LoDev S76S

by Ronoth, LLC

An STM32 LoRa® development platform that's software-compatible with Arm® Mbed™

$3,653 raised

of $4,500 goal

81% Funded

Pledge Now

$35

LoDev S76S Basic

One LoDev board with headers and 2 dBi stub antenna. Bring your own programmer.


$42

LoDev S76S Starter

One LoDev board with headers and 2 dBi stub antenna and ST-Link V2 programmer.


$65

LoDev Duo Basic

Two LoDev boards with headers and 2 dBi stub antenna. Bring your own programmer.


$72

LoDev Duo Starter

Two LoDev boards with headers and 2 dBi stub antenna and ST-Link V2 programmer.


$310

LoDev Classroom

Ten LoDev boards with headers and 2 dBi stub antennas


$89

LoDev Pro - Weather Station

Two LoDev boards with headers and 2 dBi antenna, ST-Link V2 programmer, DHT11 temp and humidity sensor, light sensor and soil moisture sensor. Everything needed to build your own environment project along with the demo code.


$27

S76S Tester

Three S76S LoRa SiP chips to build design own sensor application.


$80

S76S Developer

Ten S76S LoRa SiP chips to build design own sensor application and build prototypes with.


$6

5 dBi Antenna

The included antenna is nice and compact, but could offer better gain. This is a 5 dBi wide-band dipole about 17 cm (7 inches) long compared to the 5 cm (2 inch) standard 2 dBi antenna.


$9

ST-Link Programmer

ST-Link Programmer & Emulator / Debugging dongle for STM micro-controllers.

Details

Recent Updates


As Featured In

Hackster.io

"The module has a receiver sensitivity down to -146dBm, an adjustable signal strength of up to +20dBm, and a range of up to 15km in rural areas, and 5km in urban areas. "

Make

"Die Auslieferung soll im Mai beginnen. Bei erfolgreichen Kampagnen ist die Hardware auf Crowdsupply übrigens dauerhaft nachbestellbar."

Arm Mbed software compatible STM32 LoRa Development platform

LoDev by Ronoth is an open source LoRa® Development board featuring the S76S SiP (system-in-a-package) from AcSip. The S76S is a compact SiP featuring STM32L073 micro-controller, SX1276 LoRa® Radio, and RF matching components, all in a very compact 11x13 mm package that comes with an FCC modular certification. LoDev allows IoT (Internet of Things) engineers and hobbyists to develop their own sensors and devices with long-range connectivity.

Overview

LoRa® technology is one of the leading wireless technologies powering the emerging Internet of Things. It is used in tons of cool technologies such as automatic meter reading, smart parking, and even livestock tracking. It has the unique ability to send packets over fairly long distances using minimal power (We’re talking kilometers!). LoRa® technology is perfect for devices that are located far away and need to send small amounts of data.

LoRa® wireless technology is used in industries and use-cases including:

  • Cattle farming - Tracking herd movement, location, body temperature, and local humidity
  • Vineyards - Soil moisture, humidity, temperature, and weather conditions
  • Asset tracking - Realtime location tracking
  • Railway - Early detection of freezing of railway switches
  • Utilities - Waterflow meters, electric meters
  • Pest control - Connected mousetrap

Who Needs It and Why

LoDev is perfect for hobbyist and professional engineers to develop their own sensors and devices. It allows rapid development of sensor applications by leveraging the rich Mbed developer community.

Hobbyist

LoDev is open-source and made by a hardware enthusiast for hardware enthusiasts. It is breadboard friendly and comes with a ton of software examples to get you started. It was built with the Mbed IDE and community in mind, but will work with any IDE supporting ARM Cortex.

Mbed IDE allows you to easily import the provided sample projects, compile them, make changes and share your projects all inside your browser. Some of the sample projects include:

Weather Sensors

LoRa® technology is widely applicable in agriculture and environmental monitoring. That’s why we’re offering a weather sensor pledge level. It includes a DHT11 temp and humidity sensor, soil moisture sensor, and light sensor with full source code available as an importable Mbed project to get started.

Mailbox Notifier

LoDev can be used to provide endless creative solutions to everyday problems. We built a mailbox sensor switch using a custom 3D printed part that attaches with magnets. This allows us to know when our mail has arrived in real time.

Engineers and Designers

LoDev is the platform of choice for engineers and hardware designers looking to move rapidly into the growing LoRa® ecosystem. LoDev along with the S76S SiP offer a best of breed solution in all key areas.

  • Low TCO (Total Cost of Ownership) - There are a lot of factors that go into account when considering TCO. The key reason LoDev is the clear winner include:
  • Low-cost of development board
  • Professional Mbed community and rich library ecosystem
  • Low parts count and BOM cost - Besides a few passives, the S76S is the only SiP solution that requires no external components

  • Fast GTM (Go to Market) - Using the LoDev platform along with the wealth of code and examples available through the Mbed community it’s possible to develop custom sensor applications in days not months. When it’s time to go from LoDev to a custom board layout using the S76S . You’ll also have the peace of mind knowing the S76S is FCC modular certified saving you time and money navigating RF regulations.

