diff --git a/firmware/boards/f1_dave/io/io_pins.h b/firmware/boards/f1_dave/io/io_pins.h
new file mode 100644
index 0000000..50fa080
--- /dev/null
+++ b/firmware/boards/f1_dave/io/io_pins.h
@@ -0,0 +1,12 @@
+#pragma once
+
+// TODO: is this correct?
+
+#define BLUE_LED_PORT GPIOB
+#define BLUE_LED_PIN 5
+
+#define GREEN_LED_PORT GPIOB
+#define GREEN_LED_PIN 6
+
+#define NERNST_ESR_DRIVER_PORT GPIOB
+#define NERNST_ESR_DRIVER_PIN 7