tenma-serial 0.1.0

Serial control of tenma device

Tenma DC power supply controllers

Provides two basic controllers (tested on Linux) for a TENMA DC power supply via serial interface.

• tenmaControl (command line utility)
• gtkIndicator (GTK indicator to sit on tray)

tenmaControl

What is this?

A small command line program / library to setup a Tenma 72-2540 DC POWER SUPPLY from your computer via SERIAL.

Coming back from holidays was hard. So I spent some time with a little game (tongue). You'll find a small explanation of the code in:

https://jcastellssala.com/2017/10/31/tenma72-2540-linux-control/

Requirements

Python and the serial library:

pip install pyserial

Shortcomings:

• Cannot read current consumption. (Function implemented, does not seem to work)
• Always saves to memory 1. (Function implemented, POWER SUPPLY not behaving as expected. Restores all memories correctly though.
• The physical buttons are blocked for a while after connecting.

Usage examples

Print the Tenma version

python tenmaControl.py /dev/ttyUSB0

Set the current and the voltage

For example: 2.2 Amperes 5V:

python tenmaControl.py -c 2200 -v 5000 /dev/ttyUSB0

Turn on the channel output

python tenmaControl.py --on /dev/ttyUSB0

Turn OFF the channel output

python tenmaControl.py --off /dev/ttyUSB0

Load an existing memory

python tenmaControl.py -r 1
python tenmaControl.py --recall 2

Create a new value for a memory 4

python tenmaControl.py -c 2200 -v 5000 --save 4 /dev/ttyUSB0

Print everything

python tenmaControl.py -c 2200 -v 5000 --save 4 --verbose --debug /dev/ttyUSB0

gtkIndicator

A very simple GTK indicator to control a tenma DC power supply from a graphical desktop. Provides ON, OFF and RESET facilities. Simply start it with:

./gtkIndicator.py