[Chip solution]： STM32WLE5CCU6

[Carrier frequency]：850/930MHz

[Transmit power]： 22dBm

[Communication distance]： 5600m

[Product size]：14*20mm

[Introduction]：E77-900M22S is based on ST's newly launched STM32WLE5CCU6 (ARM Cortex-M4 + LoRa) SoC wireless communication module. It has the characteristics of long communication distance, low standby power consumption, strong anti-interference ability, rich interface resources, strong processing ability and small size.