Microchip Technology's RN2903 is a fully certified, 915 MHz module based on wireless LoRa technology. The RN2903 utilizes a unique spread-spectrum modulation within the sub-GHz band to enable long range, low power, and high network capacity.

The RN2903 has the complete LoRaWAN™ protocol stack on the modem and is easy to configure via simple ASCII commands through the UART; greatly reducing development time. The RN2903 is FCC-certified which saves significant certification costs. Additionally, it combines a small form factor (17.8 mm × 26.7 mm × 3 mm) with fourteen GPIOs; providing the flexibility to connect and control a large number of sensors and actuators while taking up very little space. The RN2903 modem resolves the age-old wireless developer’s dilemma to choose between longer range and lower power consumption. By employing the RN2903, the user can now maximize both while eliminating the cost of additional repeaters and increasing battery life. With its scalability, robust communication, mobility, and the ability to operate in harsh outdoor environments, the RN2903 is well suited for a broad range of low-data-rate wireless monitoring and control designs.