LoRa P2P (Peer-to-Peer) Mode
LoRa P2P communication mode is introduced in an upcoming platform firmware release.
LoRa P2P (Peer-to-Peer) allows STICKER devices to transmit proprietary, unmanaged radio frames directly to other nodes or edge receivers without connecting to a LoRaWAN Network Server (LNS).
Key Advantages
- Zero Network Server Infrastructure: Operates without requiring cloud or local LoRaWAN Network Servers (ChirpStack, TTS).
- Low Latency & Custom Schedules: Direct transmission without network join negotiations or LNS duty-cycle overhead.
- Standalone Edge Gateways: Ideal for pairing directly with HARDWARIO FIBER or custom edge receivers in remote or air-gapped deployments.
- Power Efficiency: Eliminates downlink listening windows and join request retries when out of network coverage.
Architecture & Topology
In LoRa P2P mode, STICKER bypasses the LoRaWAN MAC layer while utilizing the underlying Semtech SX1262 / STM32WL LoRa PHY modulation layer. Frames go straight from the device to a receiver you operate. There is no gateway, no Join, and no network server in the path.
Compare this with the LoRaWAN path, where uplinks travel STICKER → gateway → network server → your application. In P2P there is no LoRaWAN MAC, so there is also no Join procedure, no ADR, and no network-managed downlink windows. The two sides simply have to agree on the radio parameters below.
Radio Parameters
When operating in P2P mode, both the transmitter and receiver must be configured with matching physical RF parameters:
| Parameter | Default Value | Description |
|---|---|---|
| Frequency | 868.100 MHz (EU868) / 915.000 MHz (US915) | Center RF frequency channel. |
| Bandwidth (BW) | 125 kHz | Channel bandwidth. |
| Spreading Factor (SF) | SF7 | Trade-off between link budget/range and airtime (SF7 to SF12). |
| Coding Rate (CR) | 4/5 | Forward error correction scheme. |
| Preamble Length | 8 symbols | Radio frame synchronization preamble. |
| Sync Word | 0x12 (Private) | PHY sync word used to isolate private P2P traffic. |
| Tx Power | +14 dBm | Output RF transmission power. |
Configuration & Management
P2P parameters and radio modes can be set locally over NFC using HARDWARIO Manager or via the developer RTT shell:
config radio-mode p2p
config p2p-frequency 868100000
config p2p-sf 7
config p2p-bandwidth 125
settings save
For detailed field commissioning workflows, refer to the HARDWARIO Manager documentation.