diff --git a/boards/tau/board.mk b/boards/tau/board.mk
new file mode 100644
index 00000000..75c8a340
--- /dev/null
+++ b/boards/tau/board.mk
@@ -0,0 +1,2 @@
+CHIP_FAMILY = samd21
+CHIP_VARIANT = SAMD21E17A
diff --git a/boards/tau/board_config.h b/boards/tau/board_config.h
new file mode 100644
index 00000000..a02eb4ba
--- /dev/null
+++ b/boards/tau/board_config.h
@@ -0,0 +1,18 @@
+#ifndef BOARD_CONFIG_H
+#define BOARD_CONFIG_H
+
+#define VENDOR_NAME "Rabid Prototypes"
+#define PRODUCT_NAME "Tau"
+#define VOLUME_LABEL "TAU_BOOT"
+#define INDEX_URL "https://rabidprototypes.com/product/tau"
+#define BOARD_ID "SAMD21E17A-Tau-v0"
+
+#define USB_VID 0x230a
+#define USB_PID 0x00E9
+
+#define LED_PIN PIN_PA27
+
+// This is needed because SAMD21E17A only has 128kB of flash
+#define FLASH_NUM_ROWS 512
+
+#endif