diff --git a/board/TencentOS_tiny_EVB_MX/KEIL/sensor_e53_ia1_e2e_demo/TencentOS_tiny.uvoptx b/board/TencentOS_tiny_EVB_MX/KEIL/sensor_e53_ia1_e2e_demo/TencentOS_tiny.uvoptx
new file mode 100644
index 00000000..119cf92a
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_MX/KEIL/sensor_e53_ia1_e2e_demo/TencentOS_tiny.uvoptx
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diff --git a/board/TencentOS_tiny_EVB_MX/KEIL/sensor_e53_ia1_e2e_demo/TencentOS_tiny.uvprojx b/board/TencentOS_tiny_EVB_MX/KEIL/sensor_e53_ia1_e2e_demo/TencentOS_tiny.uvprojx
new file mode 100644
index 00000000..4fe0987a
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_MX/KEIL/sensor_e53_ia1_e2e_demo/TencentOS_tiny.uvprojx
@@ -0,0 +1,910 @@
+
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+ ### uVision Project, (C) Keil Software
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+ Keil.STM32L4xx_DFP.2.2.0
+ http://www.keil.com/pack
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diff --git a/board/TencentOS_tiny_EVB_MX/KEIL/sensor_e53_ia1_e2e_demo/startup_stm32l431xx.s b/board/TencentOS_tiny_EVB_MX/KEIL/sensor_e53_ia1_e2e_demo/startup_stm32l431xx.s
new file mode 100644
index 00000000..05d40343
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_MX/KEIL/sensor_e53_ia1_e2e_demo/startup_stm32l431xx.s
@@ -0,0 +1,404 @@
+;********************** COPYRIGHT(c) 2017 STMicroelectronics ******************
+;* File Name : startup_stm32l431xx.s
+;* Author : MCD Application Team
+;* Description : STM32L431xx Ultra Low Power devices vector table for MDK-ARM toolchain.
+;* This module performs:
+;* - Set the initial SP
+;* - Set the initial PC == Reset_Handler
+;* - Set the vector table entries with the exceptions ISR address
+;* - Branches to __main in the C library (which eventually
+;* calls main()).
+;* After Reset the Cortex-M4 processor is in Thread mode,
+;* priority is Privileged, and the Stack is set to Main.
+;* <<< Use Configuration Wizard in Context Menu >>>
+;*******************************************************************************
+;*
+;* Redistribution and use in source and binary forms, with or without modification,
+;* are permitted provided that the following conditions are met:
+;* 1. Redistributions of source code must retain the above copyright notice,
+;* this list of conditions and the following disclaimer.
+;* 2. Redistributions in binary form must reproduce the above copyright notice,
+;* this list of conditions and the following disclaimer in the documentation
+;* and/or other materials provided with the distribution.
+;* 3. Neither the name of STMicroelectronics nor the names of its contributors
+;* may be used to endorse or promote products derived from this software
+;* without specific prior written permission.
+;*
+;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+;* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+;* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+;* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+;* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+;* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+;* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+;* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+;* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+;*
+;*******************************************************************************
+;
+; Amount of memory (in bytes) allocated for Stack
+; Tailor this value to your application needs
+; Stack Configuration
+; Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
+;
+
+Stack_Size EQU 0x400
+
+ AREA STACK, NOINIT, READWRITE, ALIGN=3
+Stack_Mem SPACE Stack_Size
+__initial_sp
+
+
+; Heap Configuration
+; Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
+;
+
+Heap_Size EQU 0x100
+
+ AREA HEAP, NOINIT, READWRITE, ALIGN=3
+__heap_base
+Heap_Mem SPACE Heap_Size
+__heap_limit
+
+ PRESERVE8
+ THUMB
+
+
+; Vector Table Mapped to Address 0 at Reset
+ AREA RESET, DATA, READONLY
+ EXPORT __Vectors
+ EXPORT __Vectors_End
+ EXPORT __Vectors_Size
+
