node red software raspberry pi gateway

{"cid":"91199119","title":"RS232 RS485 USB Raspberry Pi Gateway With Open Source Software Node RED","imgUrl":"https:\/\/img.ismap.com\/nimg\/d5\/bc\/9c914c8ac3dc8410576438a1e811-200x200-1.jpg","attrs":{"Price":"USD95~270\/PCS","Brand Name":"IOTROUTER","Model Number":"EG8000Mini","Minimum Order Quantity":"1PCS","Delivery Time":"1 WEEK","Certification":"CE FCC RoHs","Place of Origin":"Sichuan, CHINA","Payment Terms":"L\/C, T\/T, Western Union","Supply Ability":"50000PCS\/MONTH","Packaging Details":"270*180*6mm CARTON PACKAGE","Material":"Galvanized Steel Sheet","Interface":"RS485\/RS232\/2USB\/4DI\/4DO\/4AI","Protocol":"MQTT\/HTTP\/TCP\/UDP\/WEBSOCKET","CPU":"ARM Cortex-A72 4*1.5G","Storage":"1G + 8G","Operating Temperature":"-20~80\u2103","Storage Temperature":"-20~85\u2103","Environment Humidity":"10-90%RH (non-condensing)","Cooling Method":"Heat sink \/ dissipation silicone","Rated Voltage":"DC12V, DC9~28V(Working Range)","Product Name":"USB Raspberry Pi Gateway"}}