Central Indiana Mesh Network

What is CIMN

The Central Indiana Mesh Network (CIMN) is a community-driven effort focused on expanding the use of open-source mesh communication tools—like Meshtastic—across Central Indiana. Our mission is to create a stronger, more resilient, and decentralized way to stay connected when traditional services aren’t available.

Through the setup and growth of LoRa-based mesh nodes, we provide off-grid, low-power messaging that works independently of cellular networks, internet connections, or even the power grid. This makes CIMN a valuable resource during emergencies, local events, and in rural or underserved areas where connectivity is limited.

By sharing knowledge, hosting nodes, and working alongside local groups and individuals, CIMN is building a volunteer-powered communication network designed to enhance preparedness, foster collaboration, and bring people closer together—one node at a time.

Getting Started with CIMN

1

Get a Node ✅
Purchase a Meshtastic-compatible LoRa device. These small, affordable radios form the backbone of the mesh. These can be purchased from Amazon for anywhere from $50 - $120, depending on what you want. A basic Heltec v3 is a good starter node!
2

Configure Your Device ⚙️
Download the Meshtastic app and follow the setup to pair your node with your phone or computer.
3

Connect to the Mesh 🔗
Once configured, your node will automatically link into the CIMN mesh—expanding coverage and strengthening the network.
In Central Indiana, we use the default LongFast channel. This will make sense once you get going!
4

Join the Community 👥
Share messages, take part in events, and help build a resilient communication option across Central Indiana.

What Can It Do?

With a basic node and the Meshtastic app, CIMN members can do far more than just send simple texts. Here are a few of the most common uses:

📢 Broadcast Messages: Share open messages on the main channel so anyone on the mesh can see them—ideal for alerts or neighborhood announcements.
🔒 Group Channels: Create private groups with encryption keys so teams (like a neighborhood watch or event staff) can communicate securely.
✉️ Direct Messaging: Send encrypted, private messages to a single person—like secure texting without the cell network.
📍 Location Sharing: Optionally share your live position so other users can see where you are on the map.
🌍 Global Gateway (MQTT): If someone nearby runs a gateway, your local mesh can connect to the global Meshtastic network—bridging communities worldwide.
📊 Telemetry & Sensors: Hook up sensors to your node to report data like battery levels, signal quality, or even environmental readings such as weather conditions.

See You Around Town On The Mesh Network!

Whether you’re checking coverage from a trail, coordinating at a festival, or just saying hi from your porch—welcome to the mesh. CIMN is a friendly, volunteer‑powered network that grows stronger with every new node online.

Have questions or want help picking your first device? Drop us a line at info@cimesh.net and we’ll get you pointed in the right direction.

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