TSB Telemetry Backend Server
A gate to the IoT world for all my future projects. A tale about flask, https requests and websockets.
Features
- Clients can send data to the server
- Clients can place comands on the server which are relayed to other clients
- Data is stored in a redis data base for each user
- Clients can read data from the database
- Supports multiple parallel connections
- Fully encrypted SSL connection
- Client authorization
- Supports single action connection via https requests
- Supports permanet connection via websockets
- Compatible to UDL Universal Data Logger project
Main Components
- Flask webserver behind nginx reverse proxy running on a Hetzner cloud server
- Redis data base for data storage
- SW available for ESP32 clients for https and websocket connection
Programming languages
- Python
- C
- html
- Kotlin
The ESP32 demo board connects to the TSB and sends data packages of 10 datapoints captured with a period of 100ms (one data package is send every 1000ms). The UDL tool is checking the TBS regularly for new data. Via the calibration labels in C1 misc the user can send data to the ESP32 changing the set point for the random number generation and also the period of the data packages.
