FREE GUIDE
FROM PSIKIT.COM
Get Started with Mesh:
Simple Local Messaging
Traditional cellular and internet-based networks rely on towers, access points, and wired uplinks. When the grid is down, these networks fail.
A local mesh uses a different approach. Devices communicate directly, device-to-device, without depending on centralized infrastructure. It’s simple, resilient, and practical.
PsiKit was created to make that capability more accessible.
Instead of asking families to research firmware, radio regions, and encryption keys, we provide thoughtfully configured kits that are ready to use.
For those who prefer to build their own, we offer this beginner-friendly tutorial for free to spread awareness and help people connect.
📶 No cell towers
🌐 No internet required
💸 No monthly fees
✅ Just practical resilience
📶 No cell towers 🌐 No internet required 💸 No monthly fees ✅ Just practical resilience
Overview
Setting up your own mesh network for simple local messaging involves four main steps: choosing a compatible Meshtastic device, installing (or “flashing”) the latest firmware, configuring your device settings and channels, and sending your first message.
This guide is based on Meshtastic, an open-source project that allows small, low-power devices to communicate over long-range radio (LoRa). Meshtastic is widely used around the world and enables secure, off-grid messaging without relying on cellular service or internet access.
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Choose a Device
Select a pre-assembled Meshtastic device with a built-in screen and controls. We recommend the Wio Tracker L1 for its joystick navigation and on-device messaging.
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Update Firmware
Install the latest Meshtastic software on your device – a process commonly called “flashing firmware” – to ensure you have the newest features and improvements.
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Set Up Device
Use the Meshtastic app to configure your region, set up your channels, and apply encryption so your devices can communicate securely.
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Send Your First Message
Compose and send a message either directly on the device using the joystick-driven keyboard, or through the Meshtastic app on your phone.
Choosing a Device
The first step is selecting a compatible Meshtastic device.
There are many options available, ranging from small, screenless boards to larger units with built-in displays and keyboards. For most people, we recommend starting with a device that works both as a standalone messenger and with the Meshtastic app on a phone.
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We recommend the Seeed Studio Wio Tracker L1.
It strikes the right balance between simplicity, portability, and cost.
The Wio Tracker L1 includes:
A built-in screen
Physical joystick controls
On-device message composition
Rechargeable battery
Full compatibility with the Meshtastic mobile app
This means you can send and receive messages directly on the device — even without a phone — while still having the option to use the Meshtastic app for faster typing and advanced configuration.
For beginners, that flexibility is ideal.
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Meshtastic supports a wide range of hardware. You may encounter:
Devices with built-in keyboards
These offer full typing directly on the device. However, they tend to be more expensive and are often reviewed as bulky or less polished. For most families, they aren’t necessary.
Small, screenless devices
These are compact and affordable but require a companion device (like an iPhone or Android phone) to read and send messages. They work well for certain setups but may not be ideal as a standalone family communicator.
Solar-powered relay nodes
These are designed to be mounted outdoors, often on rooftops or elevated areas, to extend network range. They’re excellent additions once your network is established, but not required to get started.
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If you’re new to mesh networking, begin with a standalone device like the Wio Tracker L1. It gives you immediate, practical functionality while leaving room to expand later.
Once you’ve chosen your device, the next step is installing the latest firmware.
Too hard to choose?
Updating Firmware
Before your device can communicate, it needs the latest Meshtastic software installed.
This software is called firmware — the operating system that runs directly on the device itself. Installing or updating it is commonly referred to as “flashing firmware.”
Despite the technical name, flashing firmware is simply the process of loading the correct software onto your device using a computer.
You only need to do this once when setting up a new device (and occasionally in the future if you choose to update).
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Your Meshtastic device
A USB cable
A computer (Mac, Windows, or Linux)
An internet connection
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Turn off the device.
Connect it to your computer using a USB cable.
Turn the device on (if required).
Your computer should recognize the device automatically.
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Meshtastic provides a browser-based tool that makes flashing simple.
Open the official Meshtastic Web Flasher in a compatible browser (Chrome or Edge recommended).
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Choose your device model (e.g., Wio Tracker L1).
