diff --git a/src/boards/include/boards/nullbits_bit_c_pro.h b/src/boards/include/boards/nullbits_bit_c_pro.h
new file mode 100644
index 0000000..cbc287d
--- /dev/null
+++ b/src/boards/include/boards/nullbits_bit_c_pro.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2022 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+// -----------------------------------------------------
+// NOTE: THIS HEADER IS ALSO INCLUDED BY ASSEMBLER SO
+//       SHOULD ONLY CONSIST OF PREPROCESSOR DIRECTIVES
+// -----------------------------------------------------
+//
+//------------------------------------------------------------------------------------------
+// Board definition for the nullbits Bit-C PRO
+//
+// This header may be included by other board headers as "boards/nullbits_bit_c_pro.h"
+
+#ifndef _BOARDS_NULLBITS_BIT_C_PRO_H
+#define _BOARDS_NULLBITS_BIT_C_PRO_H
+
+// For board detection
+#define NULLBITS_BIT_C_PRO
+
+// 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
+
+// --- BOARD SPECIFIC ---
+#define BIT_C_PRO_LED_R_PIN 16
+#define BIT_C_PRO_LED_G_PIN 17
+#define BIT_C_PRO_LED_B_PIN 18
+
+//------------- 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 ---
+// Set the default LED to the Bit-C PRO's B led
+#ifndef PICO_DEFAULT_LED_PIN
+#define PICO_DEFAULT_LED_PIN BIT_C_PRO_LED_B_PIN
+#endif
+
+#ifndef PICO_DEFAULT_LED_PIN_INVERTED
+#define PICO_DEFAULT_LED_PIN_INVERTED 1
+#endif
+// no PICO_DEFAULT_WS2812_PIN
+
+//------------- I2C -------------//
+#ifndef PICO_DEFAULT_I2C
+#define PICO_DEFAULT_I2C 0
+#endif
+
+#ifndef PICO_DEFAULT_I2C_SDA_PIN
+#define PICO_DEFAULT_I2C_SDA_PIN 2
+#endif
+
+#ifndef PICO_DEFAULT_I2C_SCL_PIN
+#define PICO_DEFAULT_I2C_SCL_PIN 3
+#endif
+
+//------------- SPI -------------//
+#ifndef PICO_DEFAULT_SPI
+#define PICO_DEFAULT_SPI 0
+#endif
+
+#ifndef PICO_DEFAULT_SPI_TX_PIN
+#define PICO_DEFAULT_SPI_TX_PIN 23
+#endif
+
+#ifndef PICO_DEFAULT_SPI_RX_PIN
+#define PICO_DEFAULT_SPI_RX_PIN 20
+#endif
+
+#ifndef PICO_DEFAULT_SPI_SCK_PIN
+#define PICO_DEFAULT_SPI_SCK_PIN 22
+#endif
+
+#ifndef PICO_DEFAULT_SPI_CSN_PIN
+#define PICO_DEFAULT_SPI_CSN_PIN 21
+#endif
+
+//------------- FLASH -------------//
+
+// Best performance/compatibility with selected flash
+#define PICO_BOOT_STAGE2_CHOOSE_W25X10CL 1
+
+#ifndef PICO_FLASH_SPI_CLKDIV
+#define PICO_FLASH_SPI_CLKDIV 2
+#endif
+
+// Bit-C PRO has 4MB SPI flash
+#ifndef PICO_FLASH_SIZE_BYTES
+#define PICO_FLASH_SIZE_BYTES (4 * 1024 * 1024)
+#endif
+
+// All boards have B1+ RP2040
+#ifndef PICO_RP2040_B0_SUPPORTED
+#define PICO_RP2040_B0_SUPPORTED 0
+#endif
+
+#endif