diff --git a/ports/espressif/boards/doit_esp32_devkit_v1/board.c b/ports/espressif/boards/doit_esp32_devkit_v1/board.c
new file mode 100644
index 0000000000..164430c88c
--- /dev/null
+++ b/ports/espressif/boards/doit_esp32_devkit_v1/board.c
@@ -0,0 +1,29 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "supervisor/board.h"
+
+// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.
diff --git a/ports/espressif/boards/doit_esp32_devkit_v1/mpconfigboard.h b/ports/espressif/boards/doit_esp32_devkit_v1/mpconfigboard.h
new file mode 100644
index 0000000000..2a0dcd0104
--- /dev/null
+++ b/ports/espressif/boards/doit_esp32_devkit_v1/mpconfigboard.h
@@ -0,0 +1,45 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2022 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// Micropython setup
+
+#define MICROPY_HW_BOARD_NAME "ESP32 Devkit V1"
+#define MICROPY_HW_MCU_NAME "ESP32"
+
+#define MICROPY_HW_LED_STATUS       (&pin_GPIO2)
+
+#define CIRCUITPY_BOARD_I2C         (1)
+#define CIRCUITPY_BOARD_I2C_PIN     {{.scl = &pin_GPIO22, .sda = &pin_GPIO21}}
+
+#define CIRCUITPY_BOARD_SPI         (1)
+#define CIRCUITPY_BOARD_SPI_PIN     {{.clock = &pin_GPIO18, .mosi = &pin_GPIO23, .miso = &pin_GPIO19}}
+
+#define CIRCUITPY_BOARD_UART        (1)
+#define CIRCUITPY_BOARD_UART_PIN    {{.tx = &pin_GPIO17, .rx = &pin_GPIO16}}
+
+// UART pins attached to the USB-serial converter chip
+#define CIRCUITPY_CONSOLE_UART_TX (&pin_GPIO1)
+#define CIRCUITPY_CONSOLE_UART_RX (&pin_GPIO3)
diff --git a/ports/espressif/boards/doit_esp32_devkit_v1/mpconfigboard.mk b/ports/espressif/boards/doit_esp32_devkit_v1/mpconfigboard.mk
new file mode 100644
index 0000000000..7aa352e16e
--- /dev/null
+++ b/ports/espressif/boards/doit_esp32_devkit_v1/mpconfigboard.mk
@@ -0,0 +1,9 @@
+CIRCUITPY_CREATOR_ID =  0xB0D00000
+CIRCUITPY_CREATION_ID = 0x00320002
+
+IDF_TARGET = esp32
+
+CIRCUITPY_ESP_FLASH_MODE = dio
+CIRCUITPY_ESP_FLASH_FREQ = 40m
+CIRCUITPY_ESP_FLASH_SIZE = 4MB
+CIRCUITPY_ESP32_CAMERA = 0
diff --git a/ports/espressif/boards/doit_esp32_devkit_v1/pins.c b/ports/espressif/boards/doit_esp32_devkit_v1/pins.c
new file mode 100644
index 0000000000..78c37897ac
--- /dev/null
+++ b/ports/espressif/boards/doit_esp32_devkit_v1/pins.c
@@ -0,0 +1,46 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
+
+    // External pins are in silkscreen order, from top to bottom, left side, then right side
+    {MP_ROM_QSTR(MP_QSTR_D15), MP_ROM_PTR(&pin_GPIO15)},
+    {MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_GPIO2)},
+    {MP_ROM_QSTR(MP_QSTR_RX2), MP_ROM_PTR(&pin_GPIO16)},
+    {MP_ROM_QSTR(MP_QSTR_TX2), MP_ROM_PTR(&pin_GPIO17)},
+    {MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_GPIO5)},
+    {MP_ROM_QSTR(MP_QSTR_D18), MP_ROM_PTR(&pin_GPIO18)},
+    {MP_ROM_QSTR(MP_QSTR_D19), MP_ROM_PTR(&pin_GPIO19)},
+    {MP_ROM_QSTR(MP_QSTR_D21), MP_ROM_PTR(&pin_GPIO21)},
+    {MP_ROM_QSTR(MP_QSTR_RX0), MP_ROM_PTR(&pin_GPIO1)},
+    {MP_ROM_QSTR(MP_QSTR_TX0), MP_ROM_PTR(&pin_GPIO3)},
+    {MP_ROM_QSTR(MP_QSTR_D22), MP_ROM_PTR(&pin_GPIO22)},
+    {MP_ROM_QSTR(MP_QSTR_D23), MP_ROM_PTR(&pin_GPIO23)},
+    {MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_GPIO13)},
+    {MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_GPIO12)},
+    {MP_ROM_QSTR(MP_QSTR_D14), MP_ROM_PTR(&pin_GPIO14)},
+    {MP_ROM_QSTR(MP_QSTR_D27), MP_ROM_PTR(&pin_GPIO27)},
+    {MP_ROM_QSTR(MP_QSTR_D26), MP_ROM_PTR(&pin_GPIO26)},
