touch示例程序

进入touch工程目录

cd esp-dev-kits/esp32-s2-kaluga-1/examples/touch

配置工程

idf.py set-target esp32s2 menuconfig

Example Configuration—>(45) WS2812 GPIO 通过RGB灯看touch效果，所以选择GPIO45
Example Configuration—>touch pad type (ESP32-S2-KALUGA_V1.3) 开发板的版本号

编译
在这里你会发现编译错误，示例程序有个驱动结构体多了几个选项以及有个函数名对应不上，暂时不知道为什么，修改如下

diff --git a/esp32-s2-kaluga-1/examples/touch/main/main.c b/esp32-s2-kaluga-1/examples/touch/main/main.c
index 46b0401..b16863a 100644
--- a/esp32-s2-kaluga-1/examples/touch/main/main.c
+++ b/esp32-s2-kaluga-1/examples/touch/main/main.c
@@ -92,7 +92,7 @@ static void touchsensor_interrupt_cb(void *arg)
     evt.pad_num = touch_pad_get_current_meas_channel();
 
     if (evt.intr_mask & TOUCH_PAD_INTR_MASK_DONE) {
-        touch_pad_filter_read_baseline(evt.pad_num, &evt.pad_val);
+        touch_pad_read_benchmark(evt.pad_num, &evt.pad_val);
     }
 
     xQueueSendFromISR(que_touch, &evt, &task_awoken);
@@ -108,7 +108,7 @@ static void tp_example_set_thresholds(void)
 
     for (int i = 0; i < TOUCH_BUTTON_NUM; i++) {
         /*!< read baseline value */
-        touch_pad_filter_read_baseline(button[i], &touch_value);
+        touch_pad_read_benchmark(button[i], &touch_value);
         /*!< set interrupt threshold. */
         touch_pad_set_thresh(button[i], touch_value * button_threshold[i]);
         ESP_LOGI(TAG, "touch pad [%d] base %d, thresh %d", \
@@ -122,10 +122,10 @@ static void touchsensor_filter_set(touch_filter_mode_t mode)
     touch_filter_config_t filter_info = {
         .mode = mode,           /*!< Test jitter and filter 1/4. */
         .debounce_cnt = 1,      /*!< 1 time count. */
-        .hysteresis_thr = 3,    /*!< 3% */
+        //.hysteresis_thr = 3,    /*!< 3% */
         .noise_thr = 0,         /*!< 50% */
-        .noise_neg_thr = 0,     /*!< 50% */
-        .neg_noise_limit = 10,  /*!< 10 time count. */
+        //.noise_neg_thr = 0,     /*!< 50% */
+        //.neg_noise_limit = 10,  /*!< 10 time count. */
         .jitter_step = 4,       /*!< use for jitter mode. */
     };
     touch_pad_filter_set_config(&filter_info);

烧录