Device Initialization

This topic describes the initialization process of the TuyaOS Integrated SDK in terms of initialization phases, use cases, and related APIs.

Background

Initialization is made up of a set of interfaces needed to build a minimal software model for an NB-IoT device. The interfaces initialize the hardware, TuyaOS software, and applications.

How to

The product ID (PID) is required to bind a device with the Tuya Developer Platform. Call the following interfaces in sequence to set the PID during initialization.

1. Set the PID: tuya_user_api_set_product_key
2. Set the event capture callback: tuya_user_api_event_loop_set_cb
3. Start event capture: tuya_user_api_event_loop_start
4. Set the downlink data point (DP) messaging callback: tuya_user_api_dp_write_default_cb
5. Set the record-type data callback: tuya_user_api_dp_report_record_ack_register_cb

```mermaid graph TD 1[Device power- --> --> --> 4["pre_init() (invoked by user layer) --> 5["Basics initialization (RF, PMS, and time zone) --> --> 7["Tuya NB-IoT initialization (watchdog,
network LED indicator, DP, OTA update) --> 8["device_init() (user application
initialization and development)"] end ```

API description

For more information, see OpenCPU SDK.