Select the latest stable or recommended firmware version.
Click Flash.
You may be prompted to select the connected device from a list.
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The flashing process typically takes 1–3 minutes.
Do not disconnect the device during this time.
Once complete, the device will reboot automatically.
That’s It
Your device now has the latest Meshtastic firmware installed.
Next, you’ll configure your region and channels so your devices can communicate securely.
Setting Up Your Device
With firmware installed, the next step is configuring your device.
Most setup is done using the Meshtastic mobile app, which connects to your device over Bluetooth. While you can adjust many advanced settings, only a few are required to get started.
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Download the Meshtastic app for your iPhone or Android phone.
Open the app and allow Bluetooth access when prompted.
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Turn on your Meshtastic device.
In the app, select Add Device.
Choose your device from the Bluetooth list.
Tap to connect.
Once connected, the app will display your device information and signal status.
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Navigate to Radio Configuration → Region.
Select the correct region for your country (for example, US915 for the United States).
Choosing the correct region ensures:
• Legal operation
• Proper frequency use
• Optimal performance
Save your changes.
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Under User Settings, choose a name for your device, e.g. Home, Jane, Dad, Cabin, or Smith Relay Station.
This name will appear to others on your channel.
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Channels allow your devices to communicate privately.
Navigate to Channels.
Create or edit your primary channel.
Set a simple channel name.
Leave the default encryption enabled (recommended).
All devices must share the same channel and encryption settings to communicate.
If you’re using a PsiKit bundle, your channels are already pre-configured.
For more detailed info, visit the Meshtastic Docs.
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Some changes may require a reboot.
After saving your settings, restart the device if needed.
You’re Ready
Your device is now configured and ready to communicate.
Next, you’ll send your first message — either directly on the device using the joystick, or through the Meshtastic app for faster typing.
Sending Your First Message
With your device configured, you’re ready to send your first message.
You can do this either directly on the device using the built-in joystick, or through the Meshtastic app on your phone.
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If you’re using a device like the Wio Tracker L1, you can compose messages directly on the device.
From the main screen, navigate to Messages.
Select New Message.
Use the joystick to move across the on-screen keyboard.
Press the joystick to select each character.
Use Space, Delete, or Escape (to go back) as needed.
Highlight Send and press to transmit.
Your message will be sent to all devices on the same channel within range.
You should see confirmation on the screen once it’s delivered.
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If your device is connected to the Meshtastic app
Open the app.
Select your active channel.
Tap the message field.
Type your message.
Tap Send.
Typing on a phone is faster, but the device works independently if needed.
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When another device on your channel receives your message, it will:
Display the message
Show the sender’s device name
Emit a notification sound (if enabled
If nearby devices are part of the mesh, your message may automatically hop through them to reach devices further away.
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Send a short test message like:
“Testing my new mesh” or
“Message received?”
Have the other device reply.
If both devices can send and receive messages, your mesh network is working.
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Check:
Are both devices on the same channel?
Is the region set correctly?
Are devices within range?
Is Bluetooth connected (if using the app)?
Are batteries charged?
Try restarting both devices if needed.
Small adjustments in placement — especially near windows or higher elevation — can improve range.
Good to Go!
Your mesh network is now live.
Try bringing your device with you on your next hike or road trip, and see who replies when you broadcast a message on Channel 0, the primary (default) channel.
Next Steps
Keep devices charged. Most devices need to be recharged every 5-7 days when used lightly.
Regularly test sending and receiving. Send a short test message every week or two to be sure devices keep working and your family and friends know how to stay in touch during an unexpected phone and internet outage.
Improve Your Range. Small placement changes can significantly improve performance. Higher elevation, nearby windows, and better antennas can extend how far your messages travel.
Add a Solar-Powered Relay Node. A dedicated relay device placed in a high location can strengthen your local network and extend communication between households. A small solar-powered setup can keep a relay node running continuously, even during extended outages.
Expand Your Network. Meshtastic also supports optional features like GPS location sharing and environmental sensors – allowing your network to grow beyond messaging.
Check the Official Meshtastic Docs for more info about these advanced topics.