Arduino 8x8 led matrix heart code. Wiring to the matrix is really easy.

Arduino 8x8 led matrix heart code Sending Bytes to an 8x8 LED Matrix. Sep 20, 2018 · The first is an WS2812 8×8 64 LED Matrix LED 5050 module. Testing all 64 LED of the 8x8 LED matrix. LED matrices to come in a variety of formats, including single colour, dual color, multi-color, and RGB LED matrices Oct 2, 2024 · The order of the pins is assigned in two arrays in the code. In this project, I will use a MAX7219 Dot Matrix LED Module to avoid ugly 8x8 Matrix LED Arduino Project. Read up about this project on . Detailed instructions, code, wiring diagram, video tutorial, and line-by-line code explanation are provided to help you quickly get started with Arduino Nano. 1 // Mario's Ideas 2 // Testing all 64 leds in 8x8 LED matrix by Testing all 64 LED of the 8x8 LED matrix game arduino atmega328p arduino-uno shift-register joystick-control arduino-game 16x2-clcd-display 8x8-led 8x8-led-matrix 8x8-dot-display 16x2lcd Updated Apr 21, 2023 C Jul 26, 2023 · In this tutorial, I will explore the functionalities of a very interesting piece of hardware: an 8x8 LED Matrix. Jan 11, 2023 · LED matrix 8×8 is a system of 64 interconnected LEDs that are arranged in 8 columns and 8 rows. We will make three examples, with the first one we will explain the basic working principle of the MAX7219 , in the second example we will see how the scrolling text on the 8×8 LED Matrix works, and in the third example we will control them via Bluetooth and a custom build Android application. Jun 3, 2013 · Hello to everyone!! I'm new in this forum and I haven't found the subforum of presentations, if someone is kind enough to tell me I'd appreciate it. It is difficult not to see this type of hardware in our everyday lives, since it is used in industrial displays, destination signs in transports, danger signalization, clocks, and sports displays. BEATING_HEART. We’re the ideal introduction to Autodesk, a global leader in design and make technology. So without wasting your time let's start. It uses SPI protocol and has 5 pins (VCC, GND, SCK, MOSI and CE) which I connected to the appropriate Arduino Uno pins - SCK to 13, MOSI to 11, and CE to 10 and of course the power pins. Matrix as a 64-bit long integer. I tried to wire things up correctly on the breadboard several times but failed at having success. Hi, today we will display heart ♥ on 8×8 led display using arduino UNO. For most uses, you’ll see about 1-2A of current per panel. There are a number of online options as well. Connect CLK to the I2C clock - on Arduino UNO thats Analog #5 (or SCL), on the Leonardo its Digital #3, on the Mega its digital #21 I use Arduino UNO card and a bluetooth module HC-05 (not needed if you don't want to change expressions with your phone). MAX7219 is a very popular LED driver for 8×8 LED matrix display. Tested it all the sketches and examples and they worked perfect. Each LED will be addressed by its row and column number. . The LED matrix comes in different sizes and also in different colors. Shown below. (Updated 19 Jan, 2019) Jan 20, 2018 · Find electronic components on https://www. May 10, 2011 · Hello every1. Done uploading the code to the board, power on, you should see the 8*8 matrix displaying a heart image. Remixed 506 times . Nov 22, 2010 · This is a Christmas card with an arduino, max7221 and a 8x8 matrix LED. It is just a led connected in parallel. Here are the arrays and setup code, the loop code is left as an exercise. Giới thiệu. For testing purposes it was connected to a standard Arduino board (Diecimila) using 4 shift registers. I have a question about the last example: "Example code for sprite text effect on MAX7219 LED dot matrix display with Arduino. ราคานั้น 100–250 บาท แล้วแต่ร้าน ถ้าเป็น Recently I got a 8x8 RGB LED matrix from Jaycar and thought I'd see how I could drive it using an Arduino Uno (ATmega 328 P). https://learn. I used a program called PixelToMatrix to help with coding the displayed images. 