From d7669ee352381f35b17bd87f5456cdaed3061590 Mon Sep 17 00:00:00 2001
From: Robert Hedman <robert.hedman@mac.com>
Date: Tue, 19 Dec 2017 13:46:18 +0100
Subject: [PATCH] updated serial send with error case

---
 src/main.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index a937a7d..aac1c42 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -164,7 +164,10 @@ fn main() {
                     // PID controller
 
                     // send voltage to motors.
-                    port.write(&message[0..message_length]).unwrap();
+                    match port.write(&message[0..message_length]) {
+                        Ok(n) => {println!("Controller: sent {} bytes to arduino!", n);},
+                        Err(e) => {println!("Controller: could not write to arduino: {}", e); },
+                    }
 
                 }
             
-- 
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