HC-SR04 Ultrasonic Sensor; LEDs (Red, Yellow, Green) Buzzer; Resistors; Jumper wires; Breadboard; How to Use. Set up the hardware according to the circuit diagram above. Open the code file in Arduino ...

The PMS7003 datasheet provides a circuit diagram of the PMS7003 connected to a generic Host MCU. This is how the sensor will be connected to the NodeMCU, with some minor modifications. For this ...

Circuit Diagram 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 ...

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 first NodeMCU is placed at the flood area, whilst the second NodeMCU acts as the control unit. Transmitter unit consisting of first NodeMCU, an ultrasonic sensor will detect the water level during ...