Add support for board version reading via ADC
diff --git a/firmware/include_board/boardver_adc.h b/firmware/include_board/boardver_adc.h
new file mode 100644
index 0000000..a89d630
--- /dev/null
+++ b/firmware/include_board/boardver_adc.h
@@ -0,0 +1,3 @@
+#pragma once
+
+int get_board_version_adc(void);