lizTheDeveloper

Meshtastic Workshop

Workshop Outcomes

By the end of the session, participants will:

1. Understand Meshtastic and mesh networking.
2. Flash and configure a Meshtastic device.
3. Send and receive messages through the network.

lizTheDeveloper

Setting Up a Meshtastic Repeater Node (Android App)

Prerequisites

• Android Device: Running Android 5.0 or higher
• Meshtastic Device: Powered on with firmware flashed
• Bluetooth Enabled: To connect to the device
• Meshtastic App Installed: Download from the Google Play Store

Steps

lizTheDeveloper

Hands-on Testing: Sending & Receiving Messages (Python CLI)

Prerequisites

• Python Installed: Version 3.x
• Pip Installed: Required for package management
• Meshtastic Python CLI Installed: pip install meshtastic
• Meshtastic Device: Connected via USB

Steps

lizTheDeveloper

Connecting to Meshtastic Device: Android App

Prerequisites

• Android Device: Running Android 5.0 or higher
• Meshtastic Device: Powered on with firmware flashed
• Bluetooth: Enabled on your Android device

Steps

1. Install Meshtastic App

lizTheDeveloper

Flashing Meshtastic Firmware: Code Path

Prerequisites

• Python: Installed on your computer
• Pip: Python package installer
• USB Cable: Appropriate for your device
• Meshtastic Device: Ensure the antenna is connected before powering on

Steps

lizTheDeveloper

Install exo on Android

1. Install Termux

2. Install a bunch of packages that don't compile from source using pkg

pkg update && pkg upgrade
pkg install git clang cmake make python numpy
pkg install libjpeg-turbo libpng libtiff libwebp eigen
pkg install libprotobuf  
pkg install ffmpeg

lizTheDeveloper

git clone -b 4.10.0 https://github.com/opencv/opencv.git
git clone -b 4.10.0 https://github.com/opencv/opencv_contrib.git   # optional
cd ./opencv
mkdir build && cd build

cmake -D CMAKE_BUILD_TYPE=Release \
      -D CMAKE_INSTALL_PREFIX=$PREFIX \
      -D CMAKE_OPENCV_VERBOSE=OFF \
      -D BUILD_SHARED_LIBS=ON \
      -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D BUILD_EXAMPLES=OFF \

lizTheDeveloper

VAR socketdev client_socket;
VAR string received_data;
VAR jointtarget target_joints;
VAR num joint_speed := 100;
VAR num joint_zone := 50;

PROC main()
    ! Create socket and bind to ABB’s IP
    SocketCreate client_socket;
    SocketBind client_socket, "192.168.125.1", 1025;

lizTheDeveloper

import socket
import json
import time
import cv2
import numpy as np
from PIL import Image

# Define connection to ABB RobotStudio
HOST = "127.0.0.1"
PORT = 5000  # Must match RAPID socket port

lizTheDeveloper

VAR socketdev server_socket;
VAR socketdev client_socket;
VAR jointtarget joint_data;
VAR string joint_data_str;
VAR num send_status;

PROC main()
    ! Create and bind server socket
    SocketCreate server_socket;
    SocketBind server_socket, "127.0.0.1", 5000;