MCCI Model 4917 LoRaWAN® One-wire Sensor Node

The MCCI® Model 4917 is a complete single-board IoT device for LoRaWAN® technology projects. It combines CPU, radio and integrated sensors.

Based on the Murata CMWX1ZZABZ-078, and designed to be compatible with the Adafruit Feather family of development boards and accessories, the Model 4917 is a great platform for LoRaWAN investigation and deployment. It works well with The Things Network, or any LoRaWAN 1.0 or 1.1 network in the 865 to 923 MHz range.

Lightweight and compact (approximately 2" × 0.9"), the 4917 requires a One Wire DS18B20 temperature sensor probe to measure and transmit temperature. It can be powered via USB Type-C or two AAA batteries.

Because of the embedded FRAM, the Model 4917 fully meets the requirements of LoRaWAN 1.1, without worrying about EEPROM wear out or wear-leveling, both for ABP and OTAA.

Specifications and Features

Murata LoRaWAN module

• Semtech SX1276 LoRa radio
• STM32L082 CPU (Cortex M0+, 32 MHz, 192K flash, 20K RAM)
• High quality RF engineering
• Certified for US and EU
• Compatible with IN866, AS923, AU921 bands

Additional Features

• Powered from primary (disposable) batteries (such as 2x AAA cells) (Note: in contrast to the Model 4917, there is no charger in this model. If you need rechargeable batteries, please consider the 4610).
• 22uA current draw in stand by
• 8K bytes FRAM for LoRaWAN provisioning info and frame counters -- power can be removed completely without requiring a new join to the network, and without losing uplink and downlink count values (required for LoRaWAN 1.1)
• 1M byte SPI Flash for bulk data storage, future FoTA firmware storage, etc.
• Software-controlled boost converter allows dynamically raising voltage to 3.3V for analog measurement and powering internal sensors
• USB or SWD for download and debug
• Pin-compatible with Adafruit Feather M0 family of boards (some limitations because the of functional differences between the Murata module and the Atmel SAMD21 CPU used in the Feather M0)
• Arduino-compatible
• Designed for use with The Things Network (open-source, user-owned IoT network based on LoRaWAN); but can be used with any LoRaWAN-compatible network
• Provisions for screw terminals for pulse, analog or digital I/O
• Software-controlled switches for external power output to screw terminals
• Whip, u.FL, or SMA antenna
• Open source hardware and software (https://github.com/mcci-catena)

MCCI provides a full Arduino board-support package, available here.

MCCI also provides libraries to allow rapid prototyping and experimenting, including an open-source LoRaWAN stack that supports the EU868, US915, AS923, AU915, KR920 and IN866 regional plans.

ST Micro tools may also be used.

The Model 4917 works well with and is tested with The Things Network (an open-source, user-owned IoT network based on LoRaWAN); but can be used with any LoRaWAN-compatible network, including The Things Stack, Actility, ChirpStack and generic implementations.

Supports MCCI's One-wire sensor probes

• MCCI Dual One Wire DS18B20 Temperature Sensor 3ft Probe with JST-XH
• MCCI One Wire DS18B20 Temperature Sensor 3ft Probe with JST-XH and Pigtail
• MCCI Temperature Probe with JST-XH connector

Volume discounts and custom variants are available. Contact MCCI via email (sales@mcci.com) for assistance.

LoRa and Semtech are registered trademarks of Semtech Corporation. LoRaWAN is a registered trademark of the LoRa Alliance. MCCI and MCCI Catena are registered trademarks of MCCI Corporation. All other trademarks are the property of their respective owners.