The E28-2G4M27S 2.4GHz SPI +27dBm Enhanced Power LoRa Transceiver Module is based on original imported RFIC SX1280 from SEMTECH, adopts LoRa and FLRC And GFSK Modulation.
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The E28-2G4M27S is a 2.4GHz module.The IC SX1280 features multiple physical layers and various modulating methods such as LoRa, FLRC and GFSK. The special modulating and processing methods enable longer operating range with LoRa and FLRC modulating, and the GFSK method covers BLE protocol.
| RF Parameter | Value |
Remark |
| Working frequency |
2400~2500 MHz |
ISM band |
| Transmitting power | 27 dBm |
About 500mW |
| Receiving sensitivity | -132 dBm |
Air data rate: 595kbps |
| Air data rate |
LoRa(bps)：0.595k~253.9k FLRC(bps)：260k~1.3M GFSK(bps)：125k~2M |
Defined by user via programming |
| Test distance | 8000m |
Test condition：clear and open area, antenna gain: 5dBi， antenna height: 2.5m，air data rate: 1kbps |
| Hardware Parameter | Value |
Remark |
| Size |
26.5 * 15 mm |
- |
| Antenna type | IPEX / PCB |
50Ω Impedance |
| Communication interface | SPI |
0～10Mbps |
| Package | SMD |
- |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply |
2.5 | 3.3 | 3.6 | V | ≥3.3 V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down |
| Transmitting current |
- |
580 | - | mA | Instant power consumption |
| Receiving current | - |
14.5 | - | mA | - |
| Sleep current | - | 2.0 | - | μA | Software is shut down |
| Operating temperature | -40 | 20 |
+85 | ℃ | - |
| Operating humidity | 10 | 60 |
90 | % | - |
| Storage temperature | -40 | 20 |
+125 | ℃ | - |
| Pin No. |
Pin Item | Pin Direction | Pin Application |
| 1 | VCC | - |
Power supply, 1.8V ~3.6V (recommend to add external ceramic filter capacitor) |
| 2 | GND | - |
Ground, connecting to power source reference ground |
| 3 | MISO_TX | Output |
SPI data output pin,can be used as UART transmitting pin |
| 4 | MOSI_RX | Input |
SPI data input pin,can be used as UART receiving pin |
| 5 | SCK_RTSN | Input |
SPI clock input pin,can be used as UART request transmitting pin |
| 6 | NSS_CTS | Input |
Module chip selection pin, used to start a SPI communication; and can be used as UART clearing transmitting pin |
| 7 | GND | - |
Ground, connecting to power source reference ground |
| 8 | RX_EN | Input |
LNA controlling pin. Valid under high level |
| 9 | TX_EN | Input |
PA controlling pin. Valid under high level |
| 10 | GND | - |
Ground, connecting to power source reference ground |
| 11 | NRESET | Input |
Chip reset initiation input pin, valid under low level, built-in 50k pull-up resistor |
| 12 | BUSY | Output |
Status indication (refer to SX1280 Datasheet) |
| 13 | DIO1 | Input/Output |
Configurable general IO interface (refer to SX1280 Datasheet) |
| 14 | DIO2 | Input/Output |
Configurable general IO interface (refer to SX1280 Datasheet) |
| 15 | DIO3 | Input/Output |
Configurable general IO interface (refer to SX1280 Datasheet) |
| 16 | GND | - |
Ground, connecting to power source reference ground |
n No
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The E28-2G4M27S 2.4GHz SPI +27dBm Enhanced Power LoRa Transceiver Module is based on original imported RFIC SX1280 from SEMTECH, adopts LoRa and FLRC And GFSK Modulation.
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