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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 | @490MHz | |
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 | 18 | +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 | I/O | Level standard | Description |
1 | SET | I | 0-3.3 | Configuration parameter enable (low level enable parameter configuration, default high level output) |
2 | CS | I | 0-3.3 | Module enable pin(Built-in pull-up) Note: Default factory version: Sleep current <200uA, normal communication when CS is pulled high or suspended, and sleep when low level; Low-power version: Sleep current <15uA, normal communication when CS is pulled low, and sleep when pulled high or suspended |
3 | TXLED | I | 0-3.3 | Transmit signal indicator light, low level lights up, default high level |
4 | RXLED | I | 0-3.3 | Receive signal indicator, low level lights up, default high level |
5 | NC | |||
6 | 485EN | O | 0-3.3 | Can be connected to externally expanded 485 level control conversion pin |
7,10,13 | GND | 0 | Connect the negative pole of the power supply and the ground wire | |
8 | RX ANT | I | RF signal input, connect with 50 ohm antenna | |
9 | TX ANT | O | RF signal output, connect with 50 ohm antenna | |
11 | RXEN | O | 0-3.3 | Receive enable control pin, high when receiving, low when transmitting. |
12 | TXEN | O | 0-3.3 | Transmit enable control pin, low when receiving, high when transmitting. |
14 | VCC | I | Connect to the positive pole of the power supply (typical value 5V) | |
15 | RXD | I | 0-3.3 | Module serial communication input |
16 | TXD | O | 0-3.3 | Module serial communication output |
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