9 // 10 // Note that 11 // 1. I'm Chris, and I'll walk you through the entire process, from de… Dec 17, 2009 · It may be easier if you use an array of pins so your row and column variables in the for loops can start from 0. Otherwise, fail to compile the code. The code is very portable and can be easily adapted to any I2C-capable micro. Arduino LED Matrix Nov 19, 2022 · 8x8 LED Matrix . I found code that allows me to create a pattern in red, or green or An overview of the 8x8 LED Matrix with a HT16K33 backpack. So if you happen to have one bookmarked, let me know please! Mar 3, 2023 · 2. net/Utsource is a proffesional elelctronice supplier with more than 2 million product, lower price with fr The layout of the LED matrices is defined in ledMatrix. Aug 2, 2014 · So I bought a 8x8 Matrix LED [HT16K33], and I hooked it up with my Arduino, everything was cool, downloaded the needed libraries for the backpack and for the GTX. I don't have a MAX7219, but I thought the Nano should have enough outputs to handle this anyway. com The code can be found below, this is the code to generate a heart shaped object on the LED matrix. Code There are various libraries for Dot matrix and Arduino. Introduction. In Apr 7, 2019 · Tinkercad is a free web app for 3D design, electronics, and coding. Oh no! Nothing to discover here. 64 Pixel RGB LED Display - Another Arduino Clone: This display is based on an 8x8 RGB LED Matrix. You can easily use an Arduino Uno instead. I will show you how to generate patterns in the next step. Many Thanks Marco. The LED matrix module is really versatile for use with microcontrollers and this project introduces a very simple digital clock using a single 8x8 LED matrix and an Arduino to show the time, date and temperature in degrees Celsius and Fahrenheit. Wiring to the matrix is really easy. Connect the power supply to the Arduino so the matrix starts Jul 3, 2008 · hi, I'm in the process of building a controller for the sparkfun rgb led matrix. For example: C:\Program Files\Arduino\libraries Test Result. Right now there's code to drive 1 row at one color with 4bit pwm (2 leds stored in 1 byte) using a timer2 overflow interrupt. - sbsev3/8x8-LED-matrix I wanted to make a live holiday gift card. Goals The matrix and its API are developed to be programmed in a few different ways, each suited for different applications. Warning : Each LED is capable of drawing as much as 60mA (at peak brightness the matrix can draw just over 3. 1 // Mario's Ideas 2 // Testing all 64 leds in 8x8 LED matrix by Testing all 64 LED of the 8x8 LED matrix Jan 14, 2010 · Hello to all experts in Arduino, has become a new member of the Arduino world and trying to teach me how to Arduino works. 7K. The MAX7219 is essentially a multiplexer which can extend the Arduino's limited output pins. Delete Jul 15, 2017 · In this lesson we are going to interface a single color 8×8 LED matrix with Arduin and display a few characters to experience its charm from the beginning. Apps and platforms. Hence it is named as an LED Mar 15, 2020 · Heart on matrix led. Thanks for that. This code uses a ATtiny2313 to directly drive a 8x8 LED matrix. So static font and i can over print them to make some of the 64 leds move, clock face and battery Note: before compiling the code, do remember to place the Matrix library folder into directory \Arduino\libraries. I mean the LED goes blank for 30 secs, but nothing is being scrolled. Feb 5, 2015 · may be it can help: Arduino Uno + MAX7219 8x8 LED Matrix via SPI, using LedControl Library. arduino. So far I've decided to use 4 74HC595 shift registers to drive the leds. Things required 1) Arduino UNO 2) 2 Bread May 24, 2020 · Hello, the tutorial "MAX7219 LED dot matrix display Arduino" It's great because everything is explained. Two potentiometers, connected to analog pins 0 and 1, control the movement of a lit LED in the matrix. LED Coordinates: The code Overview. As the thread title suggests i want to control the matrix with the MAX 7219 using the arduino. 