From d7d286556e3291aa90154d8cf1747e02c9817f65 Mon Sep 17 00:00:00 2001
From: Nis Wechselberg <enbewe@enbewe.de>
Date: Mon, 20 Nov 2017 21:06:56 +0100
Subject: [PATCH] Initial dump

---
 .gitignore                      | 74 +++++++++++++++++++++++++++++++++
 pyNetworkWS2812.py              | 56 +++++++++++++++++++++++++
 pyNetworkWS2812.sublime-project |  8 ++++
 test.py                         | 50 ++++++++++++++++++++++
 4 files changed, 188 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 pyNetworkWS2812.py
 create mode 100644 pyNetworkWS2812.sublime-project
 create mode 100644 test.py

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5dd4928
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,74 @@
+###SublimeText###
+
+# cache files for sublime text
+*.tmlanguage.cache
+*.tmPreferences.cache
+*.stTheme.cache
+
+# workspace files are user-specific
+*.sublime-workspace
+
+# project files should be checked into the repository, unless a significant
+# proportion of contributors will probably not be using SublimeText
+# *.sublime-project
+
+# sftp configuration file
+sftp-config.json
+
+
+###Python###
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.cache
+nosetests.xml
+coverage.xml
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
diff --git a/pyNetworkWS2812.py b/pyNetworkWS2812.py
new file mode 100644
index 0000000..1eff19f
--- /dev/null
+++ b/pyNetworkWS2812.py
@@ -0,0 +1,56 @@
+import os.path
+import serial
+import time
+import random
+import logging
+
+  
+port_addr = '/dev/ttyACM0'
+
+logging.warning("Staring up")
+
+if os.path.exists(port_addr):
+    port = serial.Serial(
+        port=port_addr,
+        baudrate=115200,
+        bytesize=serial.EIGHTBITS,
+        parity=serial.PARITY_NONE,
+        stopbits=serial.STOPBITS_ONE,
+        timeout=1,
+        xonxoff=False,
+        rtscts=False,
+        dsrdtr=False,
+        write_timeout=None,
+        inter_byte_timeout=None)
+
+    logging.warning("Opening port")
+
+    time.sleep(2)
+
+    logging.warning("Opened port")
+
+    val1 = random.randint(0,100)
+    val2 = random.randint(0,100)
+
+    logging.warning("Staring with values %d and %d", val1, val2)
+
+    while True:
+        val1 += random.randint(-10,10)
+        val2 += random.randint(-10,10)
+        if val1 < 0:
+            val1 = 0
+        if val1 > 100:
+            val1 = 100
+        if val2 < 0:
+            val2 = 0
+        if val2 > 100:
+            val2 = 100
+
+        message = bytearray(3)
+        message[0] = 0xFF
+        message[1] = val1
+        message[2] = val2
+
+        port.write(message)
+
+        time.sleep(0.01)
diff --git a/pyNetworkWS2812.sublime-project b/pyNetworkWS2812.sublime-project
new file mode 100644
index 0000000..24db303
--- /dev/null
+++ b/pyNetworkWS2812.sublime-project
@@ -0,0 +1,8 @@
+{
+	"folders":
+	[
+		{
+			"path": "."
+		}
+	]
+}
diff --git a/test.py b/test.py
new file mode 100644
index 0000000..5a00bf8
--- /dev/null
+++ b/test.py
@@ -0,0 +1,50 @@
+import re
+import time
+
+
+# A regular expression which separates the interesting fields and saves them in named groups
+regexp = r"""
+  \s*                     # a interface line  starts with none, one or more whitespaces
+  (?P<interface>\w+):\s+  # the name of the interface followed by a colon and spaces
+  (?P<rx_bytes>\d+)\s+    # the number of received bytes and one or more whitespaces
+  (?P<rx_packets>\d+)\s+  # the number of received packets and one or more whitespaces
+  (?P<rx_errors>\d+)\s+   # the number of receive errors and one or more whitespaces
+  (?P<rx_drop>\d+)\s+      # the number of dropped rx packets and ...
+  (?P<rx_fifo>\d+)\s+      # rx fifo
+  (?P<rx_frame>\d+)\s+     # rx frame
+  (?P<rx_compr>\d+)\s+     # rx compressed
+  (?P<rx_multicast>\d+)\s+ # rx multicast
+  (?P<tx_bytes>\d+)\s+    # the number of transmitted bytes and one or more whitespaces
+  (?P<tx_packets>\d+)\s+  # the number of transmitted packets and one or more whitespaces
+  (?P<tx_errors>\d+)\s+   # the number of transmit errors and one or more whitespaces
+  (?P<tx_drop>\d+)\s+      # the number of dropped tx packets and ...
+  (?P<tx_fifo>\d+)\s+      # tx fifo
+  (?P<tx_frame>\d+)\s+     # tx frame
+  (?P<tx_compr>\d+)\s+     # tx compressed
+  (?P<tx_multicast>\d+)\s* # tx multicast
+"""
+
+
+pattern = re.compile(regexp, re.VERBOSE)
+
+
+def get_bytes(interface_name):
+    '''returns tuple of (rx_bytes, tx_bytes) '''
+    with open('/proc/net/dev', 'r') as f:
+        a = f.readline()
+        while(a):
+            m = pattern.search(a)
+            # the regexp matched
+            # look for the needed interface and return the rx_bytes and tx_bytes
+            if m:
+                if m.group('interface') == interface_name:
+                    return (m.group('rx_bytes'),m.group('tx_bytes'))
+            a = f.readline()
+
+
+while True:
+    last_time  = time.time()
+    last_bytes = get_bytes('wlxa4db303b745e')
+    time.sleep(1)
+    now_bytes = get_bytes('wlxa4db303b745e')
+    print("rx: {} B/s, tx {} B/s".format(int(now_bytes[0]) - int(last_bytes[0]), int(now_bytes[1]) - int(last_bytes[1])))