1 files changed, 41 insertions, 0 deletions
diff --git a/pynxc/tutorial_samples/10_semaphore.py b/pynxc/tutorial_samples/10_semaphore.py
new file mode 100644
index 0000000..3b6a765
--- /dev/null
+++ b/pynxc/tutorial_samples/10_semaphore.py
@@ -0,0 +1,41 @@
+sem=0  # make sure this one is global
+
+def task_move_square():
+    while True:
+        while (sem == 1):
+            pass
+        sem = 1
+        OnFwd(OUT_AC, 75)
+        sem = 0
+        Wait(1000)
+        
+        while sem==1:
+            pass
+        
+        sem = 1
+        
+        
+        OnRev(OUT_C, 75)
+        sem = 0
+        Wait(850)
+
+def task_submain():
+
+    SetSensor(IN_1, SENSOR_TOUCH)
+    while True:
+
+        if SENSOR_1 == 1:
+            while (sem == 1):
+                pass
+            sem = 1
+            OnRev(OUT_AC, 75); Wait(500)
+            OnFwd(OUT_A, 75); Wait(850)
+            sem = 0
+
+def main():
+
+    sem = 0
+    Precedes(task_move_square, task_submain)
+
+
+