Tag Archives: display

LCD interface using I2C Module with Arduino

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I2C module with LCD display using Arduino

 How to interface PCF85574 module with arduino?
To connect LCD display 16×2 or 20×4 to Arduino you know you’ll need at least 6 wires to connect, it means sacrificing some IO’s that could be used for connecting other components such as sensors or motors. another way is to use 74HC595 Shift register for interfacing. In this tutorial we will discuss on PCF8574 I2C LCD Display Interface.
A module that can be used to circumvent this problem is the I2C Module for LCD Display with PCF8574 (datasheet ):

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MAX7219 7-segment display-Arduino

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MAX7219 Display Driver

The MAX7219/MAX7221 are compact, serial input/output common-cathode display drivers that interface microprocessors to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8×8 static RAM that stores each Continue reading MAX7219 7-segment display-Arduino →

Digital Voltmeter using Arduino

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Introduction

            7-segment displays are most popular in panel meters, It can show direct numerical value on display, It’s cost is low and display size bigger than LCD’s. Lets interface four digit display, most of the time four digits are enough to display data. Continue reading Digital Voltmeter using Arduino →

LED Bar-graph Display

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Introduction

LED bar-graph displays are much popular in battery level indication, water level indicator applications. Most of the inverter units have LED bar-graph display on its front panel. As we have seen in previous application we used only one LED to indicate battery level. With reference to above application we are showing voltage level on LED bar-graph display. Continue reading LED Bar-graph Display →

16×2 LCD Display interface with Arduino

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Introduction

In this tutorial we will learn How to interface 16×2 LCD display using Arduino UNO. LCD displays available in various sizes 8×1, 16×1, 16×2, 16×4, 20 Char x 4 Lines. These all displays can be interfaced using this tutorial. We are more focusing on 16×2 LCD. It is commonly used.

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