# OMS®/wM-Bus+ LoRaWAN® for End Devices Multi Stack End Device Remote meter reading enabled by fixed networks and drive-by/walk-by Smooth transition from OMS® to LoRaWAN® possible Switching of stacks "on-the-fly" for maximum flexibility User-defined protocol priority to be set for each possible state of a system #### Test your preferred protocol stack for free with an evaluation license - Register a business account Click **“Sign in”** in the license selection to start the registration process. - Select product Once your account is approved, choose your desired product and click “Start your free trial”. - Sign the agreement Digitally sign the evaluation agreement for your selected product. - Download & start testing After signing, you can download the software package and start your evaluation. [Product description](/content/produkte/oms-wm-bus-lorawan-for-end-devices/#productdescription/index.html) [Benefits](/content/produkte/oms-wm-bus-lorawan-for-end-devices/#benefits/index.html) [Features](/content/produkte/oms-wm-bus-lorawan-for-end-devices/#features/index.html) [Hardware](/content/produkte/oms-wm-bus-lorawan-for-end-devices/#hardware/index.html) [Technical Information](/content/produkte/oms-wm-bus-lorawan-for-end-devices/#technicalinformation/index.html) [FAQ](/content/produkte/oms-wm-bus-lorawan-for-end-devices/#faq/index.html) ### Commercial Features - **First Level Support** Professional first‑level support from experts in embedded connectivity – quick, efficient, and ready to help. - **Quality Product** Our protocol stacks undergo extensive testing, ensuring proven reliability across various IoT applications worldwide. - **Easy commissioning** Thanks to our modular, standardized software solutions, configuring embedded systems is simple and hassle‑free. - **Warranty & Maintenance** We deliver all our products with clear manufacturer warranties and comprehensive guarantees for maximum reliability. **OMS® + LoRaWAN for End Devices** With OMS®/wM-Bus and LoRaWAN® in a high-performance dual stack, the advantages are obvious: Further standardization within **smart metering applications** and the use of existing LoRaWAN® networks facilitate the entry into IoT connectivity. However, our dual stack is not only interesting for those getting started with IoT connectivity. This multi stack solution also enables a smooth transition phase for end users who already operate an OMS®/wM-Bus network and want to switch to LoRaWAN®. ## Your benefits with our Protocol Stack Package ### Well designed API (Application Programming Interface) Easy to use API well-proven and used for several low-power radio stacks by STACKFORCE ### Platform Interface now available as source code Customization and fine tuning of platform driver​ Customization of radio settings (e.g., frequency) ### Optimized power consumption Power consumption is optimized through interrupt driven state management and the exclusion of polling. ### Protocol Stack Features ##### **OMS® v4.5.1** EN 13757-3/-4/-7 (Wireless M-Bus) compliant Protocol Stack for End Devices: - Operation modes S, T or C - Encryption modes 5 and 7 (OMS® security profiles A and B) - Encryption mode 10 (OMS® security profile D) - Compliant to specification OMS® v4.5.1 by OMS® group, referring to EN 13757. - Annex C „Sensor“ compatibility - Enables application to support all use cases specified by Annex M „Requirements for OMS® use case support“ - Optimization of TRX timings ##### LoRaWAN® v1.0.4 Compliant to LoRaWAN® v1.0.4: - Class A & C - OTAA & ABP - Pre-certified for several regions: - EU868 / US915 / AU915 / AS923 Optional software module: - LoRaWAN® Application Protocols ### Available for the following hardware platforms - STMicroelectronics/Semtech STM32L0+SX126x - STMicroelectronics/Semtech STM32U5+SX126X - STMicroelectronics STM32WL5/STM32WLE5 ### Technical Information Supported Specifications - OMS® v4.5.1 Protocol Stack compliant according to EN 13757 (Wireless M-Bus) Open Metering Standard (OMS®) - LoRaWAN® v1.0.4 Protocol Stack compliant according to LoRaWAN® v1.0.4 and LoRaWAN® Regional Parameters v1.0.3 Reference Hardware - STMicroelectronics/Semtech STM32L0+SX126x: Murata LBAA0QB1SJ-TEMP-EVK - STMicroelectronics/Semtech STM32U5+SX126x: Nucleo-U575ZI-Q + SX1262MB2CAS - STMicroelectronics STM32WL5/WLE5: Nucleo-WL55JC ### Memory Requirements The code sizes described above indicate the typical memory requirements for operating the fully equipped protocol stack as a library, including associated drivers. The values are based on the STMicroelectronics STM32WL5/WLE5: Nucleo-WL55JC reference hardware. The RAM requirements for LoRaWAN® FUOTA are not included in the values, as these are highly dependent on the application. #### Frequently asked Questions **What is included in the STACKFORCE software package?** Our Protocol Stack package includes everything you need for integration: - Precompiled stack library - Hardware-specific drivers - Serial interface (UART, SPI, etc.) - Power management - Example applications for quick integration - Documentation **Is the source code open or encrypted? Can we make adjustments ourselves?** The Protocol Stack itself is delivered as object code and cannot be directly modified. The platform interface (including HAL and RF driver integration) is provided as source code. This allows you to: - Adapt the platform driver to your target hardware - Configure specific radio settings such as frequencies - Optimize driver behavior - Add your own components such as security and timers For further adjustments to the stack itself, we are happy to support you with specific development services. **Our requirements are not fully covered by this stack. Can STACKFORCE make custom modifications?** Yes, that’s possible. In addition to our standard solutions, we offer [customer-specific extensions](/content/en/services/index.html) of our Protocol Stacks. This enables us to implement your specific requirements so that the stack integrates seamlessly into your system environment. **My preferred hardware is not supported. What can I do?** We are happy to check compatibility with your specific hardware. If your hardware meets the minimum requirements for running a Protocol Stack, [porting](/content/en/services/stack-customization-and-porting/index.html) is generally possible. We can discuss the porting effort with you or provide our Platform Porting Guide so you can perform the porting yourself. **Can we test our preferred stack before making a decision?** Yes. You can request a free evaluation license and test the software in your target environment – without obligation and risk-free. More information about the evaluation offer can be found on our website under: [_Evaluation License_](/content/en/licensing-models/evaluation-licenses/index.html). **Does STACKFORCE provide support for product certification? If so, how?** STACKFORCE utilizes a multi-stage testing process to ensure high software quality. This includes: - Unit, module, and firmware tests to check functionality and stability of individual components - Static code analysis to detect errors and vulnerabilities early - Automated system tests on simulated and real hardware - Regression tests to ensure that existing functionality continues to work reliably without introducing new errors.