Send messages without internet
Communicate via MeshCore without internet, WiFi or mobile network. Send messages during power outages or disasters
Why send messages without internet?
During emergencies, the internet often fails first. No WhatsApp, no email, no social media. But with MeshCore you can send messages without internet via radio signals. Perfect for disasters, power outages, or remote areas in the Netherlands.
In this guide you'll learn how to send text messages, locations and emergency calls via the mesh network. Everything completely offline, without internet or mobile network.
How to send messages without internet?
1. Connect your device via Bluetooth
Your LoRa radio connects via Bluetooth to your smartphone. No internet needed – only a local Bluetooth connection.
2. Open the MeshCore app
The app shows all available contacts and channels. You immediately see which users are reachable via the mesh network.
3. Write your message
Type your message in the app, just like WhatsApp. Keep it short and powerful – messages are limited to 237 characters.
4. Send via mesh network
Your message is sent via radio signals. If the recipient is too far away, repeaters automatically forward the message.
Types of messages you can send
💬 Text messages
Normal messages up to 237 characters. Ideal for short updates, questions, or sharing information.
📍 Share location
Share your GPS location with others. Handy during evacuations or to indicate where you are.
🆘 Emergency calls
Send an SOS signal to all users nearby. Sent with priority.
📊 Status updates
Share battery level, signal strength or other technical info with others.
Tips for messages without internet
Keep messages short
Maximum 237 characters. Be concise and clear. Every character counts.
Be patient
Messages can take 30 seconds to several minutes, depending on the number of hops.
Watch battery
Sending many messages uses more battery. Plan smart.
Test range beforehand
Test before an emergency if your messages arrive at your contacts.
Use channels smart
Public channels for general info, private messages for sensitive info.
Share location consciously
Sharing location is handy, but think about privacy.
Frequently asked questions
How long does it take for a message to arrive?
30 seconds to 5 minutes, depending on distance and number of repeaters. With direct range within 30 seconds.
Can I send photos without internet?
No, only text, locations and basic data. MeshCore is optimized for efficient, fast text communication.
Does it work even if my phone has no internet?
Yes! You only need Bluetooth. The LoRa radio does the rest via radio signals.
Can others intercept my messages?
Public channel messages are visible to everyone. Private messages are end-to-end encrypted.
What if nobody responds?
Check if others are within range. Go outside or higher for better range. Check your settings.
Can I send to multiple people at once?
Yes, via channels you reach everyone on that channel. Or create a group for specific contacts.
Stay connected, always
Sending messages without internet is surprisingly simple with MeshCore in the Netherlands. No monthly costs, no dependence on providers. Just you, your device, and the mesh network.