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esphome/esphome/components/ble_scanner/ble_scanner.h

35 lines
1.0 KiB
C++

#pragma once
#include <cinttypes>
#include <cstdio>
#include <ctime>
#include "esphome/core/component.h"
#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
#include "esphome/components/text_sensor/text_sensor.h"
#ifdef USE_ESP32
namespace esphome {
namespace ble_scanner {
class BLEScanner : public text_sensor::TextSensor, public esp32_ble_tracker::ESPBTDeviceListener, public Component {
public:
bool parse_device(const esp32_ble_tracker::ESPBTDevice &device) override {
// Format JSON using stack buffer to avoid heap allocations from string concatenation
char buf[128];
char addr_buf[MAC_ADDRESS_PRETTY_BUFFER_SIZE];
snprintf(buf, sizeof(buf), "{\"timestamp\":%" PRId64 ",\"address\":\"%s\",\"rssi\":%d,\"name\":\"%s\"}",
static_cast<int64_t>(::time(nullptr)), device.address_str_to(addr_buf), device.get_rssi(),
device.get_name().c_str());
this->publish_state(buf);
return true;
}
void dump_config() override;
};
} // namespace ble_scanner
} // namespace esphome
#endif