From 2554c4245b0225018207af8068811d510cc838ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Hru=C5=A1ka?= <ondra@ondrovo.com>
Date: Sat, 17 Feb 2018 22:30:42 +0100
Subject: [PATCH] ndir example and added pp.skip()

---
 gex/PayloadParser.py |  4 ++++
 gexync.py            |  7 +++++--
 ndir_test.py         | 26 ++++++++++++++++++++++++++
 3 files changed, 35 insertions(+), 2 deletions(-)
 mode change 100644 => 100755 gexync.py
 create mode 100644 ndir_test.py

diff --git a/gex/PayloadParser.py b/gex/PayloadParser.py
index 432c0c8..7126996 100644
--- a/gex/PayloadParser.py
+++ b/gex/PayloadParser.py
@@ -113,3 +113,7 @@ class PayloadParser:
     def blob(self, length) -> bytearray:
         """ Read a blob of given length """
         return self._slice(length)
+
+    def skip(self, nbytes:int):
+        """ Skip some bytes """
+        self.blob(nbytes)
diff --git a/gexync.py b/gexync.py
old mode 100644
new mode 100755
index 3a82712..58addcb
--- a/gexync.py
+++ b/gexync.py
@@ -1,4 +1,5 @@
 #!/bin/env python3
+
 import gex
 
 import sys
@@ -39,7 +40,7 @@ class GexIniEditor(QtGui.QMainWindow):
         syncAction.triggered.connect(self.gexSync)
 
         icon = self.style().standardIcon(QtGui.QStyle.SP_DialogOkButton)
-        persAction = QtGui.QAction(icon, 'Persist, Close', self)
+        persAction = QtGui.QAction(icon, 'Persist', self)
         persAction.setShortcut('Ctrl+P')
         persAction.triggered.connect(self.gexPersist)
 
@@ -86,6 +87,7 @@ class GexIniEditor(QtGui.QMainWindow):
 
         self.editor.setPlainText(read_ini)
         self.highlight.rehighlight()
+        self.setWindowTitle('GEX config file editor')
 
     def gexSync(self):
         new_txt = self.editor.toPlainText()
@@ -99,12 +101,13 @@ class GexIniEditor(QtGui.QMainWindow):
 
         self.editor.setPlainText(read_ini)
         self.highlight.rehighlight()
+        self.setWindowTitle('*GEX config file editor')
 
     def gexPersist(self):
         client = gex.Client(gex.TrxRawUSB(), load_units=False)
         client.ini_persist()
         client.close()
-        self.close()
+        self.setWindowTitle('GEX config file editor')
 
 if __name__ == '__main__':
     app = QtGui.QApplication(sys.argv)
diff --git a/ndir_test.py b/ndir_test.py
new file mode 100644
index 0000000..223d00c
--- /dev/null
+++ b/ndir_test.py
@@ -0,0 +1,26 @@
+import time
+
+import gex
+
+with gex.Client(gex.TrxRawUSB()) as client:
+    ser = gex.USART(client, 'ser')
+
+    buf = bytearray()
+    def decode(data, ts):
+        global buf
+        buf.extend(data)
+        if len(buf) == 9:
+            pp = gex.PayloadParser(buf, endian="big")
+            pp.skip(2)
+            print("%d ppm CO₂" % pp.u16())
+            buf = bytearray()
+        if len(buf) > 9:
+            # something went wrong, clear
+            buf = bytearray()
+
+
+    ser.listen(decode, decode=None)
+
+    while True:
+        ser.write([0xFF, 0x01, 0x86, 0, 0, 0, 0, 0, 0x79])
+        time.sleep(1)