Tuya IoT Link SDK for Embedded C(beta)
Table of Contents
Overview
Tuya IoTOS Link SDK provides core capabilities, such as device connection, uplink and downlink communication, and OTA across platforms and operating systems. The SDK is implemented in the C programming language and does not depend on the specific device platform and OS environment. It only needs to support the TCP/IP protocol stack and provide the necessary system-dependent interfaces of the SDK to complete the integration.
Get started
Prerequisites
Ubuntu and Debian
sudo apt-get install make cmake libqrencode-devClone the repository
git clone https://github.com/tuya/tuya-iot-link-sdk-embedded-c.git --recurse-submodulesCompile the code
mkdir build && cd build
cmake ..
makeRun the demo
./bin/switch_demoUsage example
- Initialize a client object tuya_iot_client_t client. tuya_iot_config_t is used to initialize the product ID, authorization information, and other configuration parameters.
/* Instantiate the client */
tuya_iot_client_t client;
/* Instantiate the config */
tuya_iot_config_t config = {
.software_ver = "1.0.0",
.productkey = <Product ID>,
.uuid = <UUID>,
.authkey = <AUTHKEY>,
.event_handler = user_event_handler_on
};
/* Initialize the client */
tuya_iot_init(&client, &config);- Define application layer event callbacks. The callback function is used for the application layer to receive SDK event notifications, such as data point (DP) delivery and cloud connection status notifications:
/* Tuya SDK event callback */
void user_event_handler_on(tuya_iot_client_t* client, tuya_event_msg_t* event)
{
switch(event->id){
case TUYA_EVENT_DP_RECEIVE:
TY_LOGI("DP recv:%s", (const char*)event->data);
/* After receiving the DP distribution,
the DP data needs to be reported to synchronize the APP status. */
break;
case TUYA_EVENT_MQTT_CONNECTED:
TY_LOGI("Device MQTT Connected!");
break;
...
default:
break;
}
}- Start the Tuya Link SDK service.
tuya_iot_start(&client);- A loop is called to yield the current thread to the underlying Tuya Link SDK client.
tuya_iot_yield(&client);Report example:
/* Boolean */
const char bool_value[] = {"{\"101\":true}"};
tuya_iot_dp_report_json(&client, bool_value);
/* Integer */
const char int_value[] = {"{\"102\":123}"};
tuya_iot_dp_report_json(&client, int_value);
/* String*/
const char string_value[] = {"{\"103\":\"helloworld\"}"};
tuya_iot_dp_report_json(&client, string_value);
/* Enum */
const char enum_value[] = {"{\"104\":\"auto\"}"};
tuya_iot_dp_report_json(&client, enum_value);
/* RAW */
const char raw_value[] = {"{\"105\":\"aGVsZA==\"}"};
tuya_iot_dp_report_json(&client, raw_value);
/* Multiple combinations */
const char multiple_value[] = {"{\"101\":true,\"102\":123,\"103\":\"hellowrold\",\"104\":\"auto\",\"105\":\"aGVsZA==\"}"};
tuya_iot_dp_report_json(&client, multiple_value);License
Distributed under the MIT License. For more information, see LICENSE.