  • Design flexibility - The S76S is the smallest self-contained LoRa® SiP on the market. Save that board space for a bigger battery.

Check out the S76S comparison chart below for a good illustration of why the S76S is the best LoRa® solution for low TCO and fast GTM.

LoDev Comparison

LoDev is the only LoRaWAN™ compatible development board featuring the S76S SiP.

LoDev SX1272¹ Adafruit LoRa® Feather SparkFun Pro RF
Mbed Support Yes Yes No No
Arduino Support No³ No³ Yes Yes
MCU STM32L073x Varies² ATSAMD21 M0 ATSAMD21 M0
Radio Package Integrated SiP Arduino Shield Separate Module Separate Module
Memory 192 kB Varies² 256 kB 256 kB
Speed 48 MHz Varies² 48 MHz 32 MHz
Breadboard Friendly Yes ~sucess No Yes No
Size 21x52 mm 54x69 mm 23x58 mm 30x44 mm
Price⁴ $32.50 $39.00 $34.95 $29.95
  1. SX1272 is a Arduino compatible shield, for price comparison sake, configurations includes NUCLEO-L073RZ development board.
  2. Dependent on what host board the SX1272 shield is on
  3. These boards are potentially supported with the Arduino_STM32 board support package, but no Arduino boot-loader is available. While possible, this is a non-trivial route.
  4. Pricing for 2 units (minimum for point to point communication)

S76S Comparison

At the heart of LoDev is the S76S SiP (System In a Package).

When you are looking to use that development board, it is important to consider the cost and time involved in taking a prototype to a custom product. The S76S is the smallest, most cost effective LoRa® SiP that is FCC Certified. It also comes in a friendly LGA package that is much easier to route than fine pitch BGAs, and requires no additional external components outside of decoupling capacitors.

S76S RFM95W RN2903 SAMR34 CMWX1ZZABZ
Manufacturer AcSip HopeRF Microchip Microchip muRata
FCC Modular Certified Yes Yes Yes No Yes
Footprint LGA Castellated Castellated Fine pitch BGA LGA
MCU Type Cortex M0 None 8-bit PIC Cortex M0 Cortex M0
Memory 192 kB None 64 kB up to 256 kB 256 kB
Size 11x13x1.1 mm 16x16x1.8 mm¹ 27x18x3.3 mm 6x6x0.3 mm¹ 12.5x11.6x1.76 mm
External Components Req. None MCU None RF Switch & Filtering None
1k Price $6.50 $4.25² $10.96 $5.07² $11.85
  1. Additional space required for external components
  2. Cost does not include additional required components

Key Features

  • Single chip integrated LoRaWAN™ solution
  • Works with Mbed IDE (select NUCLEO_L073RZ target) or any STM32 / Arm Cortex compatible IDE
  • STM32L073 microcontroller with 192 kB of program space
  • Breadboard friendly
  • Open source hardware and example code

Specifications

  • Dimensions: 60 mm x 20 mm
  • Receiver Sensitivity: down to -146 dBm
  • TX Power: adjustable up to +20 dBm
  • Range: up to 15 km coverage in suburban and up to 5 km coverage in urban areas

Pinout

Shipping & Fulfillment

All orders will be delivered to backers using Crowd Supply’s fulfillment service. Delivery within the US is included in the listed price while delivery outside the US will incur the shipping surcharge listed for each pledge level. For more information, please see Crowd Supply’s guide on ordering, paying, and shipping.

Risks and Challenges

LoDev has been through several iterations of development and has been used in the field for many months. We’ve produced dozens of them and have made numerous design improvements to aid manufacturability.

Ronoth, LLC (Formerly Third Venture Inc) is the same team that brought you LoStik and has experience delivering products through Crowd Supply in the past.

There is risk when delivering thousands of units in a timely manner because of component availability and lead times. We already have conversations ongoing with suppliers and have already purchased some key components for an initial production run.

LoRa® and LoRaWAN™ are trademarks of Semtech Corporation or its subsidiaries. Arm® Mbed™ are trademarks of Arm Limited.

Funding ends on Apr 25, 2019 at 04:59 PM PDT (11:59 PM UTC)


Credits

Ronoth, LLC

We are a handful of crazy tech entrepreneurs who have a passion for open-source hardware and software. We've worked together for close to 10 years now and have probably had more than three ventures, but we're only counting the best ones. We're always fascinated with the uncountable ways the internet has changed and connected the world around us and continuously look toward new ways we can be a small part of this generations most exciting advancement.


Steven Osborn


Mouser Electronics

Component provider

PCBWay

PCBA Manufacturer

AcSip

SiP Manufacturer

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