[Armadeus-commitlog] armadeus branch, master, updated. armadeus-7.0-2-g56934e8e1

[Julien B a. A. <ar...@us...>]

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- Log -----------------------------------------------------------------
commit 56934e8e1a1704fe9084b4e36e0d354e9f865e51
Author: Julien BOIBESSOT <jul...@ar...>
Date:   Fri Aug 10 12:23:28 2018 +0200

    [DEMOS] OPOS6UL: Add a small python server to talk with Android Bluetooth Electronics app

-----------------------------------------------------------------------

Summary of changes:
 .../bluetooth-electronics/opos6ul-server.py        | 83 ++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100755 target/demos/android/bluetooth-electronics/opos6ul-server.py

diff --git a/target/demos/android/bluetooth-electronics/opos6ul-server.py b/target/demos/android/bluetooth-electronics/opos6ul-server.py
new file mode 100755
index 000000000..5300ca5f6
--- /dev/null
+++ b/target/demos/android/bluetooth-electronics/opos6ul-server.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+
+import serial
+from time import sleep
+
+temp_file = open("/sys/class/thermal/thermal_zone0/temp")
+led_file = open("/sys/class/leds/User/brightness",'w')
+led_trigger_file = open("/sys/class/leds/User/trigger",'w')
+rfcomm = serial.Serial('/dev/rfcomm0', 9600, timeout=1)
+tty_file = open("/dev/tty1", 'w')
+stat_file =  open("/proc/stat")
+
+led_state = 0
+prev_total = 0
+prev_idle = 0
+
+def cpu_usage():
+
+	global prev_total
+	global prev_idle
+
+	line = stat_file.readline()
+	stat_file.seek(0)
+	list = line.split()
+
+	idle = int(list[3])
+	del list[0]
+	total = 0
+	for value in list:
+		total = total + int(value)
+
+	diff_idle = idle - prev_idle
+	diff_total = total - prev_total
+	diff_usage = (1000*(diff_total - diff_idle) / diff_total + 5)/10
+
+	print("CPU: %d " % diff_usage)
+
+	prev_total = total
+	prev_idle = idle
+
+	return (100-diff_usage)
+
+led_trigger_file.write("gpio")
+led_trigger_file.flush()
+
+while True:
+#	sleep(1)
+	# Temperature handling stuff:
+	temp = temp_file.read(5)
+	temp_file.seek(0)
+	temp = int(temp)
+	temp = int(temp / 1000)
+	print("temp: %d C" % temp)
+	temp_str = b'*T%d*' % temp
+	rfcomm.write(temp_str)
+
+	# Android's cmmands handling:
+	# "g" -> button release
+	# "Sxxxxxx*" -> text string receive
+	data = rfcomm.read(1)
+#	print(data)
+	if data == b'g':
+		led_state = not led_state
+		led = "%d" % led_state
+		print(led)
+		led_file.write(led)
+		led_file.flush()
+	if data == b'S':
+		text = ""
+		while True:
+			data = rfcomm.read(1)
+			if data == b'*':
+				break
+			text = text + data.decode('utf-8')
+		text = text + "\n"
+#		print(text)
+		tty_file.write(text)
+		tty_file.flush()
+
+	# CPU usage stuff
+	cpu = cpu_usage()
+	cpu_text = b'*G%d*' % cpu
+	rfcomm.write(cpu_text)


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