E49-900T20S Ebyte OEM/ODM nouvelle meilleure qualité 20DBM puissance de transmission ISM 915MHZ module de transmission de données sans fil
[Fréquence]：850~930MHz
[Pouvoir]：20dBm
[Distance]：2.5km
[Taille]：26*16mm
[Poids du produit]：2.1±0.1g
[Introduction]：E49-900T20S est un module sans fil ultra rentable introduit par Chengdu ebyte. Il existe quatre modes de fonctionnement. Chaque mode de transmission a ses propres caractéristiques et peut être utilisé dans divers scénarios d'application.
Magasin officiel| Main parameter | Description | Remark |
| Distance for reference | 2500m | Test condition：clear and open area, antenna gain:5dBi,antenna height:2.5m，air data rate:1.2kbps |
| FIFO | 54 Btye | Maximum capacity of single transmission, auto-sub-packing when exceeding |
| Cache capacity | 500 Btye | - |
| Modulation | GFSK | - |
| Communication interface | UART serial port | - |
| Package | SMD | - |
| Connector | 1.27mm | - |
| Size | 26*16mm | - |
| Antenna | IPEX/Stamp hole | 50 ohm impedance |
| Main parameter | Min. | Typ. | Max. | Unit | Remark |
| Operating voltage | 3.3 | 5 | 5.5 | V | Over 5.5V will permanently damage module |
| Operating frequency | 850 | 868 | 930 | MHz | Support ISM band |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down |
| TX current | - | 97.9 | - | mA | Instant power consumption |
| RX current | - | 12.04 | - | mA | - |
| Sleep current | - | 1.3 | - | μA | Software is shut down |
| Operating temperature | -40 | - | +85 | ℃ | Industrial design |
| Max Tx power | - | - | 20 | dBm | - |
| Receiving sensitivity | -114 | -115 | -116 | dBm | Air data rate is1.2kbps |
| Air data rate | 1.2k | 2.4k | 200k | bps | Controlled via user’s programming |