+__Vectors DCD __initial_sp ; Top of Stack
+ DCD Reset_Handler ; Reset Handler
+ DCD NMI_Handler ; NMI Handler
+ DCD HardFault_Handler ; Hard Fault Handler
+ DCD MemManage_Handler ; MPU Fault Handler
+ DCD BusFault_Handler ; Bus Fault Handler
+ DCD UsageFault_Handler ; Usage Fault Handler
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD SVC_Handler ; SVCall Handler
+ DCD DebugMon_Handler ; Debug Monitor Handler
+ DCD 0 ; Reserved
+ DCD PendSV_Handler ; PendSV Handler
+ DCD SysTick_Handler ; SysTick Handler
+
+ ; External Interrupts
+ DCD WWDG_IRQHandler ; Window WatchDog
+ DCD PVD_PVM_IRQHandler ; PVD/PVM1/PVM2/PVM3/PVM4 through EXTI Line detection
+ DCD TAMP_STAMP_IRQHandler ; Tamper and TimeStamps through the EXTI line
+ DCD RTC_WKUP_IRQHandler ; RTC Wakeup through the EXTI line
+ DCD FLASH_IRQHandler ; FLASH
+ DCD RCC_IRQHandler ; RCC
+ DCD EXTI0_IRQHandler ; EXTI Line0
+ DCD EXTI1_IRQHandler ; EXTI Line1
+ DCD EXTI2_IRQHandler ; EXTI Line2
+ DCD EXTI3_IRQHandler ; EXTI Line3
+ DCD EXTI4_IRQHandler ; EXTI Line4
+ DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1
+ DCD DMA1_Channel2_IRQHandler ; DMA1 Channel 2
+ DCD DMA1_Channel3_IRQHandler ; DMA1 Channel 3
+ DCD DMA1_Channel4_IRQHandler ; DMA1 Channel 4
+ DCD DMA1_Channel5_IRQHandler ; DMA1 Channel 5
+ DCD DMA1_Channel6_IRQHandler ; DMA1 Channel 6
+ DCD DMA1_Channel7_IRQHandler ; DMA1 Channel 7
+ DCD ADC1_IRQHandler ; ADC1
+ DCD CAN1_TX_IRQHandler ; CAN1 TX
+ DCD CAN1_RX0_IRQHandler ; CAN1 RX0
+ DCD CAN1_RX1_IRQHandler ; CAN1 RX1
+ DCD CAN1_SCE_IRQHandler ; CAN1 SCE
+ DCD EXTI9_5_IRQHandler ; External Line[9:5]s
+ DCD TIM1_BRK_TIM15_IRQHandler ; TIM1 Break and TIM15
+ DCD TIM1_UP_TIM16_IRQHandler ; TIM1 Update and TIM16
+ DCD TIM1_TRG_COM_IRQHandler ; TIM1 Trigger and Commutation
+ DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
+ DCD TIM2_IRQHandler ; TIM2
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD I2C1_EV_IRQHandler ; I2C1 Event
+ DCD I2C1_ER_IRQHandler ; I2C1 Error
+ DCD I2C2_EV_IRQHandler ; I2C2 Event
+ DCD I2C2_ER_IRQHandler ; I2C2 Error
+ DCD SPI1_IRQHandler ; SPI1
+ DCD SPI2_IRQHandler ; SPI2
+ DCD USART1_IRQHandler ; USART1
+ DCD USART2_IRQHandler ; USART2
+ DCD USART3_IRQHandler ; USART3
+ DCD EXTI15_10_IRQHandler ; External Line[15:10]
+ DCD RTC_Alarm_IRQHandler ; RTC Alarm (A and B) through EXTI Line
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD SDMMC1_IRQHandler ; SDMMC1
+ DCD 0 ; Reserved
+ DCD SPI3_IRQHandler ; SPI3
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD TIM6_DAC_IRQHandler ; TIM6 and DAC1&2 underrun errors
+ DCD TIM7_IRQHandler ; TIM7
+ DCD DMA2_Channel1_IRQHandler ; DMA2 Channel 1
+ DCD DMA2_Channel2_IRQHandler ; DMA2 Channel 2
+ DCD DMA2_Channel3_IRQHandler ; DMA2 Channel 3
+ DCD DMA2_Channel4_IRQHandler ; DMA2 Channel 4
+ DCD DMA2_Channel5_IRQHandler ; DMA2 Channel 5
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD COMP_IRQHandler ; COMP Interrupt
+ DCD LPTIM1_IRQHandler ; LP TIM1 interrupt
+ DCD LPTIM2_IRQHandler ; LP TIM2 interrupt
+ DCD 0 ; Reserved
+ DCD DMA2_Channel6_IRQHandler ; DMA2 Channel 6
+ DCD DMA2_Channel7_IRQHandler ; DMA2 Channel 7
+ DCD LPUART1_IRQHandler ; LP UART1 interrupt
+ DCD QUADSPI_IRQHandler ; Quad SPI global interrupt
+ DCD I2C3_EV_IRQHandler ; I2C3 event
+ DCD I2C3_ER_IRQHandler ; I2C3 error
+ DCD SAI1_IRQHandler ; Serial Audio Interface 1 global interrupt
+ DCD 0 ; Reserved
+ DCD SWPMI1_IRQHandler ; Serial Wire Interface 1 global interrupt
+ DCD TSC_IRQHandler ; Touch Sense Controller global interrupt
+ DCD 0 ; Reserved
+ DCD 0 ; Reserved
+ DCD RNG_IRQHandler ; RNG global interrupt
+ DCD FPU_IRQHandler ; FPU
+ DCD CRS_IRQHandler ; CRS interrupt
+
+__Vectors_End
+
+__Vectors_Size EQU __Vectors_End - __Vectors
+
+ AREA |.text|, CODE, READONLY
+
+; Reset handler
+Reset_Handler PROC
+ EXPORT Reset_Handler [WEAK]
+ IMPORT SystemInit
+ IMPORT __main
+
+ LDR R0, =SystemInit
+ BLX R0
+ LDR R0, =__main
+ BX R0
+ ENDP
+
+; Dummy Exception Handlers (infinite loops which can be modified)
+
+NMI_Handler PROC
+ EXPORT NMI_Handler [WEAK]
+ B .
