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Note: The module is internally regulated by 3.3V LDO. The CS pin and SET pin control are 3.3V levels. TXD and RXD are also 3.3V levels.
Parameters | Min. | Typ. | Max. | Unit | Condition |
Working Condition | |||||
Voltage range | 3.3 | 5.0 | 6.5 | V | |
Operating Temperature | -40 | 25 | +85 | ℃ | |
Current Consumption | |||||
Rx current | <15 | mA | TTL level | ||
Tx current | < 130 | mA | |||
Sleep current | < 200 | uA | |||
RF Parameters | |||||
Frequency range | 414.92 | 433.92 | 453.92 | MHz | @433MHz |
470.92 | 490.92 | 509.92 | MHz | @470MHz | |
849.92 | 868.92 | 888.92 | MHz | @868MHz | |
895.92 | 914.92 | 934.92 | MHz | @915MHz | |
Data rate | 91 | 656 | 17353 | bps | @LoRa |
Output power | 4 | 20 | +20 | dBm | Software level 7 adjustable |
Sensitivity | -139 | dBm | @91bps |
Interface | TTL |
Network | MESH |
Frequency | 433MHz,470MHz,868MHz,915MHz |
Modulation | LoRa |
Output Power | 100mW |
NO. | PIN | Description |
1 | RXLED | Receive signal indicator, low level, default high |
2 | TXLED | Transmit signal indicator, low level, default high |
3 | CS | Module enable pin (built-in pull-up) Note: Default factory version: sleep current <200uA, CS pulled high or suspended for normal communication, sleep at low level; Low power consumption version: sleep current <15uA, normal communication when CS is pulled low, pull high or float to sleep. |
4 | RXD | Serial communication data reception |
5 | TXD | Serial communication data transmission |
6 | NC | No use |
7 | GND | Antenna Ground |
8 | ANT | RF signal output, connected to 50 ohm antenna |
9 | GND | Antenna Ground |
10 | +3.3V OUT | 3.3V voltage output pin, can drive devices within 50mA |
11 | 485EN | Can be connected to the external expansion 485 level control conversion pin |
12 | SET | Configuration parameter enable (low level enable parameter configuration, default high level output) |
13 | GND | Connect the negative pole of the power supply, ground wire |
14 | VCC | Connect the positive pole of the power supply (typically 5V) |
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