[IC]:SX1281
[La fréquence]:2.4~2.5GHz
[La puissance]:27dBm
[La distance]:8.0km
[Interface]:SPI
[Le poids]:1.7±0.1g
[Introduction]:E28-2G4M27S est un petit module SMD 2,4 GHz (espacement des broches 1,27 mm) conçu par Chengdu Ebyte. Avec antenne PCB intégrée, interface SPI, il possède une puissance TX de 500 mW avec une consommation électrique.
| 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 | ℃ | - |