Updated the connection between the application and the deviceHEADmaster

2 files changed, 5 insertions, 3 deletions

diff --git a/interfaces/endpoint.py b/interfaces/endpoint.py
index 15356c2..2fbf792 100755
--- a/interfaces/endpoint.py
+++ b/interfaces/endpoint.py
@@ -100,13 +100,14 @@ class EndPoint(object):
         self.queue.put((layout, title))

 

     def send(self, data: list[dict[str, str]]):

-        """ Send the data to the macropad

+        """ Send the data to the macropad. The data must be the representation

+            of a json element.

         """

         if self.state != self.STATE_CONNECTED:

             return

         try:

-            j = json.dumps( data )

-            self.connection.write(bytes(j, "utf-8"))

+            j = json.JSONEncoder().encode( data ) + "\n"

+            self.connection.write(str.encode(j))

         except Exception as e:

             print("send error", e)

             self.state = self.STATE_DISCONNECTED

diff --git a/serial_conn.py b/serial_conn.py
index a08543a..7925673 100755
--- a/serial_conn.py
+++ b/serial_conn.py
@@ -44,3 +44,4 @@ class SerialConnection(object):
         """ Write into the connection.

             Raise an exception if disconnected """

         self.s.write(content)

+        self.s.write(bytes("\n", "utf-8"))