1 //Mario's Ideas - RCTech 2 //MAX7219 - using Led Control library to display 8x8 bitmap 3 #include < LedControl. This is how I hooked it up: I made an array that maps the pins of the matrix to the corresponding pins of the Nano. 8×8 dot matrix LED display comes with or without a MAX7219 driver. Jul 30, 2012 · After successfully uploading the sketch to ATtiny2313, I connected the LED Matrix and power supply as the following schematic. This video is a tutorial on how to control 1088AS Common Cathode 8x8 LED matrix without the use of any driver chips like MAX7219 and corresponding libraries. ENDLESS POSSIBILITIES! - IoT-Journey/8x8 LED Matrix Project (Arduino Microcontroller) at main · col4bin/IoT-Journey May 7, 2023 · I purchased a Reland Sun 8x8 Full Color RGB LED matrix. MAX7219 - using Led Control library to display two 8x8 bitmaps . Electrical conductance (electronic color code: white brown orange black brown brown) Mar 11, 2019 · This code does work, you must connect the 8x8 led matrix inputs to the corresponding pin callouts for the rows and columns in the code provided (or change the code pins to match your connection configuration). By connecting all the anodes of LEDs in a column and all the cathodes together in a row, the required number of input and output pins is reduced to 16. shutdown (0, false); 23 /* Set the brightness to a medium values */ 24 lc Code. Jul 28, 2014 · Typical specification of this LED Matrix Module is shown below: Operating Voltage: DC 4. can any 1 give me simple advice on how to approach the code. Nov 20, 2022 · Code. 8x8Matrix_LED. There are two popular block forms: the generic module and the FC-16 module. google. If you like you can change and define your own pins in the program. All examples run on the Arduino Nano without any problems. html Sending Bytes to an 8x8 LED Matrix. h: #define MATRIX_8x8 One 8x8 LED matrix; #define MATRIX_2X8x8 Two 8x8 LED matrices, giving 16x8 LEDs; left: LEDs 0 to 63, right: LEDs 64 to 127; #define MATRIX_2x2X8x8 Four 8x8 LED matrices, giving 16x16 LEDs; top: LEDs 0 to 127, bottom: LEDs 128 to 255 Learn how LED matrix display works, how to connect LED matrix to Arduino Nano, and how to program Arduino Nano step by step. May 11, 2018 · Hi there, I've had a spare Arduino Nano lying around for years and wanted to hook it up to an LED Matrix. 8x8 LED matrix with MAX7219 . After getting it to work I permatized it on a Sep 7, 2022 · Hello All First time poster here. Mar 15, 2020 Code. See the back of the 8x8 led matrix photo for Pin 1. In this article we look at a dot matrix display from keyestudio which is controlled by a HT16K33. It employs the MAX7219 LED driver IC, which simplifies the task of connecting and controlling multiple LEDs. 8 điện trở 560 om; Dây dẫn (nhiều mới đủ nhé!^^). I also created to arrays to map rows and columns to the pins of the led To connect the Dot Matrix to Arduino, simply connect the Vcc and GND pins to 5V and GND Arduino, and the DIN, CS, and CLK pins of dot matrix can be connected to any digital pins of arduino. You must have changed the code at some point. You can use resistor connecting in row or not. blogspot. 1 //This project was made by Mikołaj Trybulski 2 //CONNECTING 3 //MATRIX 4 PIN: ARDUINO PIN: Feb 5, 2015 · Beating Heart animation on 8x8 LED Matrix + Arduino Unoexample code: http://arduino-er. h > 2 3 int DIN = 10; 4 int Jun 24, 2021 · In This Video, I'm going to show you how LED HEART looks Like. Mikiklopsiki Arduino Uno code plus an advanced web interface to control an 8 by8 LED matrix without using any shift registers. Schematic. State of the 8x8 matrix can be presented as an unsigned long integer (uint64_t). So pretty much the backpack works with 4pins: CLK (l2C clock) DAT (l2C data) GND VCC+ (5V or 3V) Connected everything, installed the libraries successfully. To keep your LED matrix from burning, add 8 10kΩ resistors to the wires connected in yellow in the image below. Extrapolating to 8 rows and 3 colors I think I'd get a refresh rate of 18Hz Nov 11, 2018 · Hey Everyone, I was wondering if anyone knew of a good resource/tutorial for using a couple of 74HC595 shift registers in order to create an 8x8 LED matrix? I've seen some projects using these, but they never seem to explain it very well. The rest of the cabling are male/female jumper wires and should be connected to the corresponding pin on the 8x8 Led matrix. Report content I refactor and revised the code to fit my needs for this project. Nov 20, 2022 · 1. i need a little help i m new in programming and coding so i need a code for scrolling text on a 8x8 led matrix using Max7219 and a arduino board i hav several codes for displaying text but i need the code for scrolling text if any1 know it plz post here thanks i m using the following circuit:. 