RF parameters | Unit | Performance | Remark |
Working frequency | MHz | 855~870、902~928 | User programmable control |
dBm | 20.0士0.5 | User programmable control |
blocking power | dBm | 10 | Less likely to be burned if used at close range |
dBm | -123 ~ -124 | Air rate 1.5kbps |
Matching impedance | Ω | 50 | IPEX-1 interface antenna matching impedance |
kbps | 0.5 ~ 470 | User programmable control [Note 1] |
Measured distance | km | 1 (continuous transmission mode) | Sunny and open, height 2 meters, serial port baud rate 115200 [Note 2] |
6 (general transmission mode) | Sunny and open, height 2 meters, air speed 1.5kbps |
Note 1: Valid in general transmission mode;
Note 2: In continuous transmission mode, the module automatically calculates and matches the air rate through the serial port baud rate;
Electrical Parameters | Unit | Performance | Remarks |
Operating Voltage | V | 1.8 ~ 3.6 | ≥3.3V can guarantee the output power. Exceeding 3.6V will permanently damage the module. |
Communication level | V | 3.3 | Using 5V TTL risks burning out |
Emission current | mA | 125 | Instantaneous power consumption |
receive current | mA | 38 | - |
Sleep current | uA | 2 | Software shutdown |
Operating temperature | ℃ | -40 ~ +85 | Industrial grade |
storage temperature | ℃ | -40 ~ +125 | Industrial grade |
Hardware parameters | Unit | Description | Remarks |
Packet length | byte | 55 (normal mode) | No limit on packet length in continuous mode |
cache capacity | byte | 4096 (normal mode) | Can be regarded as unlimited capacity in continuous mode |
Modulation | - | GFSK | Gaussian Frequency Shift Keying Modulation |
Communication Interface | - | UART serial port | TTL level |
Serial port baud rate | bps | 2400 ~ 230400 | - |
Packaging method | - | SMD type | stamp hole |
PA+LNA | - | LAN only | Power amplifier + low noise amplifier |
SAW | - | have | surface acoustic wave filter |
Antenna interface | - | IPEX-1 generation | Equivalent impedance is about 50Ω |
Dimensions | mm | 16.0*26.0*3.9 | Length*width*height, error is ±0.1 |
weight | g | 2.4 | The error is ±0.1
|

No. | Pin | Pin Direction | Remarks |
1 | NC | - | Empty feet |
2 | GND | - | Module ground wire |
3 | NC | - | Empty feet |
4 | nNEST | Output | Module reset pin, low level reset |
5 | NC | - | Empty feet |
6 | NC | - | Empty feet |
7 | NC | - | Empty feet |
8 | GND | - | Module ground wire |
11 | GND | - | Module ground wire |
12 | ANT | - | antenna |
13 | GND | - | Module ground wire |
14 | GND | - | Module ground wire |
15 | GND | - | Module ground wire |
16 | GND | - | Module ground wire |
19 | GND | - | Module ground wire |
20 | M0 | Input (very weak pull-up) | Cooperate with M1 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used) |
21 | M1 | Input (very weak pull-up) | Cooperate with M0 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used) |
22 | RXD | Input | TTL serial port input, connected to the external TXD output pin; |
23 | TXD | output | TTL serial port output, connected to the external RXD input pin; |
24 | AUX | output | Used to indicate the working status of the module; the user wakes up the external MCU and outputs low level during power-on self-test initialization; (can be left floating) |
25 | VCC | - | Module power supply positive reference, voltage range: 1.8~3.6V DC |
26 | GND | - | Module ground wire |