diff --git a/docs/nice-signals-with-fail-safe-resistors.png b/docs/nice-signals-with-fail-safe-resistors.png
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index 0000000..d28019c
Binary files /dev/null and b/docs/nice-signals-with-fail-safe-resistors.png differ
diff --git a/snippets/ENV b/snippets/ENV
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--- /dev/null
+++ b/snippets/ENV
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+export LD_LIBRARY_PATH=/home/pi/modbusmaster/pyserialext/
+export PYTHONPATH=/home/pi/modbusmaster/pyserialext/
diff --git a/snippets/test6.py b/snippets/test6.py
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--- /dev/null
+++ b/snippets/test6.py
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+from pymodbus.client.sync import ModbusSerialClient
+import RS485Ext
+import time
+
+ser=RS485Ext.RS485Ext(port='/dev/ttyAMA0', baudrate=1200, stopbits=2)
+
+client = ModbusSerialClient(method='rtu')
+client.socket = ser
+client.connect()
+
+while True:
+    try:
+        result = client.read_holding_registers(address=0x2000, count=2, unit=1)
+        print(result)
+        print(result.registers)
+    except Exception as e:
+        print("ERROR: %s" % str(e))
+    time.sleep(2)
+
+client.close()
+