Buy now RAK7205 LoRa Tracker Node - EU433 - With Solar Panel. The RAK7205 LoRa tracker board is built upon the RAK811. At its core is an STM32L1 microcontroller driving Semtech’s SX1276/78 LoRa chip.GPS is present as well as a number of sensors. The aforementioned makes the board suitable for rapid application development, such as asset tracking, vehicle management, location-based services, environmental monitoring, etc. Additionally, because of its low power consumption in sleep mode, it can provide a long-lasting solution for any battery-powered project.