RoomStateSensor
Explanation:
This project was made for one reason: to notify my rommmate about my availability. I built an easy circuit using Elegoo Uno and several sensors and thought to present it to my teacher as an cplusplus project, which later on was declined as it is. Teacher, on the other hand suggested to add several features to it, so it would be acceptable for the particular course.
Features:
Controller side:
- User has for states of a room: Busy;Home;Come;Away (Can be found in the file)
- Each state is controllable with a button included in the circuit
When the button is pressed, it communicates with a Counter class, which has an overflow feature making it really scalable for more states added in future.
- Indicator LED of a particular state for tail-end with a button
- Indicating the current tempreature and humidity
Pi side:
- Reading the change of the state coming from an Arduino connected via USB
- Loading your configuration JSON file, see example here //add later
- Logging the state change during the program is running, see example here //add later
- Sending the log file after closing the program with a telegram bot NOT IMPLEMENTED
Communication:
Running the program on pi, will initialize the configuration file and check if the device is connected to the port or not. In case the Controller is connected to Pi, the Pi will send a hello signal to Controller, if the Controller is able to read the signal, it will respond to the Pi with the current state. Pi will create a new log_file (if user doesn't have one already) with a configuration data and will document the activity until the program is stopped manually or just exitted the scanning mode.
The program will have the following menu:
| Choice | Functionality |
|---|---|
| Read Configuration | Read the configuration from the file |
| Enter Configuration Manually | If you don't have a config_file, the configuration can be entered manually |
| Enter Communication Mode | Logging the activity to the file every time the state changes. |
| Exit | Exits the program |
Read Configuration requires a JSON file with a name of the device, port number and a communication speed (baud)
Enter Configuration Manually allows to enter mentioned information manually without a config_file
Enter Communication Mode requires a configuration flag to enter. Can't be entered without a configuration. After the device is initialized, reads the initial state and writes/appends to the
log_file. The mode closes the file and reopens it for appending only when the state has been changed again. This is made for the sake of autosaving the data. Mode can be ended with a press of 'q' character. The scanning is being run on a detached thread.