SDR/BLE/NFC
Different communication protocols to meet different scenarios.
1、SDR protocol is primarily used in retail settings.
2、BLE (Bluetooth Low Energy) is better suited for small retail or office environments with fewer terminal devices, where communication can be established via mobile phone Bluetooth.
3、WiFi protocol allows direct connectivity through existing WiFi access points, with power consumption as low as 1/20th of traditional WiFi solutions.
