【HarmonyOS HiSpark Wi-Fi IoT 套件试用连载】感应灯Demo

本文来源电子发烧友社区，作者：soon顺soon， 帖子地址：https://bbs.elecfans.com/jishu_2023113_1_1.html

分享一个比较简单的Demo
硬件模块：
HiSpark_WiFi_IoT_3861_CH340G_主板
HiSpark_WiFi_IoT_智能(炫彩)灯板

实现功能：
1.模拟红外人体感应灯，人到亮起红灯，人走红灯灭。
2.光敏电阻，暗环境亮绿灯，亮环境灭灯。

代码分享如下
1.在 applicationssamplewifi-iotappBUILD.gn 修改如下

1. import("//build/lite/config/component/lite_component.gni")
3. lite_component("app") {
4. features = [
5. "startup",
6. "sensor_light:sensor_light",
8. ]
9. }

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2.新建applicationssamplewifi-iotappsensor_light 目录并添加以下两个文件
applicationssamplewifi-iotappsensor_lightBUILD.gn
applicationssamplewifi-iotappsensor_lightsensor_light.c


3.applicationssamplewifi-iotappsensor_lightBUILD.gn修改如下

1. static_library("sensor_light") {
2. sources = [
3. "sensor_light.c"
4. ]
6. include_dirs = [
7. "//utils/native/lite/include",
8. "//kernel/liteos_m/components/cmsis/2.0",
9. "//base/iot_hardware/interfaces/kits/wifiiot_lite",
10. ]
11. }

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4.applicationssamplewifi-iotappsensor_lightsensor_light.c 修改如下

1. #include
2. #include
4. #include "ohos_init.h"
5. #include "cmsis_os2.h"
6. #include "wifiiot_gpio.h"
7. #include "wifiiot_gpio_ex.h"
8. #include "wifiiot_adc.h"
9. #include "wifiiot_errno.h"
11. static void SensorLightTask(void *arg)
12. {
13. (void)arg;
14. //人体感应ADC 值
15. unsigned short humandata = 0;
16. //光敏电阻ADC值
17. unsigned short lightdata = 0;
18. while(1){
19. if (AdcRead(WIFI_IOT_ADC_CHANNEL_3, &humandata, WIFI_IOT_ADC_EQU_MODEL_4, WIFI_IOT_ADC_CUR_BAIS_DEFAULT, 0)
20. == WIFI_IOT_SUCCESS) {
21. printf("[SensorLight] humandata =%dn",humandata);
22. }
23. if (AdcRead(WIFI_IOT_ADC_CHANNEL_4, &lightdata, WIFI_IOT_ADC_EQU_MODEL_4, WIFI_IOT_ADC_CUR_BAIS_DEFAULT, 0)
24. == WIFI_IOT_SUCCESS) {
25. printf("[SensorLight] lightdata =%dn",lightdata);
26. }
27. //从串口log中来看ADC值感应到是18xx，没有感应到是12x，所以这里用500做一个阈值
28. if(humandata > 500){
29. GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_10, WIFI_IOT_GPIO_VALUE1);//R on
30. }else{
31. GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_10, WIFI_IOT_GPIO_VALUE0);//R off
32. }
33. if(lightdata > 500){
34. GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_11, WIFI_IOT_GPIO_VALUE1);//G on
35. }else{
36. GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_11, WIFI_IOT_GPIO_VALUE0);//G off
37. }
38. usleep(10000);
39. }
41. }
43. static void SensorLight(void)
44. {
45. osThreadAttr_t attr;
47. GpioInit();
48. //RLED init
49. IoSetFunc(WIFI_IOT_IO_NAME_GPIO_10, WIFI_IOT_IO_FUNC_GPIO_10_GPIO);
50. GpioSetDir(WIFI_IOT_IO_NAME_GPIO_10, WIFI_IOT_GPIO_DIR_OUT);
52. //GLED init
53. IoSetFunc(WIFI_IOT_IO_NAME_GPIO_11, WIFI_IOT_IO_FUNC_GPIO_11_GPIO);
54. GpioSetDir(WIFI_IOT_IO_NAME_GPIO_11, WIFI_IOT_GPIO_DIR_OUT);
56. //BLED init
57. IoSetFunc(WIFI_IOT_IO_NAME_GPIO_12, WIFI_IOT_IO_FUNC_GPIO_12_GPIO);
58. GpioSetDir(WIFI_IOT_IO_NAME_GPIO_12, WIFI_IOT_GPIO_DIR_OUT);
60. attr.name = "SensorLightTask";
61. attr.attr_bits = 0U;
62. attr.cb_mem = NULL;
63. attr.cb_size = 0U;
64. attr.stack_mem = NULL;
65. attr.stack_size = 4096;
66. attr.priority = osPriorityNormal;
68. if (osThreadNew(SensorLightTask, NULL, &attr) == NULL) {
69. printf("[SensorLight] Falied to create SensorLightTask!n");
70. }
71. }
73. SYS_RUN(SensorLight);

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