EBYTE E77-900M22S Small size anti-interference 868~930MHz LoRaWan module wireless communication module

E77-900M22S UART interface LoraWan node module low power consumption support AT commands [Chip solution]： STM32WLE5CCU6 [Carrier frequency]：868~930MHz [Transmit power]： 22dBm [Communication distance]： 5600m [Product size]：14*20mm [Product weight]：1.6g±0.1g [Introduction]：E77-900M22S is a standard LoraWan node module developed by Ebyte. It supports LoRaWAN 1.0.4 EU868, US915, AU915, AS923, IN865, KR920, RU864 standards, CLASS-A/CLASS-C node types, and ABP/OTAA network access methods. At the same time, the 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. It is an excellent choice for current IoT applications. 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 ℃ -