DFU Communication Mode
Two DFU communication modes are supported: wireless communication and wired communication.
- Wireless communication: This mode is also known as over-the-air (OTA) DFU (commonly referred to as OTA), which means firmware upgrade is achieved through wireless communication. Wireless communication via 2G/3G/4G network, Wi-Fi, and Bluetooth can all be used for DFU.
- Wired communication: Mainly include communication through UART, USB, and SPI.