====Meshtastic====

===Mestastic Linux===

Using the [[interfaces:wavesharehat|Wareshare Hat]] for RPi.

==Raspberry Pi Zero 2W / Pi 3B==

__Kernel configuration__

<code>
dtparam=spi=on
dtoverlay=spi0-0cs
enable_uart=1
</code>

__Kernel command line__

<code>
console=tty1 root=PARTUUID=xxxxxxxx-02 rootfstype=ext4 fsck.repair=yes rootwait cfg80211.ieee80211_regdom=GB
</code>

__Meshtastic__

<code>
Lora:
  Module: sx1262  # Waveshare SX126X XXXM
  DIO2_AS_RF_SWITCH: true
  CS: 21
  IRQ: 16
  Busy: 20
  Reset: 18
  
GPS:
  SerialPath: /dev/ttyS0
  
Logging:
  LogLevel: debug # debug, info, warn, error

Webserver:
  Port: 443 # Port for Webserver & Webservices
  RootPath: /usr/share/doc/meshtasticd/web # Root Dir of WebServer
</code>

__Runit__

<code>
systemctl stop meshtasticd
systemctl disable meshtasticd
systemctl mask meshtasticd
</code>

<code>
#! /bin/bash
sleep 1

#LOG
exec 2>&1
ulimit -aH

#RUN
mkdir -p /var/lib/meshtasticd
cd /var/lib/meshtasticd
exec /sbin/meshtasticd -d /var/lib/meshtasticd -c /etc/meshtasticd/config.yaml
</code>


===Command Line Interface===

==Setup==

<code>
sudo apt install python3-full
</code>

== Install==

<code>
mkdir -p ~/.venvs
python3 -m venv ~/.venvs/meshtastic
</code>

<code>
~/.venvs/meshtastic/bin/python -m pip install pytap2
~/.venvs/meshtastic/bin/python -m pip install meshtastic
</code>

Add ~/.venvs/meshtastic/bin to $PATH

<code>
meshtastic --port /dev/ttyACM2 --set lora.region EU_868
</code>

<code>
meshtastic --port /dev/ttyACM2 --noprot
</code>

==Update==

<code>
~/.venvs/meshtastic/bin/python -m pip install --upgrade meshtastic
</code>
===Channel===

<code>
meshtastic --port /dev/ttyACM2 --ch-set name "XXX" --ch-index 1
Connected to radio
Set name to HOME
Writing modified channels to device

meshtastic --port /dev/ttyACM2 --ch-set psk base64:xxx --ch-index 1 
Connected to radio
Writing modified channels to device
</code>

===Messages===

This setup sends and receives messages on the CLI on a Pi Pico attached to /dev/ttyACM2

==Receive==

__Install__
<code>
git clone https://github.com/brad28b/meshtastic-cli-receive-text
cd meshtastic-cli-receive-text
~/.venvs/meshtastic/bin/python -m pip install -r requirements.txt
</code>

Prepend the following the each python script and edit the IP
address and/or serial port in each script.

<code>
#! /bin/bash
"exec" "`dirname $0`/python" "$0" "$@"
</code>

Copy scripts into the venv.

<code>
chmod +x *.py
cp *.py ~/.venvs/meshtastic/bin
</code>

__Listen__

<code>
read_messages_serial.py
Using serial port: /dev/ttyACM2
Initializing SerialInterface to get node info...
Node info retrieved.
Parsing node info...
Node info parsed.
Node List:
{'num': '!0342a02e', 'user': {'shortName': 'Pico'}}
{'num': '!014fdb61', 'user': {'shortName': 'RPi'}}
Subscribed to meshtastic.receive
SerialInterface setup for listening.
RPi: Hello World!
</code>

==Send==

Direct message

<code>
meshtastic --port /dev/ttyACM2 --dest \!014fdb61 --sendtext "Hi!"
</code>

Channel message

<code>
meshtastic --port /dev/ttyACM2 --ch-index 1 --sendtext "Hello!"
</code>

===Info===

These are some parameters which can be used to sniff
the LoRa radio with [[:tools:rtlsdr|RTL-SDR]].

<code>
region=EU_868, name=LongFast

freqEnd: 869.4000.250000 MHz

numChannels: 1 x 250.000kHz

Radio frequency: 869.525024
</code>

===Resources===

[[https://meshtastic.org/|Meshtastic homepage]]

[[https://meshtastic.org/docs/software/linux-native/|Meshtastic Linux]]

[[https://meshtastic.org/docs/hardware/devices/raspberry-pi/|Meshtastic Raspberry Pi Pico]]

[[https://github.com/meshtastic/firmware/releases|Meshtastic releases]]

[[https://github.com/meshtastic/network-management-client|Meshtastic network manager]]

[[https://meshtastic.org/docs/configuration/tips/|Meshtastic Tips]]

[[https://www.youtube.com/watch?v=6UwWQSTCr_I|Meshtastic Linux setup]]