+ ENDP
+HardFault_Handler\
+ PROC
+ EXPORT HardFault_Handler [WEAK]
+ B .
+ ENDP
+MemManage_Handler\
+ PROC
+ EXPORT MemManage_Handler [WEAK]
+ B .
+ ENDP
+BusFault_Handler\
+ PROC
+ EXPORT BusFault_Handler [WEAK]
+ B .
+ ENDP
+UsageFault_Handler\
+ PROC
+ EXPORT UsageFault_Handler [WEAK]
+ B .
+ ENDP
+SVC_Handler PROC
+ EXPORT SVC_Handler [WEAK]
+ B .
+ ENDP
+DebugMon_Handler\
+ PROC
+ EXPORT DebugMon_Handler [WEAK]
+ B .
+ ENDP
+PendSV_Handler PROC
+ EXPORT PendSV_Handler [WEAK]
+ B .
+ ENDP
+SysTick_Handler PROC
+ EXPORT SysTick_Handler [WEAK]
+ B .
+ ENDP
+
+Default_Handler PROC
+
+ EXPORT WWDG_IRQHandler [WEAK]
+ EXPORT PVD_PVM_IRQHandler [WEAK]
+ EXPORT TAMP_STAMP_IRQHandler [WEAK]
+ EXPORT RTC_WKUP_IRQHandler [WEAK]
+ EXPORT FLASH_IRQHandler [WEAK]
+ EXPORT RCC_IRQHandler [WEAK]
+ EXPORT EXTI0_IRQHandler [WEAK]
+ EXPORT EXTI1_IRQHandler [WEAK]
+ EXPORT EXTI2_IRQHandler [WEAK]
+ EXPORT EXTI3_IRQHandler [WEAK]
+ EXPORT EXTI4_IRQHandler [WEAK]
+ EXPORT DMA1_Channel1_IRQHandler [WEAK]
+ EXPORT DMA1_Channel2_IRQHandler [WEAK]
+ EXPORT DMA1_Channel3_IRQHandler [WEAK]
+ EXPORT DMA1_Channel4_IRQHandler [WEAK]
+ EXPORT DMA1_Channel5_IRQHandler [WEAK]
+ EXPORT DMA1_Channel6_IRQHandler [WEAK]
+ EXPORT DMA1_Channel7_IRQHandler [WEAK]
+ EXPORT ADC1_IRQHandler [WEAK]
+ EXPORT CAN1_TX_IRQHandler [WEAK]
+ EXPORT CAN1_RX0_IRQHandler [WEAK]
+ EXPORT CAN1_RX1_IRQHandler [WEAK]
+ EXPORT CAN1_SCE_IRQHandler [WEAK]
+ EXPORT EXTI9_5_IRQHandler [WEAK]
+ EXPORT TIM1_BRK_TIM15_IRQHandler [WEAK]
+ EXPORT TIM1_UP_TIM16_IRQHandler [WEAK]
+ EXPORT TIM1_TRG_COM_IRQHandler [WEAK]
+ EXPORT TIM1_CC_IRQHandler [WEAK]
+ EXPORT TIM2_IRQHandler [WEAK]
+ EXPORT I2C1_EV_IRQHandler [WEAK]
+ EXPORT I2C1_ER_IRQHandler [WEAK]
+ EXPORT I2C2_EV_IRQHandler [WEAK]
+ EXPORT I2C2_ER_IRQHandler [WEAK]
+ EXPORT SPI1_IRQHandler [WEAK]
+ EXPORT SPI2_IRQHandler [WEAK]
+ EXPORT USART1_IRQHandler [WEAK]
+ EXPORT USART2_IRQHandler [WEAK]
+ EXPORT USART3_IRQHandler [WEAK]
+ EXPORT EXTI15_10_IRQHandler [WEAK]
+ EXPORT RTC_Alarm_IRQHandler [WEAK]
+ EXPORT SDMMC1_IRQHandler [WEAK]
+ EXPORT SPI3_IRQHandler [WEAK]
