EMB-LRWL55
The EMB-LRWL55 is an ultra-low-power LoRaWAN® OEM module based on STM32WL55xx. It is based on Arm® Cortex®‐M4 and Cortex®-M0+ dual cores both running at 48 MHz, and a sub-GHz radio based on Semtech’s SX126x. EMB-LRWL55 is a software open platform, which embeds a fully compliant LoRa® transceiver.
About this device
The EMB-LRWL55 is an ultra-low-power LoRaWAN® OEM module based on STM32WL55xx. It is based on Arm® Cortex®‐M4 and Cortex®-M0+ dual cores both running at 48 MHz, and a sub-GHz radio based on Semtech’s SX126x. EMB-LRWL55 is a software open platform, which embeds a fully compliant LoRa® transceiver.
The EMB-LRWL55 supports 10 regional frequency plans and operates as a Class A/B/C LoRaWAN device.
Key features
- 10 frequency plans supported: AS923, AU915-928, CN470-510, CN779-787, EU433, EU863-870, IN865-867, KR920-923, RU864-870, US902-928.
Vendor
At a glance
Hardware specifications
| Model ID | emb-lrwl55 |
| Dimensions | 13.5 × 12.8 × 2.5 mm |
| Operating temperature | -40 °C to 100 °C |
Sensors & capabilities
No sensors listed for this device.
Certifications & compliance
Standards
Network profiles
Capabilities are defined per firmware version and frequency plan, exactly as published in the repository.
Firmware 1.0.1
| Frequency plan | MAC | Reg. params | Class | Join | Max EIRP | Certified |
| AS923 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 16 dBm | — |
| AU915-928 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 30 dBm | — |
| CN470-510 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 19 dBm | — |
| CN779-787 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 12 dBm | — |
| EU433 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 12 dBm | — |
| EU863-870 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 16 dBm | — |
| IN865-867 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 30 dBm | — |
| KR920-923 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 14 dBm | — |
| RU864-870 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 16 dBm | — |
| US902-928 | 1.0.3 | RP001-1.0.3-RevA | A / C | OTAA | 32 dBm | — |
Frequency plan coverage
Also supported: CN779-787
Add to The Things Stack
Manual setup
Create an application
In The Things Stack console, go to Applications → Create application and pick a unique application ID.
Register an end device
Choose From the LoRaWAN Device Repository and search for “EMB-LRWL55”. Select your firmware version and frequency plan.
Enter device credentials
Provide the DevEUI, JoinEUI and AppKey printed on the device label or QR code.
Power on & verify uplinks
Within a few minutes you'll see the join request and uplinks in the Live data tab.