This is a telegram bot hosted by a Raspberry Pi equipped with a temperature and humidity sensor. The bot is capable of sending plots and readings.

Last update: May 22, 2022

Overview

raspy-temperature-bot

This is a telegram bot hosted by a Raspberry Pi equipped with a temperature and humidity sensor. The bot is capable of sending plots and readings.

Structure

This project is composed of 3 main files:

bot.py is used to host the telegram bot.
graph.py contains the Graph class, used to make graphs.
sensor.py contains the TemperatureSensor class, used to write and read from the sqlite3 database, as well as the function that reads the temperature and humidity values from the sensor.

bot.py will call both the Graph and TemperatureSensor classes.

Installation

Dependencies

Raspberry Pi setup

To make this project i used a Raspberry Pi Zero W with an AM2302 temperature and humidity sensor.

The humidity sensor has 3 pins:

DATA, connected to the GPIO 4 port, it sends the readings to the Raspberry Pi.
GROUND, connected to one of the ground ports.
VCC, connected to one of the 5V ports.

Once your sensor is connected to your Raspberry Pi, go ahead and proceed to install a clean version of Raspberry Pi OS Lite.

raspy-temperature-bot installation

To install raspy-temperature-bot:

Ssh into your Raspberry Pi

ssh [email protected]

Clone the repository

git clone https://github.com/Kirgnition/raspy-temperature-bot.git

cd into the repository and install the requirements.

cd ./raspy-temperature-bot
pip3 install -r ./requirements.txt

Paste your bot token in the TOKEN.py file.

Create a service for the temperature sensor:

Create a file called temperature_sensor.service:

sudo nano /etc/systemd/system/temperature_sensor.service

Paste the following:

[Unit]
Description=ROT13 demo service
After=network.target
StartLimitIntervalSec=0

[Service]
Type=simple
Restart=always
RestartSec=1
User=username
ExecStart=python3 /path/to/sensor.py

[Install]
WantedBy=multi-user.target

Set your username after User= and the path to sensor.py after ExecStart=.

Enable the service by issuing on the terminal:
```
systemctl start temperature_sensor.service
systemctl enable temperature_sensor.service
```
From the moment you start the service a reading will be taken by the sensor every 5 minutes and saved in a sqlite3 database.

Create a service for the telegram bot in an analogous way.

Your bot should be now active, in case of restart both the bot and the sensor will start automatically.

Usage

Once the bot is installed and running, send the /start command on telegram to receive the list of available commands.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

License

MIT

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Comments

'generator' object is not subscriptable

Hi, in the log-file I get some TypeErrors, for example:

File "/home/wjmb/raspy-temperature-bot/graph.py", line 50, in make_graph
    datemin = dates[0]
TypeError: 'generator' object is not subscriptable

or:

File "/home/wjmb/raspy-temperature-bot/bot.py", line 53, in last_readings
    timestr = data.dates[0].datetime.strftime('%Y/%m/%d at %H:%M')
TypeError: 'generator' object is not subscriptable

This is on a RPI4, Python version 3.9.2

opened by wjmb 19

Releases(v0.1)

v0.1(Aug 9, 2021)

The code has not been fully tested yet, there may be bugs.
Source code(tar.gz)
Source code(zip)

This is a telegram bot hosted by a Raspberry Pi equipped with a temperature and humidity sensor. The bot is capable of sending plots and readings.

Related tags

Overview

raspy-temperature-bot

Structure

Installation

Dependencies

Raspberry Pi setup

raspy-temperature-bot installation

Usage

Contributing

License

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