+ EXPORT TIM6_DAC_IRQHandler [WEAK]
+ EXPORT TIM7_IRQHandler [WEAK]
+ EXPORT DMA2_Channel1_IRQHandler [WEAK]
+ EXPORT DMA2_Channel2_IRQHandler [WEAK]
+ EXPORT DMA2_Channel3_IRQHandler [WEAK]
+ EXPORT DMA2_Channel4_IRQHandler [WEAK]
+ EXPORT DMA2_Channel5_IRQHandler [WEAK]
+ EXPORT COMP_IRQHandler [WEAK]
+ EXPORT LPTIM1_IRQHandler [WEAK]
+ EXPORT LPTIM2_IRQHandler [WEAK]
+ EXPORT DMA2_Channel6_IRQHandler [WEAK]
+ EXPORT DMA2_Channel7_IRQHandler [WEAK]
+ EXPORT LPUART1_IRQHandler [WEAK]
+ EXPORT QUADSPI_IRQHandler [WEAK]
+ EXPORT I2C3_EV_IRQHandler [WEAK]
+ EXPORT I2C3_ER_IRQHandler [WEAK]
+ EXPORT SAI1_IRQHandler [WEAK]
+ EXPORT SWPMI1_IRQHandler [WEAK]
+ EXPORT TSC_IRQHandler [WEAK]
+ EXPORT RNG_IRQHandler [WEAK]
+ EXPORT FPU_IRQHandler [WEAK]
+ EXPORT CRS_IRQHandler [WEAK]
+
+WWDG_IRQHandler
+PVD_PVM_IRQHandler
+TAMP_STAMP_IRQHandler
+RTC_WKUP_IRQHandler
+FLASH_IRQHandler
+RCC_IRQHandler
+EXTI0_IRQHandler
+EXTI1_IRQHandler
+EXTI2_IRQHandler
+EXTI3_IRQHandler
+EXTI4_IRQHandler
+DMA1_Channel1_IRQHandler
+DMA1_Channel2_IRQHandler
+DMA1_Channel3_IRQHandler
+DMA1_Channel4_IRQHandler
+DMA1_Channel5_IRQHandler
+DMA1_Channel6_IRQHandler
+DMA1_Channel7_IRQHandler
+ADC1_IRQHandler
+CAN1_TX_IRQHandler
+CAN1_RX0_IRQHandler
+CAN1_RX1_IRQHandler
+CAN1_SCE_IRQHandler
+EXTI9_5_IRQHandler
+TIM1_BRK_TIM15_IRQHandler
+TIM1_UP_TIM16_IRQHandler
+TIM1_TRG_COM_IRQHandler
+TIM1_CC_IRQHandler
+TIM2_IRQHandler
+I2C1_EV_IRQHandler
+I2C1_ER_IRQHandler
+I2C2_EV_IRQHandler
+I2C2_ER_IRQHandler
+SPI1_IRQHandler
+SPI2_IRQHandler
+USART1_IRQHandler
+USART2_IRQHandler
+USART3_IRQHandler
+EXTI15_10_IRQHandler
+RTC_Alarm_IRQHandler
+SDMMC1_IRQHandler
+SPI3_IRQHandler
+TIM6_DAC_IRQHandler
+TIM7_IRQHandler
+DMA2_Channel1_IRQHandler
+DMA2_Channel2_IRQHandler
+DMA2_Channel3_IRQHandler
+DMA2_Channel4_IRQHandler
+DMA2_Channel5_IRQHandler
+COMP_IRQHandler
+LPTIM1_IRQHandler
+LPTIM2_IRQHandler
+DMA2_Channel6_IRQHandler
+DMA2_Channel7_IRQHandler
+LPUART1_IRQHandler
+QUADSPI_IRQHandler
+I2C3_EV_IRQHandler
+I2C3_ER_IRQHandler
+SAI1_IRQHandler
+SWPMI1_IRQHandler
+TSC_IRQHandler
+RNG_IRQHandler
+FPU_IRQHandler
+CRS_IRQHandler
+
+ B .
