Content for MAX7219

MAX7219

Serially Interfaced, 8-Digit, LED Display Drivers The MAX7219/MAX7221 are compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) 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 8x8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs. The MAX7221 is compatible with SPI™, QSPI™, and MICROWIRE™, and has slew-rate-limited segment drivers to reduce EMI.

Kerbal Controller - the Basics

“The goal of this tutorial is not to show how to build a specific KSP controller, but to show many of the common design choices and their pros and cons. The idea is to guide you to make your own …

Project  Cube Clock

Cube Clock

“A tiny 8x8 matrix clock that automatically rotates the display when the cube is rotated. Recently I stubbled across the Lexon Flip Travel Reversible LCD Alarm Clock. It got me wondering about a clock that always showed the time in …

Make a LED Matrix Box With Multiple Effects

“The use of LED Matrix Max7219 is quite common nowadays. You can use it for many different applications such as: Clocks, Scrolling Text, advertising… However, the sample code related to Max7219 I found relatively difficult for newbies, so I tried …

Led Matrix Clock using Arduino And RTC Module

“Today iam going to show you how to make led matrix clock With Arduino & Rtc. this is a simple project does not require high knowledge Today iam going to show you how to make led matric clock With Arduino & RTC …

Home Security Smart Clock IoT Emergency App Notification

“I made a Clock that not only display Time,Date, Temp & Hum but you can send message to the clock via Mobile App (Blynk) from anywhere in the World as long as you are connected to internet. And you can …

Hourglass Using Arduino

“In ancient times people used Hourglass to measure the passage of time. Hourglass is a simple device that consists of two glass bulbs that are connected vertically with a narrow neg and that allows the flow of sand or fluid …

LED Circuit Sculpture

“While surfing on social media I got to know about circuit sculpture where in we create freeform structure out of electronic components which resemble real life objects. It can anything like a car, tree, humanoid object or even a satellite …

RoboCat: a Pet Without the Mess

“This will not be a tutorial, just me reflecting on the process and sharing it! Welcome to RoboCat, a cute pet without the mess! The RoboCat responds to any sounds above a certain range and if you press the red …

Function Generator (AD9833 Based)

“Hi, I am Gursimran Singh In this Instructable, I will guide you through on how to make a “functional” function generator, which can be very helpful when working with electronic circuits. A function generator can generate different kinds of signals …

Tiny Word Clock

“A 3D printed tiny word clock build using a 8x8 LED matrix and ATtiny1614 microprocessor. Story Back in 2017, I built a large Word Clock designed by wabbitguy. Recently I came across a word clock based on a 8x8 Matrix …