Add ble_presence binary sensor timeout config value. (#6024)

* Add binary sensor timeout config value.

* Add test

esphome/components/ble_presence/binary_sensor.py

@@ -8,6 +8,7 @@ from esphome.const import (
     CONF_IBEACON_MINOR,
     CONF_IBEACON_UUID,
     CONF_MIN_RSSI,
+    CONF_TIMEOUT,
 )
 
 CONF_IRK = "irk"
@@ -41,6 +42,7 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(CONF_IBEACON_MAJOR): cv.uint16_t,
             cv.Optional(CONF_IBEACON_MINOR): cv.uint16_t,
             cv.Optional(CONF_IBEACON_UUID): cv.uuid,
+            cv.Optional(CONF_TIMEOUT, default="5min"): cv.positive_time_period,
             cv.Optional(CONF_MIN_RSSI): cv.All(
                 cv.decibel, cv.int_range(min=-100, max=-30)
             ),
@@ -60,6 +62,7 @@ async def to_code(config):
     await cg.register_component(var, config)
     await esp32_ble_tracker.register_ble_device(var, config)
 
+    cg.add(var.set_timeout(config[CONF_TIMEOUT].total_milliseconds))
     if min_rssi := config.get(CONF_MIN_RSSI):
         cg.add(var.set_minimum_rssi(min_rssi))
 

esphome/components/ble_presence/ble_presence_device.h

@@ -59,11 +59,7 @@ class BLEPresenceDevice : public binary_sensor::BinarySensorInitiallyOff,
     this->check_minimum_rssi_ = true;
     this->minimum_rssi_ = rssi;
   }
-  void on_scan_end() override {
-    if (!this->found_)
-      this->publish_state(false);
-    this->found_ = false;
-  }
+  void set_timeout(uint32_t timeout) { this->timeout_ = timeout; }
   bool parse_device(const esp32_ble_tracker::ESPBTDevice &device) override {
     if (this->check_minimum_rssi_ && this->minimum_rssi_ > device.get_rssi()) {
       return false;
@@ -71,8 +67,7 @@ class BLEPresenceDevice : public binary_sensor::BinarySensorInitiallyOff,
     switch (this->match_by_) {
       case MATCH_BY_MAC_ADDRESS:
         if (device.address_uint64() == this->address_) {
-          this->publish_state(true);
-          this->found_ = true;
+          this->set_found_(true);
           return true;
         }
         break;
@@ -86,8 +81,7 @@ class BLEPresenceDevice : public binary_sensor::BinarySensorInitiallyOff,
       case MATCH_BY_SERVICE_UUID:
         for (auto uuid : device.get_service_uuids()) {
           if (this->uuid_ == uuid) {
-            this->publish_state(true);
-            this->found_ = true;
+            this->set_found_(true);
             return true;
           }
         }
@@ -111,16 +105,26 @@ class BLEPresenceDevice : public binary_sensor::BinarySensorInitiallyOff,
           return false;
         }
 
-        this->publish_state(true);
-        this->found_ = true;
+        this->set_found_(true);
         return true;
     }
     return false;
   }
+
+  void loop() override {
+    if (this->found_ && this->last_seen_ + this->timeout_ < millis())
+      this->set_found_(false);
+  }
   void dump_config() override;
   float get_setup_priority() const override { return setup_priority::DATA; }
 
  protected:
+  void set_found_(bool state) {
+    this->found_ = state;
+    if (state)
+      this->last_seen_ = millis();
+    this->publish_state(state);
+  }
   enum MatchType { MATCH_BY_MAC_ADDRESS, MATCH_BY_IRK, MATCH_BY_SERVICE_UUID, MATCH_BY_IBEACON_UUID };
   MatchType match_by_;
 
@@ -177,6 +181,8 @@ class BLEPresenceDevice : public binary_sensor::BinarySensorInitiallyOff,
   }
 
   bool found_{false};
+  uint32_t last_seen_{};
+  uint32_t timeout_{};
 };
 
 }  // namespace ble_presence

tests/test2.yaml

@@ -501,6 +501,7 @@ binary_sensor:
   - platform: ble_presence
     mac_address: AC:37:43:77:5F:4C
     name: ESP32 BLE Tracker Google Home Mini
+    timeout: 30s
   - platform: ble_presence
     service_uuid: 11aa
     name: BLE Test Service 16 Presence