Loko: Small, durable, open source, long-range LoRa GPS tracker (schematic, source code, etc.)

Loko is an open source, battery-operated GPS tracker. It's a small, simple, and useful device that sends navigation data to its receiver via a peer-to-peer LoRa radio. Unlike other similar technologies, there are no ongoing costs. Loko is based on radio communication and requires no SIM card/monthly fee. It also works everywhere, even without 2G/3G/LTE coverage.

Designed with ultra-low power consumption in mind, Loko can operate for more than 30 days on a single charge using a tiny built-in coin cell battery. The transmitter is also only 12 grams, which will hardly increase the weight of key products such as micro drones. Designed for harsh conditions and crashes, Loko is waterproof, rust-proof and durable. Loko can also transmit navigation data to existing LoRaWAN networks.

The Loko bundle has 2 units: ground unit (receiver) and air unit (transmitter). The air unit transmits navigation data at preconfigured intervals to the ground unit, which transmits the received data via Bluetooth to a smartphone app (only on this version of iPhone). The app automatically displays the location of any Loko Air module on a 2D map.