SiPs deliver low-power LoRa solution for edge devices

21st December 2018
Posted By : Mick Elliott
SiPs deliver low-power LoRa solution for edge devices

Delivering low-power performance for a wide range of Internet of Things (IoT) applications, the SAM R34 LoRA sub-GHz SiP family of devices from Microchip Technology integrate a 32-bit microcontroller, software stack, and sub-GHz LoRa transceiver in a small 6mm × 6mm package. The SiPs are in stock at Mouser Electronics.

The devices incorporate a Microchip SAM L21 microcontroller based on a 32-bit Arm Cortex-M0+ core with up to 256Kbytes of flash and 40Kbytes of RAM. The onboard UHF transceiver supports LoRa and FSK modulation and covers frequencies from 137MHz to 1020MHz with maximum transmit power up to +20 dBm without external amplification.

The SAM R34 family is supported by Microchip’s LoRaWAN protocol stack and supports Class A and Class C end devices, as well as proprietary point-to-point connections.

Sleep modes are as low as 790nA, helping to extend battery life and conserve power consumption in smart devices. The SiP includes a USB interface, making it suitable for USB dongle applications or for software updates via USB.

Battery-powered and sensor-based connected applications, including smart agriculture, smart city devices, and tracking devices for supply chain management are targets for the SiPs.

Mouser also stocks the SAM R34 Xplained Pro evaluation kit, supported by the Atmel Studio 7 integrated development platform. The kit includes reference designs and software examples that enable engineers to develop SAM R34-based LoRa end-node applications.

It is certified with the Federal Communications Commission (FCC), Industry Canada (IC), and Radio Equipment Directive (RED) so designs can meet government requirements across geographies.


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