Overview
Reference Design
The One-Channel Hub reference design provides LoRaWAN network connectivity utilizing the lowest cost solution available by incorporating Semtech's LoRa sub-GHz transceiver with a low cost Espressif MCU, and adds an LCD display for simple user operation. Currently compatible with SX1261, SX1262, SX1268, LR1121(for dual SF-operation) and LLCC68.
With the LR1121, the One-Channel Hub supports two SFs in parallel. This enhances versatility of the network, with the possibility to connect very remote sensors, using SF10 for example, as well as nearby sensors, i.e. using SF7, providing lower power consumption or more data throughput.
Order Codes
- LRWHUB1EVK1A for SX1261, SX1262, SX1268, LR1121 & LLCC68 Gateway Development Kit
- See table below for LoRa Shield ordering codes
Features
The reference design consists of :
- One channel
- Class A/C LoRaWAN Compatible
- Half duplex mode
- Transmit power up to +22dBm
- Receive sensitivity down to:
- EU868/CN470
- -137 dBm at SF12, 125kHz bandwidth (SX126x, LLCC6x)
- -141 dBm at SF12, 125kHz bandwidth (LR1121)
- -124 dBm at SF7, 125kHz bandwidth (SX126x, LLCC6x)
- -127 dBm at SF7, 125kHz bandwidth (LR1121)
- US915
- -120 dBm at SF8, 500kHz bandwidth (SX126x, LLCC6x)
- -124 dBm at SF8, 500kHz bandwidth (LR1121)
- EU868/CN470
Packaging
- The LRWHUB1EVK1A contains an ESP32-S3 shield adapter board and an OLED display adapter board
- LoRa Shields ordered separately
- Some assembly required
| Documents | Release Date | Type |  |
|---|---|---|---|
| AN1200.94: LoRaWAN Theory for One Channel Hub | 2025-03-07 | | |
| AN1200.96: One-Channel Hub Hardware and Regulatory Aspects | 2025-03-13 | | |
| LR1121MB2THDAS 868MHz & 915MHz RF Module - Design Files | 2025-03-17 | ZIP | |
| LRWHUB1EVK1A Interface Kit for the One Channel Hub | 2024-09-27 | 7Z | |
| SX1261MB1BAS 868 MHz RF Module - Design Files | 2024-09-27 | ZIP | |
| SX1262MB1CAS 915 MHz RF Module - Design Files | 2024-09-27 | ZIP | |
| SX1268MB1GAS 490 MHz RF Module - Design Files | 2024-09-27 | ZIP | |
| One Channel Hub EVK User Guide | 2025-03-12 | | |
| Documents | Release Date | Type | |
|---|---|---|---|
| One-Channel Hub HAL and Packet Forwarder for ESP32 | 2024-09-26 | TXT | |
Click diagram to enlarge
Inventory
| Product | Country | Distributor | Qty | Buy |
|---|
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