Add set_threshold and get_value methods to ESP32TouchBinarySensor and add a test.

esphome/components/esp32_touch/esp32_touch.cpp

@@ -116,6 +116,7 @@ void ESP32TouchComponent::loop() {
       touch_pad_read(child->get_touch_pad(), &value);
     }
 
+    child->value_ = value;
     child->publish_state(value < child->get_threshold());
 
     if (this->setup_mode_) {
@@ -157,7 +158,12 @@ ESP32TouchBinarySensor::ESP32TouchBinarySensor(const std::string &name, touch_pa
     : BinarySensor(name), touch_pad_(touch_pad), threshold_(threshold) {}
 touch_pad_t ESP32TouchBinarySensor::get_touch_pad() const { return this->touch_pad_; }
 uint16_t ESP32TouchBinarySensor::get_threshold() const { return this->threshold_; }
-
+void ESP32TouchBinarySensor::set_threshold(uint16_t threshold) {
+  this->threshold_ = threshold;
+}
+uint16_t ESP32TouchBinarySensor::get_value () const {
+  return this->value_;
+}
 }  // namespace esp32_touch
 }  // namespace esphome
 

esphome/components/esp32_touch/esp32_touch.h

@@ -56,12 +56,15 @@ class ESP32TouchBinarySensor : public binary_sensor::BinarySensor {
 
   touch_pad_t get_touch_pad() const;
   uint16_t get_threshold() const;
+  void set_threshold(uint16_t);
+  uint16_t get_value() const;
 
  protected:
   friend ESP32TouchComponent;
 
   touch_pad_t touch_pad_;
   uint16_t threshold_;
+  uint16_t value_;
 };
 
 }  // namespace esp32_touch

tests/test1.yaml

@@ -618,6 +618,7 @@ binary_sensor:
     name: "ESP32 Touch Pad GPIO27"
     pin: GPIO27
     threshold: 1000
+    id: btn_left
   - platform: nextion
     page_id: 0
     component_id: 2
@@ -1118,6 +1119,16 @@ interval:
         if (true) return id(page1); else return id(page2);
     -  display.page.show_next: display1
     -  display.page.show_previous: display1
+  - interval: 2s
+    then:
+      - lambda: |-
+            static uint16_t btn_left_state = id(btn_left)->get_value();
+
+            ESP_LOGD("adaptive touch", "___  Touch Pad '%s' (T%u): val: %u state: %u tres:%u", id(btn_left)->get_name().c_str(), id(btn_left)->get_touch_pad(), id(btn_left)->get_value(), btn_left_state, id(btn_left)->get_threshold());
+            
+            btn_left_state = ((uint32_t) id(btn_left)->get_value()  +  63 * (uint32_t)btn_left_state) >> 6;
+
+            id(btn_left)->set_threshold(btn_left_state * 0.9);
 
 display:
 - platform: lcd_gpio