HW_LED_STATUS (&pin_GPIO13)
+
+#define DEFAULT_I2C_BUS_SCL (&pin_GPIO48)
+#define DEFAULT_I2C_BUS_SDA (&pin_GPIO47)
+
+#define DEFAULT_SPI_BUS_SCK (&pin_GPIO12)
+#define DEFAULT_SPI_BUS_MOSI (&pin_GPIO11)
+#define DEFAULT_SPI_BUS_MISO (&pin_GPIO13)
+
+#define DEFAULT_UART_BUS_RX (&pin_GPIO18)
+#define DEFAULT_UART_BUS_TX (&pin_GPIO17)
+
+#define DOUBLE_TAP_PIN (&pin_GPIO38)
+
+#define DEFAULT_SD_SCK (&pin_GPIO12)
+#define DEFAULT_SD_MOSI (&pin_GPIO11)
+#define DEFAULT_SD_MISO (&pin_GPIO13)
+#define DEFAULT_SD_CS (&pin_GPIO10)
+#define DEFAULT_SD_CARD_DETECT (&pin_GPIO9)
+#define DEFAULT_SD_CARD_INSERTED true
diff --git a/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/mpconfigboard.mk b/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/mpconfigboard.mk
@@ -0,0 +1,14 @@
+USB_VID = 0x303A
+USB_PID = 0x834A
+USB_PRODUCT = "NHB Systems JL401-S3 4MB Flash 2MB PSRAM"
+USB_MANUFACTURER = "NHB Systems"
+
+IDF_TARGET = esp32s3
+
+CIRCUITPY_ESP_FLASH_SIZE = 4MB
+CIRCUITPY_ESP_FLASH_MODE = qio
+CIRCUITPY_ESP_FLASH_FREQ = 80m
+
+CIRCUITPY_ESP_PSRAM_SIZE = 2MB
+CIRCUITPY_ESP_PSRAM_MODE = qio
+CIRCUITPY_ESP_PSRAM_FREQ = 80m
diff --git a/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/pins.c b/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/pins.c
@@ -0,0 +1,89 @@
+// This file is part of the CircuitPython project: https://circuitpython.org
+//
+// SPDX-FileCopyrightText: Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
+#include "shared-bindings/board/__init__.h"
+
+static const mp_rom_map_elem_t board_module_globals_table[] = {
+    CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
+
+    { MP_ROM_QSTR(MP_QSTR_BUTTON), MP_ROM_PTR(&pin_GPIO0) },
+    { MP_ROM_QSTR(MP_QSTR_BOOT0), MP_ROM_PTR(&pin_GPIO0) },
+    { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_GPIO0) },
+
+    { MP_ROM_QSTR(MP_QSTR_NEOPIXEL), MP_ROM_PTR(&pin_GPIO1) },
+    { MP_ROM_QSTR(MP_QSTR_NEOPIXEL_POWER), MP_ROM_PTR(&pin_GPIO2) },
+
+    { MP_ROM_QSTR(MP_QSTR_SD_PWR), MP_ROM_PTR(&pin_GPIO3)},
+    { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_GPIO3) },
+    { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_GPIO4) },
+
+    { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_GPIO5) },
+    { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_GPIO6) },
+
+    { MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_GPIO7) },
+
+    { MP_ROM_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_GPIO8) },
+    { MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_GPIO8) },
+    { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_GPIO9) },
+
+
+    // { MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO13) },
+    // { MP_ROM_QSTR(MP_QSTR_L), MP_ROM_PTR(&pin_GPIO13) },
+
+    { MP_ROM_QSTR(MP_QSTR_I2C_POWER), MP_ROM_PTR(&pin_GPIO14) },
+    { MP_ROM_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_GPIO14) },
+    { MP_ROM_QSTR(MP_QSTR_D14), MP_ROM_PTR(&pin_GPIO14) },
+
+    { MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_GPIO15) },
+    { MP_ROM_QSTR(MP_QSTR_D15), MP_ROM_PTR(&pin_GPIO15) },
+
+    { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_GPIO16) },
+    { MP_ROM_QSTR(MP_QSTR_D16), MP_ROM_PTR(&pin_GPIO16) },
+
+    { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_GPIO17) },
+    { MP_ROM_QSTR(MP_QSTR_D17), MP_ROM_PTR(&pin_GPIO17) },
+
+    { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_GPIO18) },
+    { MP_ROM_QSTR(MP_QSTR_D18), MP_ROM_PTR(&pin_GPIO18) },
+
+    { MP_ROM_QSTR(MP_QSTR_D21), MP_ROM_PTR(&pin_GPIO21) },
+
+    { MP_OBJ_NEW_QSTR(MP_QSTR_SD_CS), MP_ROM_PTR(&pin_GPIO10) },
+    { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_GPIO10) },
+
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_GPIO11) },
+    { MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_GPIO11) },
+
+    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_GPIO12) },
+    { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_GPIO12) },
+
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_GPIO13) },
+    { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_GPIO13) },
+
+    // D33 to D36 used for AD7124 SPI
+    { MP_ROM_QSTR(MP_QSTR_D33), MP_ROM_PTR(&pin_GPIO33) },
+    { MP_ROM_QSTR(MP_QSTR_D34), MP_ROM_PTR(&pin_GPIO34) },
+    { MP_ROM_QSTR(MP_QSTR_D35), MP_ROM_PTR(&pin_GPIO35) },
+    { MP_ROM_QSTR(MP_QSTR_D36), MP_ROM_PTR(&pin_GPIO36) },
+
+    { MP_ROM_QSTR(MP_QSTR_D37), MP_ROM_PTR(&pin_GPIO37) },
+    // { MP_ROM_QSTR(MP_QSTR_D38), MP_ROM_PTR(&pin_GPIO38) },
+    { MP_ROM_QSTR(MP_QSTR_D39), MP_ROM_PTR(&pin_GPIO39) },
+
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO43) },
+    { MP_ROM_QSTR(MP_QSTR_D43), MP_ROM_PTR(&pin_GPIO43) },
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO44) },
+    { MP_ROM_QSTR(MP_QSTR_D44), MP_ROM_PTR(&pin_GPIO44) },
+
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO47) },
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO48) },
+
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+    { MP_ROM_QSTR(MP_QSTR_STEMMA_I2C), MP_ROM_PTR(&board_i2c_obj) },
+    { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
+    { MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) }
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
diff --git a/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/sdkconfig b/ports/espressif/boards/nhbsystems_jl401_4mbflash_2mbpsram/sdkconfig
@@ -0,0 +1,14 @@
+#
+# Espressif IoT Development Framework Configuration
+#
+#
+# Component config
+#
+#
+# LWIP
+#
+# end of LWIP
+
+# end of Component config
+
+# end of Espressif IoT Development Framework Configuration
diff --git a/ports/espressif/boards/sunton_esp32_2424S012/board.c b/ports/espressif/boards/sunton_esp32_2424S012/board.c
@@ -107,7 +107,7 @@ static void display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO2),    // DC
         MP_OBJ_FROM_PTR(&pin_GPIO10),     // CS
-        MP_OBJ_NULL,           // RST
+        mp_const_none,           // RST
         80000000,       // baudrate
         0,              // polarity
         0               // phase

