Ebyte Semtech SX1281 UART 7Km Gamme 2.4GHz 27dBm SMD 25*40.5mm CE RoHs FCC LoRa Transmetteur RF Module
[IC]：SX1281
[La fréquence]：2.4~2.5GHz
[Du pouvoir]：27dBm
[Distance]：7km
[Taille]：40.5*25mm
[Lester]：4.8±0.1g
[Poids du produit]：4.8±0.1g
[Introduction]：E28-2G4T27SX est un module UART basé sur SEMTECH SX1281, il adopte une transmission transparente et fonctionne sur la bande 2,4 GHz. Il adopte les modulations LoRa, FLRC et GFSK. Il dispose d'un emballage SMD avec des interfaces d'antenne IPX et PCB, compatible avec une tension de port IO de 3,3 V et 5 V.
Magasin officiel| Main Parameters | Performance | Note | |
| Min. | Max | ||
| Power supply（V） | 2.3 | 5.5 | Voltage over 5.5V will cause permanent damage to module |
| Blocking power [dBm] | - | 10 | Chances of burn is slim when modules are used inshort distance |
| Operating temperature [℃] | -40 | +85 | - |
| Main Parameters | Performance | Note | ||
| Min. | Typ | Max | ||
| Voltage supply [V] | 2.3 | 5.0 | 5.5 | ≥5.0V ensures output power |
| Communication level [V] | - | 3.3 | - | For 5V TTL, it may be at risk of burning down |
| Operating temperature [℃] | -40 | - | +85 | - |
| Frequency [MHz] | 2400 | - | 2500 | ISM band |
| Transmitting current[mA] | - | 500 | - | Instant power consumption |
| Receiving current[mA] | - | 27 | - | - |
| Turn-off current[μA] | - | 10 | - | Software is shut down |
| Transmitting power [dBm] | 26.5 | 27 | 27.5 | - |
| Receiving sensitivity [dBm] | -130 | -132 | -134 | Air data rate: 115.2Kbps |
| Air data rate（bps） | 1k | 1k | 2M | Defined by user via programming |
| Main parameter | Description | Note |
| Distance | 7000m | Test condition：clear and open area, antenna gain: 5dBi，antennaheight: 2.5m，air data rate: 1kbps |
| FIFO | 121 Byte | Max. Transmitting length per packet |
| 221 Byte | Continuous transmission mode | |
| Cache | 2048 Byte | - |
| Modulation | GFSK | - |
| LoRa | - | |
| FLRC | - | |
| Interface | UART | TTL |
| Package | SMD | - |
| Connector | 1.27mm | - |
| Size | 40.5*25mm | - |
| Antenna | IPEX/Sample hole | 50Ω Impedance |