talking to teensy from pi3

RobotMissions · Sep 8, 2017 · 549b3f5 · 549b3f5
1 parent 628d04d
commit 549b3f5
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Showing 2 changed files with 31 additions and 10 deletions.
diff --git a/pybowieconsole/server.py b/pybowieconsole/server.py
@@ -1,26 +1,34 @@
 import json
+import serial
 import struct
 import _thread
+import time
 
 from flask import Flask, g
 from flask import request, render_template, send_from_directory
 
+TEENSY_DEVICE = '/dev/ttyACM0'
+
+
 app = Flask(__name__, static_folder='static', static_url_path='')
 
 @app.teardown_appcontext
 def close_serial(exception):
     fd = getattr(g, 'serial_fd', None)
-    if fd is not None:
-        fd.close()
+    #print('closing serial port !!!!!!!!!!!!!!!!!!!!!!!')
+    #if fd is not None:
+    #    fd.close()
 
 def init_port():
-    g.serial_fd = open('/dev/ttyACM0', 'rb+')
+    g.serial_fd = serial.Serial(TEENSY_DEVICE)
     print("setting up logger")
     def logserial(port):
         while True:
-            data = port.read()
-            print("Logger "+":".join("{:02x}".format(ord(c)) for c in data))
-    #g.logger = thread.start_new_thread(logserial, (g.serial_fd,))
+            data = port.readline()
+            print(data)
+            time.sleep(1)
+            #print("Logger "+":".join("{:02x}".format(c) for c in data))
+    g.logger = _thread.start_new_thread(logserial, (g.serial_fd,))
 
 
 def write_command(action, cmd1, key1, value1, cmd2, key2, value2):
@@ -32,15 +40,27 @@ def write_command(action, cmd1, key1, value1, cmd2, key2, value2):
 
 
 def _write_command(port, action, cmd1, key1, value1, cmd2, key2, value2):
-    data = struct.pack('<ccBcHccBcHc', action.encode(), cmd1.encode(), key1, ',', value1, ',', cmd2.encode(), key2, ',', value2, '!')
+    data = struct.pack('<ccBcHccBcHc',
+        action.encode('ascii'),
+        cmd1.encode('ascii'),
+        key1,
+        ','.encode('ascii'),
+        value1,
+        ','.encode('ascii'),
+        cmd2.encode('ascii'),
+        key2,
+        ','.encode('ascii'),
+        value2,
+        '!'.encode('ascii')
+    )
     print("data len "+str(len(data)))
-    print(":".join("{:02x}".format(ord(c)) for c in data))
+    print(":".join("{:02x}".format(c) for c in data))
     port.write(data)
 
 
 @app.route('/bowieaction', methods=['POST'])
 def bowie_action():
-    req = json.loads(request.data)
+    req = json.loads(str(request.data, 'utf-8'))
     write_command(req['action'], req['cmd1'], int(req['key1']), int(req['val1']),
                   req['cmd2'], int(req['key2']), int(req['val2']))
     return '{"status": "ok"}'

diff --git a/setup.py b/setup.py
@@ -12,7 +12,8 @@
 
 
 requires = [
-    'flask',
+    'python3-flask',
+    'python3-serial'
 ]
 
 setup(