Main parameter | Performance
| Remark |
Operating frequency
| 410~493MHz | Support ISM band
|
Tx power | 22 dBm | -
|
Receiving sensitivity | -129dbm
| -
|
Air data rate | 1.76k~62.5kbps | User programming control
|
Distance for reference | 5.5km | Test condition:clear and open area, antenna gain: 5dBi,antenna height: 2.5m,air data rate: 2.4kbps
|
Main parameter | Performance
| Remark |
Size
| 20* 14*2.8 mm
| -
|
RF interface
| IPEX/stamp hole | -
|
Communication interface | SPI
| 0-10Mbps
|
Package | SMD | -
|
Main parameter | Min. | Typ. | Max. | Unit | Remark |
Operating voltage
| 1.8 | 3.3 | 3.7 | V | ≥3.3V ensures output power
|
Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down
|
TX current | - | 100 | - | mA | Instantaneous power consumption
|
RX current | - | 6.5 | - | mA
| -
|
Sleep current | - | 180 | - | uA | Software shutdown
|
Operating temperature
| -40 | 20
| +85 | ℃ | Industrial design |

No. |
Definition |
Function Description |
1 | 3.3V | 3.3V Electric pin |
2 | 3.3V | 3.3V Electric pin |
3 | GND | Floor reference ground |
4 | GND | Floor reference ground |
5 | 3.3V | 3.3V Electric pin |
6 | GND | Floor reference ground |
7 | REST | MCU External reset pin |
8 | SWIM | SWIM pin of MCU |
9 | 3.3V | 3.3V Electric pin |
10 | VCC | Module power supply pin, need to be short-circuited with pin 9 to supply power to the module |
11 | PC6 | MCU ordinary IO |
12 | PC5 | MCU ordinary IO |
13 | PB3 | MCU ordinary IO |
14 | PB2 | MCU ordinary IO |
15 | PB1 | MCU ordinary IO |
16 | PB0 | MCU ordinary IO |
17 | M1 | Module mode switch pin (see module product manual for details) |
18 | M0 | Module mode switch pin (see module product manual for details) |
19 | PD1 | MCU ordinary IO |
20 | PD0 | MCU ordinary IO |
21 | GND | Floor reference ground |
22 | GND | Floor reference ground |
23 | 5V | 5V Electric pin |
24 | 5V | 5V Electric pin |