Product Description:
LoRaWAN build with RHF76-052 and optional Antennas. RHF76-052 is designed by Ai-Thinker, it is a LoRaWAN UART modem & compatible device, supports LoRaWAN communication. It’s based on the RHF76-052 module and an embeded LoRaWAN stack. You can use M5 core as a host MCU to control this this modem with simple AT command or UART.

Product Features:
Build-in PCB Antenna
External Antenna Port

LoRaWAN Module Specification:
Model: RHF76-052
Version: C - Single Band 868/915 MHz
Radio IC: Semtech SX1276
Microcontroller: STM32L052C8T6
Package: SMD-33
Size: 28 x 23 x 3 mm
Weight: 3.2g
Interface: UART
Protocol: AT commands
Embedded LoRaWAN protocol stack
Frequency: 868/915 MHz
TXOP: 20dBm @ 868MHz/915MHz
Link budget: 160dB
Antenna: external (via PCB pad)
Supply voltage range: 1.8 ~ 3.6V
Typical supply voltage: 3.3V
Current usage in sleep mode: 1.45uA
Protocol: LoRaWAN
Work temperature: -40 ~+85C
Storage temperature: -40 ~ +90C, <90% RH
Certification: FCC, CE, IC, TELEC
Pinouts (datasheet, p. 6-7): SPI, USAR, I2C, USB, ADC, 10 GPIO

Applications:
Automatic meter reading
Home building automation
Remote irrigation system

Packing List:

1 * M5Stack LoRaWAN Module RHF76-052 with PCB Antenna