From cfe2763aa63ab59878842f915c4922741408008d Mon Sep 17 00:00:00 2001
From: Neil Smith <neil.git@njae.me.uk>
Date: Thu, 27 Oct 2016 15:24:15 +0100
Subject: [PATCH] Duplex communication

---
 radio_test/radio_send_and_receive_a.py | 57 ++++++++++++++++++++++++++
 radio_test/radio_send_and_receive_c.py | 57 ++++++++++++++++++++++++++
 2 files changed, 114 insertions(+)
 create mode 100644 radio_test/radio_send_and_receive_a.py
 create mode 100644 radio_test/radio_send_and_receive_c.py

diff --git a/radio_test/radio_send_and_receive_a.py b/radio_test/radio_send_and_receive_a.py
new file mode 100644
index 0000000..c977e11
--- /dev/null
+++ b/radio_test/radio_send_and_receive_a.py
@@ -0,0 +1,57 @@
+from microbit import *
+import radio
+
+A_IMAGE = Image('09909:'
+                '90090:'
+                '99990:'
+                '90090:'
+                '90090')
+
+B_IMAGE = Image('99909:'
+                '90090:'
+                '99900:'
+                '90090:'
+                '99900')
+
+C_IMAGE = Image('00009:'
+                '09990:'
+                '90000:'
+                '90000:'
+                '09990')
+
+D_IMAGE = Image('00009:'
+                '00009:'
+                '09999:'
+                '90009:'
+                '09999')
+
+images = {'a': A_IMAGE, 'b': B_IMAGE, 'c': C_IMAGE, 'd': D_IMAGE}
+
+display.scroll('Press', wait=False, loop=True)
+last_message_time = None
+
+radio.on()
+
+def send(message):
+        radio.send(message)
+        return running_time()
+
+while True:
+    message = radio.receive()    
+    if message:
+        last_message_time = running_time()
+        if message in images:
+            display_image = images[message]
+
+    if button_a.was_pressed():
+        display_image = A_IMAGE
+        last_message_time = send('a')
+    if button_b.was_pressed():
+        display_image = B_IMAGE
+        last_message_time = send('b')
+
+    if last_message_time:
+        dimness = (running_time() - last_message_time) / 500
+        if dimness > 9: dimness = 9
+        display.show(display_image / dimness , wait=False)
+        
\ No newline at end of file
diff --git a/radio_test/radio_send_and_receive_c.py b/radio_test/radio_send_and_receive_c.py
new file mode 100644
index 0000000..ffbcb3d
--- /dev/null
+++ b/radio_test/radio_send_and_receive_c.py
@@ -0,0 +1,57 @@
+from microbit import *
+import radio
+
+A_IMAGE = Image('09909:'
+                '90090:'
+                '99990:'
+                '90090:'
+                '90090')
+
+B_IMAGE = Image('99909:'
+                '90090:'
+                '99900:'
+                '90090:'
+                '99900')
+
+C_IMAGE = Image('00009:'
+                '09990:'
+                '90000:'
+                '90000:'
+                '09990')
+
+D_IMAGE = Image('00009:'
+                '00009:'
+                '09999:'
+                '90009:'
+                '09999')
+
+images = {'a': A_IMAGE, 'b': B_IMAGE, 'c': C_IMAGE, 'd': D_IMAGE}
+
+display.scroll('Press', wait=False, loop=True)
+last_message_time = None
+
+radio.on()
+
+def send(message):
+        radio.send(message)
+        return running_time()
+
+while True:
+    message = radio.receive()    
+    if message:
+        last_message_time = running_time()
+        if message in images:
+            display_image = images[message]
+
+    if button_a.was_pressed():
+        display_image = C_IMAGE
+        last_message_time = send('c')
+    if button_b.was_pressed():
+        display_image = D_IMAGE
+        last_message_time = send('d')
+
+    if last_message_time:
+        dimness = (running_time() - last_message_time) / 500
+        if dimness > 9: dimness = 9
+        display.show(display_image / dimness , wait=False)
+        
\ No newline at end of file
-- 
2.34.1