dam112 changes

snippets/test6d.py

@@ -0,0 +1,25 @@
+from pymodbus.client.sync import ModbusSerialClient
+import RS485Ext
+import time
+
+ser=RS485Ext.RS485Ext(port='/dev/ttyAMA0', baudrate=1200, stopbits=1)
+
+client = ModbusSerialClient(method='rtu')
+client.socket = ser
+client.connect()
+
+v = 0
+while True:
+    if v == 0:
+        v = 1
+    else:
+        v = 0
+    try:
+        result = client.write_coil(address=0x0000, unit=4, value=v)
+        print(result)
+    except Exception as e:
+        print("ERROR: %s" % str(e))
+    time.sleep(0.5)
+
+client.close()
+