7V – 5. Change the name of the matrix with your freshly created matrix here: void setupMatrix(){ bool v = yourNameHere[x][y]; } Note: Before wiring up the LED 8x8 matrix with the Arduino Uno, bear in mind that the pins are numbered as per the following: Oct 3, 2022 · In this project, we will learn how to use the 8×8 LED Matrix MAX7219 with Arduino. Sep 11, 2018 · ในการต่อ MAX7219 เข้ากับ LED 7 Segment จะต่อขา SEG A-G,DP เข้ากับขา a-g ของแต่ละหลัก และต่อ DIG 0–7 เข้ากับแต่ละหลัก (ตามรูป) ในการทำงาน ไอซี MAX7219 จะส่งข้อมูลของแต่ละหลัก Jan 20, 2024 · Hello, I am trying to display a countdown on one 8x8 LED matrix (while motor is working for 30 seconds), but I can't get it to work. The isr routine needs 2. Oct 20, 2015 · setup() only initialises 6 matrices for (i=5;i>=0;i--) // Loop through our 8 displays Comment does not match the loop index. 2 IC 74HC595. 16,15,14,13,12 This is a look into some of the IoT projects I have done for fun utilizing Arduino and Raspberry PI boards. Feb 13, 2017 · Hey guys, I'm relative new to the Arduino world. Example sketch can be viewed here Nov 21, 2020 · Arduino筆記(94)：一個產生8x8 LED 矩陣程式碼的網站 by Ceiling Tsai — 星期六, 11月 21, 2020 1 先前在準備製作 APS9960 手勢感測器當作方向燈控制時，發現一個可以編輯 8x8 LED 畫面自動產生程式碼的網站，利用實作的過程介紹給大家。 Apr 1, 2018 · Adafruit NeoPixel NeoMatrix 8x8 - 64 RGB LED Pixel Matrix: (3. I have got to this forum because I have been trying to build a text scrolling on a 8x8 LED matrix for several days unsuccessfully. Code samples. Arduino Nano R3. There id good tutorials on Adafruit if you want to know how to soldering. g. Schematic of the LED Dec 26, 2013 · Scrolling text patterns on 8x8 led matrix displays from one of the common and favorite Arduino projects. 3ms to complete. I also have an Arduino UNO. This is a short arduino loop that uses Eberhard Fahle's excellent LedControl. go home. Code. Nov 19, 2022 · 8x8 LED Matrix . And a Max7219 Driver for controlling it. I will go from wiring to having some fun with it. Connect Arduino pin8 to DIN on 8×8 LED Matrix; Connect Arduino pin9 to CS of 8×8 LED Matrix; Connect Arduino pin10 to CLK of 8×8 LED Matrix Oct 2, 2024 · The order of the pins is assigned in two arrays in the code. On a 8x8 LED dot matrix we display a heart image (which is created by the matrix's dots/LEDs that are ON). This involves providing 32 outputs from a chip which only typically has 20 as well as using a technique called pulse-width-modulation (PWM) to manage not only on/off but brightness of the LEDs as well. May 2, 2015 · This is a very simple project to display a beating heart using and Arduino board and a 8x8 LED matrix driven by a MAX7219 chip. adafruit Nov 11, 2021 · Circuit design NAME USING 8x8 LED Matrix created by Harshit Arya with Tinkercad Name letters using 8x8 matrix using arduino uno. h library and a MAX7219 IC chip to drive an 8x8 LED matrix. h > 4 5 int DIN LED Dot matrix driven by MAX7219 works perfect with Arduino. Schematic of the LED Sep 1, 2021 · MAX7219 Dot Matrix LED Module. We can also display long information by using the matrix in the form of moving text. Make the circuit as shown below and then upload the given Arduino code. 4 // 5 // Ron D Bentley, Stafford, UK, July 2021 6 // 7 // This example and code is in the public domain and 8 // may be used without restriction and without warranty. Samples below implement this animation: These samples use a LedControl (library for the MAX7221 and MAX7219 Led display drivers) to switch LEDs ON/OFF. I bought a