Tuto-Meshgram

Instal et config de Meshgram to Bridge Meshtastic and Telegram on Rpi4

This project implements a bridge between a Meshtastic node and a Telegram group chat, allowing for the exchange of messages and locations between the two platforms.

Projets alternatifs : https://github.com/search?q=meshtastic%20telegram&type=repositories

Résumé de l'installation avec prise en compte des 2 commentaires reçus par Email de Fabrice F4GXP

Créer un BOT sur télégram https://t.me/BotFather (lien a activer sur son smartphone)
Sur le Raspberry, suivre le process d’install décrit sur GitHub - gretel/meshgram https://github.com/gretel/meshgram
Modifier le fichier de config comme indiqué, en tenant compte des 2 commentaires importants entre parentheses de Fabrice)

1. Clone the repo:

 $ git clone https://github.com/gretel/meshgram.git
 $ cd meshgram

2. Set up a virtual environment:

 $ python3 -m venv venv
 $ source venv/bin/activate

3. Install dependencies:

 $ pip install -r requirements.txt

4. Configure the project: Create a config.yaml file in the config directory:

telegram:

  bot_token: "your_bot_token_here"
  chat_id: -1001234567890
  authorized_users:
    - 123456789 (# Regarder dans les logs du raspberry qui se connecte au bot, il faut alors ajouter son id ici !)

meshtastic:

  connection_type: "serial"  # or "tcp"
  device: "/dev/ttyUSB0"  # or "hostname:port" for TCP
  default_node_id: "!abcdef12" (#Ici il faut mettre “^all” si l'on souhaite que les messages telegram partent vers tous les nodes non pas à un seul)
  local_nodes:
    - "!abcdef12"
    - "!12345678"

logging:

  level: "info"
  level_telegram: "warn"
  level_httpx: "warn"
  use_syslog: false
  syslog_host: "localhost"
  syslog_port: 514
  syslog_protocol: "udp"

5. Run Meshgram:

 $ python src/meshgram.py

Telegram Commands

 /start - Start the bot and see available commands
 /help - Show help message
 /status - Check the current status of Meshgram and Meshtastic
 /bell [node_id] - Send a bell notification to a Meshtastic node
 /node [node_id] - Get information about a specific node
 /user - Get information about your Telegram user

RESTRICTED ANNEXES
FAQ/common problems : This is a collection of common questions and answers from our friendly forum.

Error message :

 Permission denied: ‘/dev/ttyUSB0’

This indicates an OS permission problem for access by your user to the USB serial port. Typically this is fixed by the following. Some Linux commands to overcome this issue.

Method 1: Add your user to the group dialout

 $ sudo usermod -a -G dialout $USER

 $ sudo usermod -a -G dialout <username>

Method 2: Another try would be to take ownership of this interface

 $ sudo su
 $ cd /dev
 $ chown <username> ttyUSB0
 $ exit

Method 3: Last you can also start your telegram bot as root (Mauvaise méthode à éviter !)

 $ sudo python3 meshmeharderbot.py

Cable Encore beaucoup de cable USB sont des mauvais cables DATA, a vérifier car parfois ils ont des disfonctionnement enc ours d’utilisation (faux contacts quand le raspberry bouge et les routines de refresh du bot telegram plantent,…)

Batterie : Efest avec 40Ah