Welcome to Out and Back

Off-grid, low power, Open Source mesh communication

Out and Back is a modern communication tool free of the need for cellular or Internet access.

Explore the projects View on GitHub

Why Out and Back?

Community Powered Mesh

Out and Back builds open, affordable tools for staying connected and protected where there's no cellular or Internet. A community-powered mesh, and real hardware you can build today.

Easy to use

Flash it, power it, done. No accounts, no subscriptions, no cloud dependency — just simple hardware that works out of the box.

Awesome Technology

Built on best-in-class open technologies like LoRa mesh networking, ESP32 microcontrollers, and MQTT.

Super Flexible

Designed from the ground up to be extended — mix sensors, radios, and alert channels to fit your site.

Affordable

Built from low-cost, off-the-shelf hardware, so anyone can afford to deploy it.

Projects

Built in the open
MeshTripwire OPEN SOURCE · NOW ON GITHUB
Off-grid-first tripwire sensors for remote properties.

Distributed sensors detect nearby WiFi/BLE devices and feed them to a Raspberry Pi base station that filters, logs, and alerts on unknown devices. Everything runs over WiFi/MQTT by default; an optional LoRa mesh extends sensors and alerts off-grid where there's no Internet or WiFi.

SENSEESP32 WiFi/BLE sniffers · vehicle magnetometer · vibration · reed/PIR contact sensors
→
RELAYWiFi/MQTT on-site · LoRa mesh off-grid
→
FILTER & LOGPi base station · RSSI filter · whitelist · SQLite · built-in dashboard
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ALERTntfy · webhook · Twilio SMS · off-grid over the mesh via RelayFabric

Built-in dashboard

24-hour per-node activity charts, node health, live event feed and searchable history. Read-only, stdlib only, works fully offline.

False alarms, gated

Dwell timing, arming schedules and a sensor watchdog: a car passing the fence is ignored; someone loitering isn't.

Smarter together

Events from multiple sensor types within minutes escalate to a single HIGH CONFIDENCE alert.

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More projects are in the workshop. Follow along on GitHub.

When you go Out be sure to make it Back

Out and Back empowers you to communicate anywhere.

Jeep on slickrock