ROM 128KB / RAM 20KB Ultra-small Size LoRaWAN Module Features: * Low power consumption: 1

4uA sleep current in WOR mode * Ultra Small size: 14mm X 20mm * 18 pins SMT package * Operating frequency band option * User-friendly interface LPUART/USART/I2C/USB 、 2×ADC 、 10×GPIOs * High performance: RHF0M003-LF20: TXOP=20dBm@434MHz /470MHz RHF0M003-HF20: TXOP=20dBm @868MHz/915MHz -139dBm sensitivity for SF12 with 125KHz BW 160dB link budget, suitable for long range * Support global LoRaWAN protocol ， RHF0M003-LF20: EU433, CN470 and CN470Prequel ， RHF0M003-HF20: EU868, US915 and US915Hybrid, CN779, AU915, AS923 , KR920 , IN865 。