+
+ ENDP
+
+ ALIGN
+
+;*******************************************************************************
+; User Stack and Heap initialization
+;*******************************************************************************
+ IF :DEF:__MICROLIB
+
+ EXPORT __initial_sp
+ EXPORT __heap_base
+ EXPORT __heap_limit
+
+ ELSE
+
+ IMPORT __use_two_region_memory
+ EXPORT __user_initial_stackheap
+
+__user_initial_stackheap
+
+ LDR R0, = Heap_Mem
+ LDR R1, =(Stack_Mem + Stack_Size)
+ LDR R2, = (Heap_Mem + Heap_Size)
+ LDR R3, = Stack_Mem
+ BX LR
+
+ ALIGN
+
+ ENDIF
+
+ END
+
+;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****
diff --git a/components/connectivity/Eclipse-Paho-MQTT/wrapper/src/mqtt_wrapper.c b/components/connectivity/Eclipse-Paho-MQTT/wrapper/src/mqtt_wrapper.c
index 857a86cc..83fd0d98 100644
--- a/components/connectivity/Eclipse-Paho-MQTT/wrapper/src/mqtt_wrapper.c
+++ b/components/connectivity/Eclipse-Paho-MQTT/wrapper/src/mqtt_wrapper.c
@@ -1,6 +1,6 @@
#include "mqtt_wrapper.h"
-#define BUFFER_LEN 200
+#define BUFFER_LEN 256
static MQTTPacket_connectData mqtt_form_connect_packet(mqtt_con_opt_t *opt)
{
diff --git a/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo.c b/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo.c
new file mode 100644
index 00000000..b7998e5c
--- /dev/null
+++ b/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo.c
@@ -0,0 +1,418 @@
+#include "e53_ia1_e2e_demo.h"
+#include "e53_ia1_e2e_demo_config.h"
+#include "cJSON.h"
+#include "E53_IA1.h"
+#include "mcu_init.h"
+
+#define USE_ESP8266
+//#define MQTT_SERVER_IP "iotcloud-mqtt.gz.tencentdevices.com"
+#define MQTT_SERVER_IP "111.230.127.136"
+#define MQTT_SERVER_PORT "1883"
+
+const char OPEN = 1;
+const char CLOSE = 0;
+
+int sock_id = 0;
+
+void sensor_init(void) {
+ Init_E53_IA1();
+}
+
+void sensor_read(void) {
+ E53_IA1_Read_Data();
+}
+
+int light_intensity_low() {
+ return E53_IA1_Data.Lux < (float)20.0 && E53_IA1_Data.LightMode == CLOSE;
+}
+
+int light_intensity_high() {
+ return E53_IA1_Data.Lux > (float)20.0 && E53_IA1_Data.LightMode == OPEN;
+}
+
+int temperature_too_high() {
+ return E53_IA1_Data.Lux > (float)20.0 && E53_IA1_Data.LightMode == OPEN;
+ // return E53_IA1_Data.Temperature > (float)30.0 && E53_IA1_Data.MotorMode == OPEN;
+}
+
+void turnon_fan() {
+ motor_control(OPEN);
+}
+
+void turnoff_fan() {
+ motor_control(CLOSE);
+}
+
+void turnon_light() {
+ light_control(OPEN);
+}
+
+void turnoff_light() {
+ light_control(CLOSE);
+}
+
+void print_sensor_data() {
+ printf("{\"temperature\":%.2f,\"humidity\":%.2f,\"light_intensity\":%.2f,\"motor\":%d,\"light\":%d}\n",
+ E53_IA1_Data.Temperature,
+ E53_IA1_Data.Humidity,
+ E53_IA1_Data.Lux,
+ E53_IA1_Data.MotorMode,
+ E53_IA1_Data.LightMode);
+}
+
+int parse_data(uint8_t *data) {
+ //{"motor":0,"light":1}
+ cJSON* cjson = cJSON_Parse((char *)data);
+ cJSON *cjsonret = NULL;
+ int motor;
+ int light;
+ if(cjson == NULL) {
+ printf("json pack into cjson error...");
+ return -1;
+ } else {
