| Main Parameter |
Min. |
Typ. |
Max. |
Unit |
Remark |
| Operating voltage | 2.3 | 3.3 | 5.5 | V | ≥3.3V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be burning down |
| TX current | - | 110 | - | mA | Instant power consumption @22dBm |
| RX current | - | 16.8 | - | mA | 5V Voltage |
| Sleep current | - | 5 | - | uA | Software shutdown |
| Operating Temperature | -40 | - | +85 ℃ | Industrial grade |
| Operating frequency | 850.125 | - | 930.125 | MHz | Support ISM band |
| Tx power | 21.5 | 22 | 22.5 | dBm | - |
| Receiving sensitivity | -146 | -147 | -148 | dBm | Air data rate 2.4kbps |
| Air data rate | 2.4k | 2.4k | 62.5k | bps | To control via user’s program |
| No. |
Name |
Direction |
Function |
| 1 | M0 | Input(weak pull-up) | Work with M1 to decide 4 working modes of module (not suspended, if not used, could be grounded) |
| 2 | M1 | Input(weak pull-up) | Work with M0 to decide 4 working modes of module (not suspended, if not used, could be grounded). |
| 3 | RXD | Input | TTL UART inputs, connects to external TXD output pin. |
| 4 | TXD | Output | TTL UART outputs, connects to external RXD input pin. |
| 5 | 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-check initialization; (can be left floating) |
| 6 | VCC | Input | Voltage range: 3.0～5.5V DC |
| 7 | GND | Input | Ground |
| 8 | Fixed hole | - | Fixed hole |
| 9 | Fixed hole | - | Fixed hole |
| 10 | Fixed hole | - | Fixed hole |
