From eccc1860d2b23988e6d1eb4ba29625812e5c95ea Mon Sep 17 00:00:00 2001
From: Robin Clark <robin48gx@gmail.com>
Date: Tue, 2 Jul 2019 09:44:06 +0100
Subject: [PATCH] Update bridge_v.c

---
 bridge_v.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/bridge_v.c b/bridge_v.c
index c1b0ff0..ee8d663 100644
--- a/bridge_v.c
+++ b/bridge_v.c
@@ -1,3 +1,23 @@
+/*
+Calculator for Bridge voltages given four resistance values
+
+     A
+   /   \
+  R1   R2
+ /       \
+ B        C
+  \      /
+   R3  R4
+     \ /
+      D
+
+5V on A
+0V on D
+voltage diff between B and C calculated
+      */
+
+
+
 #include <stdio.h>
 #include <stdlib.h>