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https://github.com/rivsgremxry/raspberry-esp8266
Documentation and code for setting up Flask web server on Raspberry Pi and sending data using ESP8266 and DTH11 sensor
https://github.com/rivsgremxry/raspberry-esp8266
dht11 esp8266 flask-application raspberry-pi-3
Last synced: 27 days ago
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Documentation and code for setting up Flask web server on Raspberry Pi and sending data using ESP8266 and DTH11 sensor
- Host: GitHub
- URL: https://github.com/rivsgremxry/raspberry-esp8266
- Owner: rivsgremxry
- License: mit
- Created: 2024-02-06T09:55:24.000Z (9 months ago)
- Default Branch: main
- Last Pushed: 2024-02-19T19:09:43.000Z (9 months ago)
- Last Synced: 2024-09-27T10:21:13.047Z (about 1 month ago)
- Topics: dht11, esp8266, flask-application, raspberry-pi-3
- Language: Python
- Homepage:
- Size: 807 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# raspberry-esp8266
This is a small project to use a combination of ESP8266 and Raspberry Pi to obtain data on humidity and temperature in an apartment and output it to a web server.
Below are instructions for those who want to repeat this project.
`The project is still under development and will be improved over time. There are plans to add a separate page for managing the task scheduler, as well as more graphics for viewing changes in temperature and humidity over the course of an hour, day, week, month, etc.`
## Connecting the DHT11 sensor to ESP8266
```bash
DHT11 GND -> ESP8266 GND
DHT11 DAT -> ESP8266 D5
DHT11 VCC -> ESP8266 3V3
```
## Deployment
Installing and checking Python and pip version on Raspberry Pi
### 1. Checking the installed version of Python:
```bash
python3 --version
```
### 2. Installing Python 3.x:
```bash
sudo apt update
sudo apt install python3
sudo apt install python3-pip
```
### 3. Checking pip version:
```bash
python3 --version
```
===========================================================================================
## Installing PostgreSQL and creating a database
### 1. Install PostgreSQL on Raspberry Pi:
```bash
sudo apt update
sudo apt install postgresql postgresql-contrib
```
### 2. Creating a database and user:
```bash
sudo -u postgres psql
CREATE USER your_user WITH PASSWORD 'your_password';
CREATE DATABASE your_database;
GRANT ALL PRIVILEGES ON DATABASE your_database TO your_user;
\q
```
===========================================================================================
## Installing Flask
### 1. Installing libraries for a Flask application:
```bash
pip3 install Flask psycopg2-binary
pip3 install Flask-SQLAlchemy
pip3 install schedule
pip3 install pytz
```
===========================================================================================
## Installing git & repository cloning:
```bash
sudo apt install git
```
```bash
https://github.com/rivsgremxry/raspberry-esp8266.git
```
### 1. Setting:
```bash
Replace:
* SQLALCHEMY_DATABASE_URI to your psql user, psql password & psql database name;
* Set up the task scheduler or delete/comment it out if you don't need it.
```
### 2. Launching a Flask application:
```bash
python app.py
```
To check the functionality of the application, launch it and go to the address provided to us by the Flask application and make sure that everything works correctly
### 3. Creating a service file to autostart the application:
```bash
sudo nano /etc/systemd/system/myflaskapp.service
```
Paste the following text (replace the paths with the correct ones):
```bash
[Unit]
Description=ESP8266 Flask App Service
After=network.target
[Service]
ExecStart=/usr/bin/python3 /home/USER/flask_esp8266_app/app.py
WorkingDirectory=/home/USER/flask_esp8266_app
Restart=always
User=vitalijs.zukovs
[Install]
WantedBy=multi-user.target
```
### 4. Restart systemd:
```bash
sudo systemctl daemon-reload
```
### 5. Enable the service:
```bash
sudo systemctl enable myflaskapp.service
```
### 6. Start the service:
```bash
sudo systemctl start myflaskapp.service
```