This setup shows how to set up ESP8266 with Ultrasonic Sensor HC-SR04 and MQTT, for example for monitoring the water level of a cistern. The sensor sends the measured distance from the water surface ...

Components Used ESP8266 or any compatible microcontroller with WIFI modüle HC-SR04 Ultrasonic Sensor LEDs (Red, Yellow, Green) Buzzer Resistors Jumper wires Breadboard How to Use Set up the hardware ...

The schematic shown in picture is circuit diagram of project in which nodemcu esp8266 12E is used as main microcontroller which can be connected to internet and receive command from user through ...

This paper presents the development of a smart flood monitoring system using Blynk platform as a medium of data transmission. This system is based on two NodeMCU development board integrated using ...

The development of smart flood monitoring system using ultrasonic sensor with blynk applications Abstract: This paper presents the development of a smart flood monitoring system using Blynk platform ...