Family Name = M5ATOM / Product Type = Development Board / Product Type = Relay Module / Program Memory KB = 520 / Memory Size MB = 4 / Memory Type = Flash / Memory Type = RAM / Interfaces = RS485 / Interfaces = Wi-Fi / Interfaces = Bluetooth / Wireless Connectivity = Wi-Fi / Wireless Connectivity = Bluetooth / Length mm = 72 / Width mm = 40 / Height mm = 30 / Weight g = 134