Tag Archives: python

Tenma 72-7735 DMM: Serial interface with Python

The Tenma 72-7735 is a lower end DMM that comes with quite a few handy features including an opto-isolated serial output. This serial communication is over a cable with a male db-9 rs-232 serial connector on one end and a … Continue reading

Posted in Hacks, Hardware, Projects, Python | Tagged , , , , , , , | 14 Comments

Calling a C program from a Python script

This process is made simple with Python’s subprocess module.

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Communicating with an Alien ALR-8800 RFID reader using Python’s telnetlib

Very simple script that automatically enters the default username and password for the reader. The user can then enter commands and the results will be printed to the screen. Below is an example of the program running. In this case … Continue reading

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Automated readings of an RFID tag in a metal trolley

For a college project, I’m working on an automated product identification system for trolleys used in shops. As you can see from the above picture, this would involve mounting an antenna (attached to an RFID reader) on a trolley. All … Continue reading

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