+ cJSON_Print(cjson);
+ }
+ cjsonret = NULL;
+ cjsonret = cJSON_GetObjectItem(cjson, "motor");
+ if(cjsonret != NULL) {
+ motor = cjsonret->valueint;
+ printf("motor=%d\n", motor);
+ if(motor == 1) {
+ //power on relay
+ motor_control(OPEN);
+ } else if(motor == 0) {
+ //power off relay
+ motor_control(CLOSE);
+ }
+ }
+ cjsonret = NULL;
+ cjsonret = cJSON_GetObjectItem(cjson, "light");
+ if(cjsonret != NULL) {
+ light = cjsonret->valueint;
+ printf("light=%d\n", light);
+ if(light == 1) {
+ //power on relay
+ light_control(OPEN);
+ } else if(light == 0) {
+ //power off relay
+ light_control(CLOSE);
+ }
+ }
+ cJSON_Delete(cjson);
+ return 0;
+}
+
+int receive_data(void) {
+ static int count = 1;
+ uint8_t read_data[100] = {0};
+ int read_len;
+ mqtt_sub_opt_t sub_opt;
+ sub_opt.count = 1;
+ sub_opt.dup = 0;
+ sub_opt.id = 1;
+ sub_opt.req_qos = 0;
+ sub_opt.topic = MQTT_SUBSCRIBE_TOPIC;
+
+ printf("receive: \r\n");
+ read_len = tos_mqtt_receive(sub_opt.topic, strlen(sub_opt.topic), read_data, sizeof(read_data));
+ if (read_len >= 0) {
+ printf("MQTT count: %d\r\n", count++);
+ printf("---------->topic: %s, payload: %s, payload_len: %d\n", sub_opt.topic, read_data, read_len);
+ parse_data(read_data);
+ }
+ return 0;
+}
+
+int publish_data(void) {
+ mqtt_pub_opt_t pub_opt;
+ pub_opt.dup = 0;
+ pub_opt.qos = 0;
+ pub_opt.retained = 0;
+ pub_opt.id = 0;
+ pub_opt.topic = MQTT_PUBLISH_TOPIC;
+
+ char buffer[256] = {0};
+ snprintf(buffer, sizeof(buffer),
+ "{\"type\":\"update\",\"state\":{\"desired\":null,\"reported\":{\"temperature\":%.2f,\"humidity\":%.2f,\"light_intensity\":%.2f,\"motor\":%d,\"light\":%d}},\"version\":0,\"clientToken\":\"clientToken\"}",
+ E53_IA1_Data.Temperature,
+ E53_IA1_Data.Humidity,
+ E53_IA1_Data.Lux,
+ E53_IA1_Data.MotorMode,
+ E53_IA1_Data.LightMode);
+
+ pub_opt.payload = (unsigned char *)buffer;
+ pub_opt.payload_len = strlen(buffer);
+ printf("\r\nreport--->topic:%s\r\ndata(%d):%s\r\n", pub_opt.topic, pub_opt.payload_len, pub_opt.payload);
+ if (tos_mqtt_publish(sock_id, &pub_opt) != 0) {
+ printf("publish failed!!!\n");
+ }
+ return 0;
+}
+
+int network_init() {
+#ifdef USE_ESP8266
+ extern int esp8266_sal_init(hal_uart_port_t uart_port);
+ extern int esp8266_join_ap(const char *ssid, const char *pwd);
+ esp8266_sal_init(HAL_UART_PORT_0);
+ // int ret = esp8266_join_ap("royye", "Gch626262");
+ int ret = esp8266_join_ap("iottest", "iot12345");
+ return ret;
+#endif
+}
+
+int mqtt_connect(void) {
+ mqtt_con_opt_t con_opt;
+ con_opt.keep_alive_interval = 2000;
+ con_opt.cleansession = 1;
+ con_opt.username = MQTT_USR_NAME;
+ con_opt.password = MQTT_PASSWORD;
+ con_opt.client_id = MQTT_CLIENT_ID;
+
+ int try = 0;
+ while(try++ < 10) {
+ sock_id = tos_mqtt_connect(MQTT_SERVER_IP, MQTT_SERVER_PORT, &con_opt);
+ if (sock_id != -1) {
+ printf("tos_mqtt_connect success. sock_id %d \r\n", sock_id);
+ return 0;
+ }
+ transport_close(sock_id);
+ printf("tos_mqtt_connect fail. sock_id %d \r\n", sock_id);
+ osDelay(2000);
+ }
+ return -1;
+}
+
