Ebyte EWM290-400R30D AT commands Spread Spectrum Technology 10km 30dBm RS485 Interface 433MHz lora Wireless Module
EWM290-400R30D RS485 Interface LoRa Wireless Module PANCHIP PAN3060 CHIP Transmission distance up to 10km support AT command Firmware online upgrade [Transmitting power]：30dBm [Communication distance]：10km [Product size]：48*26mm [Product weight]：8.9±0.2g [Introduction]：EWM290-400R30D is a new generation of domestic LORA module developed by Ebyte. It is an RS485 interface module developed based on the PAN3060 RF chip of Panqi Micro. It has multiple transmission modes, works in the frequency band (410.125～493.125MHz) (default 433.125MHz), supports DC 5V power supply, and can be used with the E290-T series of the same frequency band series. It adopts the new generation of ChirpIoT™ spread spectrum technology, supports half-duplex wireless communication, supports air wake-up, wireless configuration, automatic relay, communication key, AT command, IAP upgrade and other functions, supports sub-packet length setting, and can provide customized development services. Radio frequency parameters Unit EWM290-400R30D Remark Maximum transmit power dBm 30 - Reference distance km 10 It is clear and spacious, with an antenna gain of 5dBi, an antenna height of 2.5 meters, and an air speed of 2.4kbps. Working frequency band MHz 410.125～493.125 Supports ISM bands Air speed bps 2.4k ～ 64.5k User Programming Control Electrical parameters unit EWM290-400R30D Remark Operating voltage V 4.5~5.5 ≥5V can guarantee the output power, and if it exceeds 5.5V, there is a risk of burning the module. Power consumption Emitting current mA 610 Instant power consumption Receive current mA 30 - Sleep current uA 410 - temperature Operating temperature ℃ -40～+85 Industrial design Storage temperature ℃ -40～+85 Industrial design Hardware parameters EWM290-400R30D Remark Crystal oscillator frequency 32MHz Industrial-grade high-precision crystal oscillator Modulation method LoRa The new generation of LoRa modulation technology Interface method PH2.0 Spacing 2.0mm, reserved 2.54mm holes Communication interface RS485 interface - Emission length 240 Byte Subcontract 32/64/128/240 bytes can be set through instructions Packaging method Pin type - Cache capacity 500Byte - Antenna interface SMA-K Equivalent impedance is about 50Ω size 26*48mm ±0.2mm Net weight of product 8.9g ±0.2g