diff --git a/src/boards/include/boards/adafruit_metro_rp2350.h b/src/boards/include/boards/adafruit_metro_rp2350.h
new file mode 100644
index 000000000..642d9c244
--- /dev/null
+++ b/src/boards/include/boards/adafruit_metro_rp2350.h
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2025 Tyeth Gundry for Adafruit Industries
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+// -----------------------------------------------------
+// NOTE: THIS HEADER IS ALSO INCLUDED BY ASSEMBLER SO
+//       SHOULD ONLY CONSIST OF PREPROCESSOR DIRECTIVES
+// -----------------------------------------------------
+
+// This header may be included by other board headers as "boards/adafruit_metro_rp2350.h"
+
+// pico_cmake_set PICO_PLATFORM=rp2350
+
+#ifndef _BOARDS_ADAFRUIT_METRO_RP2350_H
+#define _BOARDS_ADAFRUIT_METRO_RP2350_H
+
+// On some samples, the xosc can take longer to stabilize than is usual
+#ifndef PICO_XOSC_STARTUP_DELAY_MULTIPLIER
+#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
+#endif
+
+// For board detection
+#define ADAFRUIT_METRO_RP2350
+
+// --- RP2350 VARIANT ---
+#define PICO_RP2350B 1
+
+// --- "Boot0" button (check if defines correct - from macropad + assumed) ---
+#ifndef ADAFRUIT_METRO_BOOT0_PIN
+#define ADAFRUIT_METRO_BOOT0_PIN 24
+#endif
+#ifndef PICO_DEFAULT_BUTTON
+#define PICO_DEFAULT_BUTTON 24
+#endif
+
+
+// --- UART ---
+#ifndef PICO_DEFAULT_UART
+#define PICO_DEFAULT_UART 0
+#endif
+#ifndef PICO_DEFAULT_UART_TX_PIN
+#define PICO_DEFAULT_UART_TX_PIN 0
+#endif
+#ifndef PICO_DEFAULT_UART_RX_PIN
+#define PICO_DEFAULT_UART_RX_PIN 1
+#endif
+
+// --- LED ---
+#ifndef PICO_DEFAULT_LED_PIN
+#define PICO_DEFAULT_LED_PIN 23
+#endif
+
+#ifndef PICO_DEFAULT_WS2812_PIN
+#define PICO_DEFAULT_WS2812_PIN 25
+#endif
+
+// --- I2C ---
+#ifndef PICO_DEFAULT_I2C
+#define PICO_DEFAULT_I2C 1
+#endif
+#ifndef PICO_DEFAULT_I2C_SDA_PIN
+#define PICO_DEFAULT_I2C_SDA_PIN 20
+#endif
+#ifndef PICO_DEFAULT_I2C_SCL_PIN
+#define PICO_DEFAULT_I2C_SCL_PIN 21
+#endif
+
+// --- SPI ---
+// // SDIO
+// #define PIN_SD_CLK       (34u)
+// #define PIN_SD_CMD_MOSI  (35u)
+// #define PIN_SD_DAT0_MISO (36u)
+// #define PIN_SD_DAT1      (37u)
+// #define PIN_SD_DAT2      (38u)
+// #define PIN_SD_DAT3_CS   (39u)
+// #define PIN_SD_DETECT    (40u)
+// // SPI  SDCARD
+// #define __SPI0_DEVICE   spi1
+// #define PIN_SPI1_MISO  (36u)
+// #define PIN_SPI1_MOSI  (35u)
+// #define PIN_SPI1_SCK   (34u)
+// #define PIN_SPI1_SS    (39u)
+
+// #define __SPI1_DEVICE   spi0
+// #define PIN_SPI0_MISO  (28u)
+// #define PIN_SPI0_MOSI  (31u)
+// #define PIN_SPI0_SCK   (30u)
+// #define PIN_SPI0_SS    (29u)
+
+// // USB host connector
+// #define PIN_USB_HOST_DP (32u)
+// #define PIN_USB_HOST_DM (33u)
+// #define PIN_5V_EN       (29u)
+// #define PIN_5V_EN_STATE (1u)
+
+#ifndef PICO_DEFAULT_SPI
+#define PICO_DEFAULT_SPI 0
+#endif
+#ifndef PICO_DEFAULT_SPI_SCK_PIN
+#define PICO_DEFAULT_SPI_SCK_PIN 30
+#endif
+#ifndef PICO_DEFAULT_SPI_TX_PIN
+#define PICO_DEFAULT_SPI_TX_PIN 31
+#endif
+#ifndef PICO_DEFAULT_SPI_RX_PIN
+#define PICO_DEFAULT_SPI_RX_PIN 28
+#endif
+
+// --- FLASH ---
+
+#ifndef PICO_FLASH_SPI_CLKDIV
+#define PICO_FLASH_SPI_CLKDIV 2
+#endif
+
+// pico_cmake_set_default PICO_FLASH_SIZE_BYTES = (16 * 1024 * 1024)
+#ifndef PICO_FLASH_SIZE_BYTES
+#define PICO_FLASH_SIZE_BYTES (16 * 1024 * 1024)
+#endif
+
+// --- MISSING BITS ---
+// // PSRAM
+// #define RP2350_PSRAM_CS         (47u)
+// #define RP2350_PSRAM_MAX_SCK_HZ (109*1000*1000)
+#ifndef ADAFRUIT_METRO_RP2350_PSRAM_CS_PIN
+#define ADAFRUIT_METRO_RP2350_PSRAM_CS_PIN 47
+#endif
+#ifndef RP2350_PSRAM_CS
+#define RP2350_PSRAM_CS 47
+#endif
+#ifndef RP2350_PSRAM_MAX_SCK_HZ
+#define RP2350_PSRAM_MAX_SCK_HZ (109*1000*1000)
+#endif
+
+// // DVI connector
+// #define PIN_CKN (15u)
+// #define PIN_CKP (14u)
+// #define PIN_D0N (19u)
+// #define PIN_D0P (18u)
+// #define PIN_D1N (17u)
+// #define PIN_D1P (16u)
+// #define PIN_D2N (13u)
+// #define PIN_D2P (12u)
+
+
+// --- Unknown replacement bits ---
+// // pico_cmake_set_default PICO_RP2350_A2_SUPPORTED = 1
+// #ifndef PICO_RP2350_A2_SUPPORTED
+// #define PICO_RP2350_A2_SUPPORTED 1
+// #endif
+
+#endif