From 29cf16b36a104c771a1ea205c5dffac3cb42c829 Mon Sep 17 00:00:00 2001
From: Christian Aurich <christian.aurich@c-aurich.de>
Date: Sun, 14 Apr 2013 21:00:03 +0200
Subject: [PATCH 1/2] quickhack: improved stability, had lockups befor this
 change - now the python module sends out a command that causes the loop to
 start again - including sending a new request

---
 arduino/arduino.py | 1 +
 prototype.pde      | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/arduino/arduino.py b/arduino/arduino.py
index ae8ec42..58f3890 100644
--- a/arduino/arduino.py
+++ b/arduino/arduino.py
@@ -8,6 +8,7 @@ class Arduino(object):
 
     def __init__(self, port, baudrate=115200):
         self.serial = serial.Serial(port, baudrate)
+        self.serial.write('99')
 
     def __str__(self):
         return "Arduino is on port %s at %d baudrate" %(self.serial.port, self.serial.baudrate)
diff --git a/prototype.pde b/prototype.pde
index db5d14a..37127aa 100644
--- a/prototype.pde
+++ b/prototype.pde
@@ -34,6 +34,10 @@ void loop() {
         case 4 :
             //read analog value
             Serial.println(analogRead(readData()));
+        case 99:
+            //just dummy to cancel the current read, needed to prevent lock when the PC side
+            //dropped the "w" that we sent
+            break;
     }
 }
 

From 65aab36b043c58e9a9b2e21f7e5af23f6c346d37 Mon Sep 17 00:00:00 2001
From: Christian Aurich <christian.aurich@c-aurich.de>
Date: Mon, 15 Apr 2013 00:26:17 +0200
Subject: [PATCH 2/2] - added break before the '99' case, just to be sure
 nothing goes wrong when the code is extended in the future - made comment
 lines shorter than 80 chars

---
 prototype.pde | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/prototype.pde b/prototype.pde
index 37127aa..524d5ae 100644
--- a/prototype.pde
+++ b/prototype.pde
@@ -33,10 +33,10 @@ void loop() {
             analogWrite(readData(), readData()); break;
         case 4 :
             //read analog value
-            Serial.println(analogRead(readData()));
+            Serial.println(analogRead(readData())); break;
         case 99:
-            //just dummy to cancel the current read, needed to prevent lock when the PC side
-            //dropped the "w" that we sent
+            //just dummy to cancel the current read, needed to prevent lock 
+            //when the PC side dropped the "w" that we sent
             break;
     }
 }
@@ -48,4 +48,4 @@ char readData() {
             return Serial.parseInt();
         }
     }
-}
+}