HC_SR04 in ESP32 linked to Alexa and Mqtt
use of FreeRTOS to manage Queue and cores , fauxmoEPS to use Amazon Alexa and DHT temperature sensor for better calculation of distance from the Sonar HC-SR04. induction Touch for future Alert (SOS,911...)
Sepcial thanks to Bruno Horta to teach me the Base of FreeRTOS and Rui Santos for Alexa Support (https://randomnerdtutorials.com/alexa-echo-with-esp32-and-esp8266/)