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 If you require more pins for your project to connect more buttons, sensors or LEDs, GPIO expanders can help. Essentially, these expanders offer additional GPIOs when your board doesn’t provide enough pins. In this tutorial we will learn how to use PCF8574 I2C GPIO Expander with Arduino UNO or ESP32 Watch the Video! Also …

 In this Tutorial we are going to make a Battery Level Indicator using LCD I2C 20 X 4 Display . This approach can be used to display anything that requires a level indication such as batteries, water level, temperature, humidity, etc. For the demonstration we are going to simulate the signal with a potentiometer …

 In this tutorial we are going to make an I2C Scanner that will display an I2C Adress of the connected sensor or a module. This is very useful in cases where we do not know what is the I2C Address of a certain sensor or module that we would like to use in our …

  In this tutorial we will learn how to read the SD card text file line by line. Watch the Video! Note: You can use other Displays such as OLED, but make sure that you use a board with enough memory like Arduino Mega,etc Also check out this tutorials: Arduino Nano: Measure Distance With Ultrasonic …

In this tutorial we will learn how to make a simple Menu with buttons using Arduino and the I2C LCD. Watch the Video! Step 1: What You Will Need LCD Display I2C 20X4 (if you use diferent LCD then make sure that you specify the right Columns and Rows in the Visuino component) 2X Buttons …

In this tutorial we will learn how to use DHT12 I2C Humidity and Temperature Sensor with Arduino and display the values on the OLED Display. Watch the video! Step 1: What You Will Need Arduino Uno or any other Arduino board Breadboard Jumper wires OLED Display Visuino software: Download here Step 2: The Circuit Connect DHT12 …