+int mqtt_subscribe(void) {
+ mqtt_sub_opt_t sub_opt;
+ sub_opt.count = 1;
+ sub_opt.dup = 0;
+ sub_opt.id = 1;
+ sub_opt.req_qos = 0;
+ sub_opt.topic = MQTT_SUBSCRIBE_TOPIC;
+
+ int try = 0;
+ while (try++ < 10) {
+ if (tos_mqtt_subscribe(sock_id, &sub_opt) == 0) {
+ printf("subscribe topic:%s success\n", sub_opt.topic);
+ return 0;
+ }
+ osDelay(2000);
+ }
+ printf("subscribe topic:%s fail\n", sub_opt.topic);
+
+ return -1;
+}
+
+void qcloud_agent(void) {
+ // 网络初始化
+ int ret = network_init();
+ if (ret < 0) {
+ printf("network_init fail\n");
+ return;
+ }
+
+ // 建立到IoT hub的MQTT连接
+ ret = mqtt_connect();
+ if (ret < 0) {
+ printf("mqtt_connect fail\n");
+ return;
+ }
+
+ // 订阅设备主题
+ ret = mqtt_subscribe();
+ if (ret < 0) {
+ printf("mqtt_subscribe fail\n");
+ return;
+ }
+
+ sensor_init();
+ while(1) {
+ sensor_read();
+ // 发布传感器数据
+ publish_data();
+ // 接收控制消息
+ receive_data();
+ osDelay(1000);
+ }
+}
+
+
+void one_loop_task(void *arg) {
+ sensor_init();
+ while(1) {
+ sensor_read();
+ print_sensor_data();
+ // 光照强度太低 => 打开补光灯
+ if (light_intensity_low()) {
+ turnon_light(); // 实时性如何保证?
+ // 光照强度过高 => 关闭补光灯
+ } else if (light_intensity_high()) {
+ turnoff_light();
+ }
+
+ // 其他业务逻辑
+ printf("delay 5 senconds \n");
+ osDelay(5000);
+ }
+}
+
+void monitor_task(void) {
+ sensor_init();
+ while(1) {
+ sensor_read();
+ // 光照强度太低 => 打开补光灯
+ if (light_intensity_low()) {
+ turnon_light();
+ // 光照强度过高 => 关闭补光灯
+ } else if (light_intensity_high()) {
+ turnoff_light();
+ }
+ osDelay(100);
+ }
+}
+
+void normal_task() {
+ while(1) {
+ printf("do something for 5 senconds \n");
+ print_sensor_data();
+ osDelay(5000);
+ }
+}
+
+void network_test_task() {
+ // 初始化WiFi模组,连接AP
+ extern int esp8266_sal_init(hal_uart_port_t uart_port);
+ extern int esp8266_join_ap(const char *ssid, const char *pwd);
+ esp8266_sal_init(HAL_UART_PORT_0);
+ int ret = esp8266_join_ap("iottest", "iot12345");
+ if (ret < 0) {
+ printf("network_init fail\n");
+ return;
+ }
+
+ // 调用SAL层接口,建立Socket连接
+ int socket_id = -1;
+ uint8_t recv_data[128];
+ socket_id = tos_sal_module_connect("45.40.201.56", "8080", TOS_SAL_PROTO_TCP);
+ if (socket_id == -1) {
+ printf("TCP connect failed\r\n");
+ return;
+ } else {
+ printf("TCP connect success! fd: %d\n", socket_id);
+ }
+
+ // 调用SAL层接口,消息收发
+ while (1) {
+ tos_sal_module_send(socket_id, (const void *)"Hello TencentOS tiny!\r\n",
+ strlen("Hello TencentOS tiny!\r\n"));
+
+ int recv_len = tos_sal_module_recv_timeout(socket_id, recv_data, sizeof(recv_data), 8000);
+ if (recv_len < 0) {
+ printf("receive error\n\r");
+ } else if (recv_len == 0) {
+ printf("receive none\n");
+ } else {
+ recv_data[recv_len] = 0;
+ printf("receive len: %d\n recv_data: %s\n", recv_len, recv_data);
+ }
+
+ tos_sleep_ms(2000);
+ }
+}
+
+void entry_task1(void *arg)
+{
+ while (K_TRUE) {
+ printf("entry_task1\n");
+ tos_task_delay(1000);
+ }
+}
+
+void entry_task2(void *arg)
+{
+ while (K_TRUE) {
+ printf("entry_task2\n");
+ osDelay(2000);
+ }
+}
+
+void entry_task1(void *arg);
