[Chip solution]： STM32WLE5CCU6
[Carrier frequency]：410~510 MHz
[Transmit power]： 22dBm
[Communication distance]： 5600m
[Product size]： 14*20mm
[Product weight]：1.6g±0.1g
[Introduction]：E77-400M22S is a standard LoRaWan node module designed and produced by Ebyte, with an operating frequency band of 410~510MHZ, supports LoRaWAN 1.0.3 EU433/CN470 standards, supports CLASS-A/CLASS-C node types, and supports two network access methods: ABP/OTAA. At the same time, the LoRa module has a variety of low-power modes, and the external communication interface uses a standard UART. Users can access the standard LoRaWAN network through simple configuration of AT commands, which is an excellent choice for current IoT applications.
| RF Parameter | Value |
Remark |
| Working frequency |
410~510 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 | ℃ | - |
