https://github.com/yaacov/pyconil-2018-pymodbus
pycon pymodbus lecture
https://github.com/yaacov/pyconil-2018-pymodbus
Last synced: 2 months ago
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pycon pymodbus lecture
- Host: GitHub
- URL: https://github.com/yaacov/pyconil-2018-pymodbus
- Owner: yaacov
- License: apache-2.0
- Created: 2018-06-04T19:35:02.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2018-06-07T15:26:00.000Z (over 7 years ago)
- Last Synced: 2025-01-23T09:43:14.112Z (9 months ago)
- Language: Python
- Size: 10.2 MB
- Stars: 0
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# PyConIL-2018-pymodbus
A PyCon talk about pymodbus, we discuss the pros and cons of using serial communication in our modern publish-subscribe messaging age.
We also demo two input devices, a kitty-detector and a thermometer and one output device (led strip) to show how pymodbus can be used to query and control remote devices.
PyCon pymodbus lecture ( [Slides](https://github.com/yaacov/pyconil-2018-pymodbus/blob/master/PyModbus%20-%20PyCon%20IL%202018.pdf) )
## [kitty-detector](https://github.com/yaacov/pyconil-2018-pymodbus/tree/master/kitty-detector)
An input device based on a Raspberry pi, running Python opencv. This device outputs one integer modbus register
with posible values of 0, 1 or 2.
0 - indecate no face in device field of view.
1 - indecate a face (cat or none-cat).
2 - indecate a cat.
When detecting a cat, the kitty detector also write the cat found to disk, resolting in images like this:
http://opencv-python-tutroals.readthedocs.io/en/latest/
#### Holding registers:
```
1 - [Read only] cat detection state.
```
## [mood-lights](https://github.com/yaacov/pyconil-2018-pymodbus/tree/master/mood-lights)
An output device based on an arduino. This device emit pulsating colorful lights, pulse rate, color and elumination
are controlled view modbus registers.
https://github.com/adafruit/Adafruit_NeoPixel
https://github.com/yaacov/ArduinoModbusSlave
#### Holding registers:
```
1 - [W/R] Light pulse delay in millisecs.
2 - [W/R] Light pulse flow direction, 0 - from left to right, 1 - from right to left.
3 - [W/R] Light pulse rate, how many delay steps it will take for the pulse to reach max value.
4 - [W/R] Light Red color ratio 0..255.
5 - [W/R] Light Green color ratio 0..255.
6 - [W/R] Light Blue color ratio 0..255.
```
## [thermo](https://github.com/yaacov/pyconil-2018-pymodbus/tree/master/thermo)
An input device based on an arduino. This device mesure temperature and relative humidity.
https://github.com/adafruit/DHT-sensor-library
https://github.com/yaacov/ArduinoModbusSlave
#### Holding registers:
```
1 - [Read only] Temp in C * 100 (e.g. 17.5 C will be 1750.0 ).
1 - [Read only] Relative humidity in % * 100 (e.g. 82.3 % will be 8230.0 ).
```