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[IC]：SX1278
[Frequency]：410～493MHz
[Power]：30dBm
[Distance]：10km
[Product weight]：5.5±0.1g
[Size]：24*38.5mm
[Introduction]：E32-400M30S is a self-developed, 433/470MHz LoRa TM SMD wireless module with the maximum transmission power of 1W which is based on the SX1278 produced by Semtech in the United States.
Main parameter Min Type Max Unit Remark Operating voltage 3.3 5 5.5 V ≥5.5 V ensures output power Communication level - 3.3 - V - Operating temperature -40 - +85 ℃ Industrial grade Operating frequency 410 - 493 MHz - TX current - 650 - mA - RX current - 19 - mA - Sleep current - 2 - μA - Max TX power - 30 - dBm - Receiving sensitivity -123 -124 -125 dBm Air data rate is 1.2 kbps Main parameter Description Remark Reference distance 10Km Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate: 250 kbps FIFO 256Byte Maximum length of single send Crystal Oscillator 32MHz Passive crystals Protocol LoRaTM(recommended) FSK/GFSK/MSK/GMSK/OOK Package SMD Spacing of 2.54 mm Interface 2.54mm Sample hole Communication interface SPI 0～10Mbps Size 24*38.5mm - Antenna Sample hole / IPEX 50 ohm impedance