Project Overview
This project uses the HC-SR04 Ultrasonic Distance Sensor to measure the distance of an object and display that reading on a 20×4 LCD I2C screen.
NodeMCU
How to Use Ultrasonic Sensor with NodeMCU ESP8266 ESP12E
Dolphins and bats navigate the world using ultrasounds, which are sounds with frequencies above the range of human hearing. In this tutorial, you will learn how to use ultrasounds to make exciting STEM projects.
How to Use Soil Moisture Sensor and NodeMCU ESP8266 with ThingSpeak IoT
This tutorial will teach you how to connect the Soil Moisture with the NodeMCU and upload the soil moisture data to the cloud using ThingSpeak.
How to Connect DHT11 with NodeMCU ESP8266 and Upload Data To ThingSpeak
This tutorial will show you how to connect the DHT11 with the NodeMCU ESP-12E and then log the data from the DHT11 to ThingSpeak.