[Solutions à puce]: STM32WLE5CCU6
[Fréquence porteuse]:868~930MHz
[Puissance de transmission]: 22dBm
[Distance de communication]: 5600m
[Taille du produit]:14*20mm
[Poids du produit]:1.6g±0.1g
[Introduction]:E77-900M22S est un module de nœud LoraWan standard développé par Ebyte. Il prend en charge les normes LoRaWAN 1.0.4 EU868, US915, AU915, AS923, IN865, KR920 et RU864. Il prend en charge les types de nœuds CLASS-A/CLASS-C et prend en charge les deux ABP. /OTAA. En même temps, le module dispose d'une variété de modes de faible consommation. L'interface de communication externe utilise l'UART standard. Les utilisateurs peuvent accéder au réseau LoRaWAN standard via une configuration simple via les commandes AT. Applications de choses.
| RF Parameter | Value | Remark |
| Working frequency | 850~930 MHz | Support ISM band |
| Transmitting power | 0~21.5 dBm | The software is adjustable, and users need to develop their own settings |
| Receiving sensitivity | -118 dBm | GFSK,air speed1.2kbps |
| Reference distance(PCB/IPX) | 5600m | Clear and open environment, maximum power, antenna gain 3.5dBi, height 2m, airspeed 1.2kbps |
| Hardware Parameter | Value | Remark |
IC full name | STM32WLE5CCU6 | —— |
core | Cortex-M4 | —— |
FLASH | 256 KB | —— |
RAM | 64 KB | —— |
Crystal frequency | 32MHz/32.768KHz | External crystal |
Size | 14 * 20 mm | —— |
Antenna type | IPEX/stamp hole | Equivalent Impedance Approx.50Ω |
Communication interface | UART、SPI、I²C、GPIO、ADC | Users need to develop their own settings |
Packaging | Patch stamp hole | —— |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| voltage | 1.8 | 3.3 | 3.6 | V | ≥3.3V Guaranteed output power Exceeding 3.6V will permanently burn the module |
communication level | - | 3.3 | - | V | Using 5.0V TTL is recommended to add level conversion |
Emission current | - | 128 | - | mA | Instantaneous power consumption |
| receive current | - | 14 | - | mA | —— |
| sleep current | - | 3 | - | μA | software shutdown |
Operating temperatur | -40 | 20 | 85 | ℃ | - |
Working humidity | 10 | 60 | 90 | % | - |
Storage temperature | -40 | 20 | 125 | ℃ | - |