+#define TASK1_STK_SIZE 512
+k_stack_t stack_task1[TASK1_STK_SIZE];
+k_task_t task1;
+
+#define TASK2_STK_SIZE 512
+void entry_task2(void *arg);
+osThreadDef(entry_task2, osPriorityNormal, 1, TASK2_STK_SIZE);
+
+// 联网测试
+osThreadDef(network_test_task, osPriorityNormal, 1, 1024);
+
+// 端云对接
+osThreadDef(qcloud_agent, osPriorityNormal, 1, 8192);
+
+// 大循环的方式
+osThreadDef(one_loop_task, osPriorityNormal, 1, 1024);
+
+// 1. 高优先级任务
+#define MONITOR_STK_SIZE 1024
+osThreadDef(monitor_task, osPriorityHigh, 1, MONITOR_STK_SIZE);
+
+// 2. 普通优先级任务
+#define NORMAL_STK_SIZE 512
+osThreadDef(normal_task, osPriorityNormal, 1, NORMAL_STK_SIZE);
+
+void application_entry(void *arg) {
+ // 端云对接
+ osThreadCreate(osThread(qcloud_agent), NULL);
+}
+
+/*
+// tos_task_create 创建任务1
+(void)tos_task_create(&task1,
+ "task1", // 任务名称
+ entry_task1, // 任务入口
+ NULL, // 任务参数
+ 4, // 优先级
+ stack_task1, // 任务栈空间
+ TASK1_STK_SIZE,// 任务栈大小
+ 0); // 时间片
+
+// cmsis api 创建任务2
+osThreadCreate(osThread(entry_task2), NULL);
+
+// 大循环的方式
+sensor_init();
+while(1) {
+ sensor_read();
+ print_sensor_data();
+
+ // 光照强度太低 => 打开补光灯
+ if (light_intensity_low()) {
+ turnon_light(); // 实时性如何保证?
+ // 光照强度过高 => 关闭补光灯
+ } else if (light_intensity_high()) {
+ turnoff_light();
+ }
+
+ // 其他业务逻辑
+ printf("do something for 5 senconds \n");
+ osDelay(5000);
+}
+
+
+// 多任务,基于优先级抢占
+// 高优先级任务: 读取传感器,并实时监控传感器值
+osThreadCreate(osThread(monitor_task), NULL);
+// 普通优先级任务:其他业务逻辑
+osThreadCreate(osThread(normal_task), NULL);
+
+// 联网测试
+osThreadCreate(osThread(network_test_task), NULL);
+
+// 端云对接
+osThreadCreate(osThread(agent_task), NULL);
+
+*/
+
+
diff --git a/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo.h b/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo.h
new file mode 100644
index 00000000..21f28fb4
--- /dev/null
+++ b/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo.h
@@ -0,0 +1,16 @@
+#ifndef __MQTT_DEMO_H__
+#define __MQTT_DEMO_H__
+
+#include "mcu_init.h"
+#include "tos_at.h"
+#include "string.h"
+#include "cmsis_os.h"
+#include "sal_module_wrapper.h"
+
+#include "mqtt_wrapper.h"
+
+extern void application_entry(void *arg);
+extern void motor_control(char mode);
+extern void light_control(char mode);
+#endif /* __APP_DEMO_H__ */
+
diff --git a/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo_config.h b/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo_config.h
new file mode 100644
index 00000000..4038c105
--- /dev/null
+++ b/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo_config.h
@@ -0,0 +1,12 @@
+#ifndef _H_TOS_FARM_AI_CONFIG_H
+#define _H_TOS_FARM_AI_CONFIG_H
+
+#define MQTT_PRODUCT_ID "U1BZWHF7F9"
+#define MQTT_DEV_NAME "dev_01"
+#define MQTT_CLIENT_ID "U1BZWHF7F9dev_01"
+#define MQTT_USR_NAME "U1BZWHF7F9dev_01;12010126;O3I57;1611533066"
+#define MQTT_PASSWORD "6ebcf20c9f7f725b5bcf18a85cc7a49479f489eea65946f92ba18a51a135c89e;hmacsha256"
+#define MQTT_SUBSCRIBE_TOPIC "U1BZWHF7F9/dev_01/data"
+#define MQTT_PUBLISH_TOPIC "$shadow/operation/U1BZWHF7F9/dev_01"
+
+#endif