Posts Tagged ‘MAX7219’

Programming an 8 digit 7-segment display, the easy way, using a Max7219

Friday, February 17th, 2017

Allan Schwartz shows off the easy way to interface 7-segment displays using the MAX7219: Previously, in part 1 of my blog posting Programming a 7-segment Display, using just Arduino digital pins (the hard way) we had demonstrated how to hook up a pair of 7-segment displays to an Arduino, treating...

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Posted in how-to, Interface, LEDs | 5 Comments »

Serial seven segment LED display shield

Wednesday, December 7th, 2016

Raj over at Embedded Lab has just finished a new project article about a serial seven segment LED display shield: Seven segment LED displays are brighter, more attractive, and provide a far viewing distance as well as a wider viewing angle compared to LCD displays. This project describes a serial seven...

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Posted in Arduino, LEDs | No Comments »

Happy Valentines day!

Sunday, February 14th, 2016

Sjaak built this blinky heart for his girlfriend this Valentines day. It is based on a MAX7219 and a PIC16f1823: My girlfriend persuaded me to start this hobby side project and as a favor I made her this blinky heart. I don’t want to buy a standard trumpery from the shop,...

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Posted in DIY | No Comments »

LED matrices and MAX7219 ic’s

Tuesday, November 4th, 2014

A 10 60mmx60mm Led matrices controlled by an ATmega328 + 10 MAX7219 ic's from Bajdi Electronics: Made a big LED matrix this week using 10 60mmx60mm LED matrices. I designed the PCB's myself and had them made in China. Every PCB has a MAX7219 and a header to plug the LED matrix...

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Posted in Arduino, LEDs | 7 Comments »

Portable bluetooth-enabled scrolling LED matrix display

Thursday, October 30th, 2014

An open-source cascadable 8x8 LED matrix module using Arduino and MAX7219 from Embedded Lab: Easy Matrix is a cascadable 8x8 LED matrix module with the MAX7219 chip on board, which allows to control the display with only 3 I/O pins from microcontroller. Multiple Easy Matrix modules can be easily cascaded to...

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Posted in Arduino, LEDs | No Comments »

chipKIT Project 5: Digital stopwatch on seven segment LED display

Tuesday, May 6th, 2014

Raj of Embedded Lab has a series of chipKIT tutorials.  This 5th project will show you how to build a digital stopwatch  on seven segment LED display with the chipKIT Uno32: In this project, we will use the chipKIT Uno32 board to build a digital stopwatch capable of timing minutes, seconds, and 1/10th...

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Posted in how-to, LEDs | No Comments »

High-voltage seven segment LED display driver with SPI interface

Tuesday, October 15th, 2013

Raj writes: This is about my new project, which is a High-Voltage Seven Segment LED Driver with a serial interface. The goal is to simplify the interface of bigger seven segment display modules to 5V microcontrollers. The project provides a TTL SPI interface of MAX7219 to input display data from...

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Posted in Interface, LEDs | 2 Comments »

Testing a MAX7219 LED array with Bus Pirate

Thursday, October 10th, 2013

Frank over at RaspberryAlphaOmega writes: After thinking about how to drive the MAX7219 LED array I built yesterday, it occurred to me that maybe this is an ideal time to get to the bottom of how to use the Bus Pirate board that I failed to use with a MCP3002 ADC...

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Posted in Bus Pirate | No Comments »

The MAX7219 LED display controller – real or fake?

Thursday, June 27th, 2013

John Boxall over at Tronixstuff has a detailed review of the differences between the real MAX7219 and the others: A few people have been asking me of late, and there’s only one way to find out … so over the last month I ordered eight random “MAX7219s” from different suppliers on...

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Posted in components, kit biz, LEDs | No Comments »

New version of MAX7219 based 4-digit serial seven segment LED display

Tuesday, February 26th, 2013

Embedded Lab's new version of MAX7219 based 4-digit serial seven segment LED display: This (SPI7SEGDISP4.40-1R) is a revised version of the previous SPI seven segment LED display (4 digit) board that displayed numerals and decimal points. The new version has a better quality seven segment LED display (LTC-4727JS) with three...

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Posted in LEDs | No Comments »

8 digit 7 segment display with SPI interface

Wednesday, January 9th, 2013

Raj designed this 8 digit 7 segment display with an SPI interface using a MAX7219 display driver: The SPI7SEGDISP8.56 module can be interfaced with any microcontroller that has 3 I/O pins available. If the microcontroller features a built-in hardware SPI, then the display module can be interfaced as a SPI...

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Posted in Arduino, LEDs | 10 Comments »

Recent Comments

  • readybrek: Anyone got a any recommendations for a budget-priced hot air station?
  • William: lol I'm happy to waste 3c for each program/debug cycle... but probably not the time spent soldering a new device down to a proto board!...
  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...