E77-915M30S Module RF sans fil basse consommation prenant en charge le protocole LoRaWAN 1.0.4. Solutions basées sur la puce STM32WLE5CCU6.
[Microcontrôleur]： STM32WLE5CCU6
[Fréquence]：902 à 928 MHz
[Puissance d'émission]：30 dBm
[Portée]： 4,4 km / 7,5 km
[Dimensions]：26 * 16 mm
[Introduction]：Le module à spectre étalé LoRa série E77-M est un module de nœud LoRaWAN standard développé et fabriqué indépendamment par ebyte. Il est entièrement compatible avec les normes de protocole LoRaWAN 1.0.3 (EU433/CN470) et 1.0.4 (EU868/US915/AU915/AS923/IN865/KR920/RU864), prend en charge les types de nœuds doubles de classe A/classe C et est compatible avec les modes d'accès réseau doubles OTAA/ABP.
Magasin officiel
| parameter | describe | |
| IC stands for IC full name | STM32WLE5CCU6 | |
| kernel | Cortex-M4 | |
| FLASH | 256 KB | |
| RAM | 64 KB | |
| Crystal oscillator frequency | 32MHz/32.768KHz, external temperature-compensated crystal oscillator | |
| interface | stamp perforation | |
| Communication interface | UART, comes with LoRaWAN protocol firmware pre-installed. | |
| UART, SPI, I²C, GPIO, and ADC require user-defined configuration. | ||
| Packaging method | patch | |
| Work environment | ||
| Operating temperature | -40℃～+85℃, industrial grade standard | |
| Operating humidity | 10–90% RH, no condensation | |
| Storage temperature | -40℃～+125℃ | |
| RF parameters | ||
| Transmit power | 30dBm = 1000mW, power adjustable in multiple levels, requires user-developed settings, applicable to E77-915M30S module . | |
| The E77-915M30S supports 902–928MHz. | ||
| Communication distance | LoRaWAN protocol | 4.4km, clear and open environment, antenna gain 3.5dBi, height 2m |
| Pass-through protocol | 7.5km, clear and open environment, antenna gain 3.5dBi, altitude 2m | |
| Spreading factor | 5～12 | |
| Receiver sensitivity | -118 dBm, GFSK, airspeed 1.2 kbps | |
| Blocking power | 10dBm | |
| Electrical parameters | ||
| Power supply voltage | The voltage range is 3.3 to 5.5V. When the operating voltage is ≥5V, the output power requirement can be met. Operating voltage exceeding 5.5V poses a risk of burnout. This technology is suitable for the E77-915M30S module . | |
| Communication level | 3.3V, using 5.0V TTL requires a level converter. | |
| Emission current | ≈670mA, instantaneous power consumption @30dBm, 5V power supply, suitable for E77-915M30S module | |
| Received current | ≈21mA, suitable for E77-915M30S module | |
| Dormant current | ≈3uA, software shutdown, applicable to E77-915M30S module | |