The Smart Node N811 is an ultra‑low‑power ISM‑band wireless communication module with adjustable frequency, transmit power, and multiple interfaces.
The Smart Node N811 is an ultra‑low‑power ISM‑band wireless module designed for IoT applications such as smart grid, industrial monitoring, security and medical devices. It supports software‑controlled frequency tuning from 169 MHz to 1 GHz, adjustable transmit power up to 20 dBm, and a variety of communication modes.
The datasheet provides detailed electrical specifications, pin definitions, packaging information, and development tools. It includes parameters such as supply voltage, current consumption in various modes, data rates, sensitivity, and mechanical dimensions, helping designers integrate the module into their products. This manual is written in Chinese.
| Frequency range | 169 MHz – 1 GHz |
|---|---|
| Transmit power | 1 dBm – 20 dBm (adjustable) |
| Supply voltage | 2 V – 3.6 V |
| Sleep current | 5 µA |
| Listen (WOR) current | 20 µA |
| Transmit current | 35 mA – 76 mA (depending on power) |
| Receive current | 10 mA |
| Data rate | 2.4 kbps – 256 kbps (adjustable) |
| Sensitivity | -124 dBm @ 2 kcps |
| Package size | 24 mm × 14 mm × 2 mm |
| Operating temperature | -40 °C to +85 °C |
The module operates from 2 V to 3.6 V.
It uses a UART TTL‑level serial interface.
The sleep (deep‑sleep) current is 5 µA.
It supports ISM frequencies from 169 MHz up to 1 GHz.