diff --git a/requirements.txt b/requirements.txt
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Binary files /dev/null and b/requirements.txt differ
diff --git a/src/test/tecna.py b/src/test/tecna.py
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+++ b/src/test/tecna.py
@@ -0,0 +1,12 @@
+import pymodbus.exceptions
+from pymodbus.client.sync import ModbusSerialClient as ModbusClient
+import serial
+client = ModbusClient(method="rtu", port="COM3", stopbits=serial.STOPBITS_ONE, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, baudrate=115200, timeout=1, strict=False)
+status = client.connect()
+read_data = client.read_holding_registers(1, count=1)
+if type(read_data) is not pymodbus.exceptions.ModbusIOException:
+    for i,v in enumerate(read_data):
+        print(f"READ DATA at {i}:{v}")
+    pass
+else:
+    print("READ ERROR")
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