Arduino Tutorials

pH measurement is utilized in many applications like agriculture, water testing, and in laboratory testing. Here in this article, we are going to study how to connect a pH sensor to Arduino Uno for pH reading measurement. We are going to discuss the required parts, sensor output, connection, and code. Working, Pin Output, and Onboard Components Materials Required: Name Quantity Arduino Uno 1 16×2 Alphanumeric LCD Display 1 I2C Module for LCD 1 Gravity Analog pH Sensor 1 Dupont Cables As needed Breadboard 1 Hardware overview Working The … Read more

Hello, have you ever wanted to control an LED just by making a noise, like clapping your hands? Well, you’re in the right place! In this guide, I’ll show you how to use a sound sensor with an Arduino Uno to make that happen in a super simple way. Don’t worry if you’re new to … Read more

In this tutorial, I will explain how to connect a 7-segment display with 4 digits to an Arduino. Before I start explaining the connection details, I just want to point out a few basic things about this setup. This setup consumes almost all of the digital pins on boards like the Arduino Uno or Leonardo. Most displays have 12 breakout pins that connect either directly to the Arduino or through a resistor. Another thing to mention here is that these displays do not require any connection of Ground, … Read more

Most Arduino owners, at some point, want to output text or results to a screen for their projects. Most of these begin with the use of a two-line LCD because they’re readily available, cheap, and have tons of example programs already available. It uses most of your digital I/O lines and only prints text- no graphs, shapes, or icons. The small yet versatile SSD1306 OLED measures diagonally only at 0.96 inches. It is a mono digital display using only two pins (SCL and SDA) to communicate, perfect for graphing or displaying geometrical shapes. You can power it directly from the Arduino with 5V … Read more