diff --git a/ports/espressif/boards/sunton_esp32_2432S024C/board.c b/ports/espressif/boards/sunton_esp32_2432S024C/board.c
@@ -53,7 +53,7 @@ static void display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO2), // TFT_DC Command or data
         MP_OBJ_FROM_PTR(&pin_GPIO15), // TFT_CS Chip select
-        MP_OBJ_NULL, // TFT_RST Reset
+        mp_const_none, // TFT_RST Reset
         6000000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/espressif/boards/sunton_esp32_2432S028/board.c b/ports/espressif/boards/sunton_esp32_2432S028/board.c
@@ -53,7 +53,7 @@ static void display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO2), // TFT_DC Command or data
         MP_OBJ_FROM_PTR(&pin_GPIO15), // TFT_CS Chip select
-        MP_OBJ_NULL, // TFT_RST Reset
+        mp_const_none, // TFT_RST Reset
         6000000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/espressif/boards/sunton_esp32_2432S032C/board.c b/ports/espressif/boards/sunton_esp32_2432S032C/board.c
@@ -45,7 +45,7 @@ static void display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO2),  // TFT_DC
         MP_OBJ_FROM_PTR(&pin_GPIO15),  // TFT_CS
-        MP_OBJ_NULL,  // TFT_RST
+        mp_const_none,  // TFT_RST
         26600000, // Baudrate
         0, // Polarity
         0 // Phase

