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The Unit LoRaWAN-AS923 is a LoRaWAN communication module designed for long-distance, low-power IoT deployments on the AS923 band. Built around the STM32WLE5 LoRa solution, the Unit LoRaWAN-AS923 integrates a LoRaWAN protocol stack and supports Class A, Class B, and Class C operation for different downlink and power-consumption requirements.
With UART AT-command control, OTAA and ABP activation, LoRa point-to-point communication, and a high-sensitivity 2.3dBi rubber duck antenna, the Unit LoRaWAN-AS923 can work as a gateway collection node or support direct device-to-device communication when a gateway is not required. The Unit LoRaWAN-AS923 is suited for smart agriculture, industrial monitoring, environmental monitoring nodes, and long-range sensor networks in Asia and other compatible AS923 regions.
Notice: The AS923 version is designed for Asia and other regions using the 923-925 MHz AS923 band. Confirm local LoRaWAN frequency regulations, regional channel plan, and gateway support before deployment.
| LoRa Solution | STM32WLE5 @ 256 KB Flash, 64 KB RAM |
| Supported Frequency | AS923 (923-925 MHz) |
| Protocol Support | LoRaWAN 1.0.3 protocol, Class A, Class B, Class C |
| Receiver Sensitivity | -137 dBm |
| LoRaWAN Activation Modes | OTAA, ABP |
| Communication Modes | LoRaWAN and point-to-point (P2P) |
| Communication Range (P2P) | 2300m at 125Kbps, 1300m at 500Kbps |
| Interface Type | UART serial port @ default baud rate 115200, supports AT commands |
| Antenna Type | High-performance rubber duck antenna, 50-ohm impedance @ 2.3dBi, total length 195mm, SMA male connector |
| Standby Power Consumption | Idle state: DC 5V/7.23mA; sleep state: DC 5V/28.61uA |
| Operating Current at 500Kbps | Data reception: DC 5V/9.20mA; data transmission: DC 5V/11.36mA |
| Operating Current at 125Kbps | Data reception: DC 5V/8.43mA; data transmission: DC 5V/117.16mA |
| Operating Temperature | 0 to 40 C |
| Product Size | 71.4 x 24.0 x 8.0mm |
| Product Weight | 11.9g |
| Package Size | 243.0 x 93.0 x 9.0mm |
| Gross Weight | 38.2g |
| 1 | Unit LoRaWAN-AS923 |
| 1 | HY2.0-4P Grove Cable (20cm) |
| 1 | Rubber Duck Antenna (@2.3dBi, total length 195mm, SMA male connector) |
The Unit LoRaWAN-AS923 uses PORT.C for UART communication: black is GND, red is 5V, yellow is UART_RX, and white is UART_TX. The UART interface and AT-command manual are useful for host-controller integration, automated provisioning, and application firmware development.
LoRaWAN Class A provides the lowest downlink real-time performance and the lowest power consumption for periodic upload nodes. Class B provides medium downlink timing and medium power consumption for scheduled control devices. Class C provides the highest downlink real-time performance and the highest power consumption for real-time control, including industrial automation.
The STM32WLE5-based LoRaWAN unit family is offered in multiple regional bands. Choose the Unit LoRaWAN-AS923 only when the local network, gateway, and channel plan support AS923 operation in the 923-925 MHz range.
The Unit LoRaWAN-AS923 is intended for Asia and other regions using the 923-925 MHz AS923 band. Check local frequency regulations, regional channel plan, and gateway compatibility before deployment.
Yes. In addition to LoRaWAN network communication, the module supports LoRa P2P point-to-point communication for direct device-to-device scenarios.
The module uses a UART serial interface with AT-command control, which makes it practical for M5Stack controllers and other host systems that can communicate over UART.
The package includes the Unit LoRaWAN-AS923 module, a 20cm HY2.0-4P Grove cable, and a 2.3dBi rubber duck antenna with SMA male connector.
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