Tag Archives: 7-segment

Four Digit 7-Segment Display Interfacing with Arduino

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.

Problem Statement

We are making a Voltmeter using four digit 7-segment display, for this IC 74HC595 shift register is used instead of 7448 decoder, use of shift register gives few advantages such as you can display sign, few alphabets and control decimal point location. Continue reading Four Digit 7-Segment Display Interfacing with Arduino

ICL7107 Digital Voltmeter

The circuit given here is of digital voltmeter with LED 7-segment display using the ICL7107. It measures voltage from 0.00V to 99.9V. ICL7107 is a 3 1/2 digit A/D converters with LED 7-Segment Driver.

The Intersil ICL7106 and ICL7107 are high performance, low power, 31/2 digit A/D converters. Included are seven segment decoders, display drivers, a reference, and a clock. The ICL7106 is designed to interface with a liquid crystal display (LCD) and includes a multiplexed backplane drive; the ICL7107 will directly drive an instrument size light emitting diode (LED) display. Continue reading ICL7107 Digital Voltmeter

MAX7219 7-segment display-Arduino

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

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