diff --git a/ports/espressif/boards/vidi_x/board.c b/ports/espressif/boards/vidi_x/board.c
@@ -54,7 +54,7 @@ void board_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO21), // TFT_DC Command or data
         MP_OBJ_FROM_PTR(&pin_GPIO5), // TFT_CS Chip select
-        MP_OBJ_NULL, // TFT_RST Reset
+        mp_const_none, // TFT_RST Reset
         40000000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/nordic/boards/espruino_banglejs2/board.c b/ports/nordic/boards/espruino_banglejs2/board.c
@@ -9,7 +9,6 @@
 #include "mpconfigboard.h"
 
 #include "shared-bindings/busio/SPI.h"
-#include "shared-bindings/fourwire/FourWire.h"
 #include "shared-bindings/framebufferio/FramebufferDisplay.h"
 #include "shared-bindings/sharpdisplay/SharpMemoryFramebuffer.h"
 #include "shared-module/displayio/__init__.h"

diff --git a/ports/nordic/boards/hiibot_bluefi/board.c b/ports/nordic/boards/hiibot_bluefi/board.c
@@ -36,7 +36,7 @@ void board_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_P0_27), // TFT_DC Command or data
         MP_OBJ_FROM_PTR(&pin_P0_05), // TFT_CS Chip select
-        MP_OBJ_NULL, // no  TFT_RST Reset
+        mp_const_none, // no  TFT_RST Reset
         // &pin_P1_14, // TFT_RST Reset
         60000000, // Baudrate
         0, // Polarity

diff --git a/ports/raspberrypi/boards/adafruit_floppsy_rp2040/board.c b/ports/raspberrypi/boards/adafruit_floppsy_rp2040/board.c
@@ -36,7 +36,7 @@ void board_init(void) {
         spi,
         MP_OBJ_FROM_PTR(CIRCUITPY_BOARD_TFT_DC),
         MP_OBJ_FROM_PTR(CIRCUITPY_BOARD_TFT_CS),
-        MP_OBJ_NULL, // TFT_RESET Reset
+        mp_const_none, // TFT_RESET Reset
         40000000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/raspberrypi/boards/heiafr_picomo_v2/board.c b/ports/raspberrypi/boards/heiafr_picomo_v2/board.c
@@ -53,7 +53,7 @@ void board_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO16), // TFT_DC Command or data
         MP_OBJ_FROM_PTR(&pin_GPIO17), // TFT_CS Chip select
-        MP_OBJ_NULL, // TFT_RST Reset
+        mp_const_none, // TFT_RST Reset
         62500000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/raspberrypi/boards/heiafr_picomo_v3/board.c b/ports/raspberrypi/boards/heiafr_picomo_v3/board.c
@@ -53,7 +53,7 @@ void board_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO16), // TFT_DC Command or data
         MP_OBJ_FROM_PTR(&pin_GPIO17), // TFT_CS Chip select
-        MP_OBJ_NULL, // TFT_RST Reset
+        mp_const_none, // TFT_RST Reset
         62500000, // Baudrate
         0, // Polarity
         0); // Phase

diff --git a/ports/raspberrypi/boards/lilygo_t_display_rp2040/board.c b/ports/raspberrypi/boards/lilygo_t_display_rp2040/board.c
@@ -65,7 +65,7 @@ static void display_init(void) {
         spi,
         MP_OBJ_FROM_PTR(&pin_GPIO1),     // DC
         MP_OBJ_FROM_PTR(&pin_GPIO5),     // CS
-        MP_OBJ_NULL,           // RST (Reset pin tie to 0, do not set here)
+        mp_const_none,                   // RST (Reset pin tie to 0, do not set here)
         40000000,       // baudrate
         1,              // polarity
         0               // phase