+    {MP_ROM_QSTR(MP_QSTR_D25), MP_ROM_PTR(&pin_GPIO25)},
+    {MP_ROM_QSTR(MP_QSTR_D33), MP_ROM_PTR(&pin_GPIO33)},
+    {MP_ROM_QSTR(MP_QSTR_D32), MP_ROM_PTR(&pin_GPIO32)},
+    {MP_ROM_QSTR(MP_QSTR_D35), MP_ROM_PTR(&pin_GPIO35)},
+    {MP_ROM_QSTR(MP_QSTR_D34), MP_ROM_PTR(&pin_GPIO34)},
+
+    {MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO2)},
+
+    {MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO21)},
+    {MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO22)},
+
+    {MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_GPIO18)},
+    {MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_GPIO23)},
+    {MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_GPIO19)},
+
+    {MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO17)},
+    {MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO16)},
+
+    {MP_ROM_QSTR(MP_QSTR_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/doit_esp32_devkit_v1/sdkconfig b/ports/espressif/boards/doit_esp32_devkit_v1/sdkconfig
new file mode 100644
index 0000000000..6c0168c829
--- /dev/null
+++ b/ports/espressif/boards/doit_esp32_devkit_v1/sdkconfig
@@ -0,0 +1,20 @@
+CONFIG_ESP32_ECO3_CACHE_LOCK_FIX=y
+CONFIG_ESP32_SPIRAM_SUPPORT=n
+
+# Uncomment (remove ###) to send ESP_LOG  output to TX/RX pins
+### #
+### # ESP System Settings
+### #
+### CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT=y
+### # CONFIG_ESP_SYSTEM_PANIC_SILENT_REBOOT is not set
+### CONFIG_ESP_CONSOLE_UART_CUSTOM=y
+### CONFIG_ESP_CONSOLE_NONE is not set
+### CONFIG_ESP_CONSOLE_UART=y
+### CONFIG_ESP_CONSOLE_UART_CUSTOM_NUM_0=y
+### # CONFIG_ESP_CONSOLE_UART_CUSTOM_NUM_1 is not set
+### CONFIG_ESP_CONSOLE_UART_NUM=0
+### CONFIG_ESP_CONSOLE_UART_TX_GPIO=17
+### CONFIG_ESP_CONSOLE_UART_RX_GPIO=16
+### CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200
+### # CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5 is not set
+### # end of ESP System Settings
diff --git a/ports/espressif/common-hal/pulseio/PulseIn.c b/ports/espressif/common-hal/pulseio/PulseIn.c
index 41c1dcb189..bb6ef7f975 100644
--- a/ports/espressif/common-hal/pulseio/PulseIn.c
+++ b/ports/espressif/common-hal/pulseio/PulseIn.c
@@ -41,7 +41,12 @@ STATIC void update_internal_buffer(pulseio_pulsein_obj_t *self) {
         length /= 4;
         for (size_t i = 0; i < length; i++) {
             uint16_t pos = (self->start + self->len) % self->maxlen;
-            self->buffer[pos] = items[i].duration0 * 3;
+            uint32_t val = items[i].duration0 * 3;
+            // make sure the value returned does not exceed the max uint16 value.
+            if (val > 65535) {
+                val = 65535;
+            }
+            self->buffer[pos] = (uint16_t)val;
             if (self->len < self->maxlen) {
                 self->len++;
             } else {
@@ -50,7 +55,11 @@ STATIC void update_internal_buffer(pulseio_pulsein_obj_t *self) {
             // Check if second item exists
             if (items[i].duration1) {
                 pos = (self->start + self->len) % self->maxlen;
-                self->buffer[pos] = items[i].duration1 * 3;
+                val = items[i].duration1 * 3;
+                if (val > 65535) {
+                    val = 65535;
+                }
+                self->buffer[pos] = (uint16_t)val;
                 if (self->len < self->maxlen) {
                     self->len++;
                 } else {