little starter kit from Jameco, that came with a Max7219CNG IC, 2 Potentiometers, an 8x8 red led display, 2 resistors, 2 capacitors, and an Arduino Nano. I use two 8x8 matrix for the nose, two 8x16 the eyes and four 8x16 for the mouth. Settings Method So my girlfriend and I's 1 year anniversary is coming up and I wanted to try to show off my skills I'v learned from college (electrical and computer engineering). in This LED matrix i m using an Arduino and MAX7219 IC, this project can be used to make low-r Nov 29, 2020 · Controlling 8x8 Dot Matrix with Max7219 and Arduino. Jan 4, 2020 · Welcome backin this video we will learn how to print alphabets using 8X8 led matrix components:Arduino UNO8X8 led matrix CODE:https://drive. They are ideal for displaying letters, numbers, symbols, text, etc. Connect your Arduino Nano Atmega 328p to your PC. ino. com/shaai/Arduino_L Each block has an 8x8 LED matrix (64 LED) and a MAX7219 driver. Originally coded for the Adafruit Bicolor LED Square Pixel Matrix with I2C Backpack Left side of the code is the color Green and the right side is Red. head wires . You need to do it the way the author did: Jul 31, 2021 · 1 // 2 // Example of a heart_beat code for use in any sketch where a visual indication is 3 // required that the sketch is operating. 1. I am using one MAX7219 multiplexing with an Arduino UNO R3. Button . 1 LED MATRIX 8x8. An 8×8 LED matrix has 64 LEDs (Light Emitting Diodes) which are arranged in the form of a matrix as 8 rows and 8 columns. I have the rows on pins 2-9, and columns on pins 9-13 and A0-A3. angryRobot and change the LED values. Now I've got rgb led matrix (8x8) and would like to pair this with my Arduino according to the following schedule: data sheet for the led matrix are: I have tried to copy the code that Nov 12, 2024 · The code is structured into several key sections: defining pin connections, setting up the Arduino board, the main loop for the heartbeat effect, and functions to control the LED matrix. Feb 13, 2017 Here's the code. LED Dot Matrix Display, Red. this example uses the LED_BUILTIN digital pin, normally digital Sep 20, 2018 · The first is an WS2812 8×8 64 LED Matrix LED 5050 module. breadboard . Soon I will release another version of it with 8x8 LED Matrix editor which allows you to easily customize the output of your 8x8 LED Matrix but for now, since we have limited memory for Arduino Nano I stick to this code. But i dont know howi would code it. Arduino matrix heart. " Sep 27, 2019 · 8×8 LED Matrix Tutorial + Project Code and Schematic. Oct 11, 2012 · Does anyone have a link to simple code examples (been googling for 2 days with no success) of getting text to scroll on 2 or more 8x8 LED matrices via MAX7219 chip (i. For that, we are going to interface an 8×8 LED matrix module with MAX7129 LED driver with Arduino Uno Board. LED MATRIX 8x8 đơn giản chỉ là 64 con LED được sắp xếp với nhau theo dạng ma trận, thành 8 hàng và 8 cột, tức là 16 chân. 5V power supply. which means pins 1-8 are there. But here DIY Customized 8x8 LED Matrix Tutorial (MAX7219 Meets Arduino): In this step-by-step tutorial, we're diving into the world of electronics and microcontrollers to create a personalized 8 by 8 LED matrix that can be controlled using an Arduino board. It is necessary to set the led pixels in binary or hex to the corresponding led to being kept on. A super simple project using just 3 items! Code. So, if you want to Connect the led matrix pins to the pins of arduino. This Easy project uses an 8x8 display with a MAX7219 controller and an Arduino Nano. com/file/d For use with Arduino compatible boards such as Adafruit Gamma/Trinket and Bi-Color 8x8 LED Matrix. Note : if you have pin 1 on the top left corner the pin setting is as follows (sometimes it is hard to see what pin 1 is): 01,02,03,04,05,06,07,08. 3V) and the Arduino code can read the ADC and get a continuous (0-1023) value. Have done various exercises and it becomes more and more enjoyable for every project. I've got this LTP-2B88AG-NB LED Matrix from the LITEON brand. As for the code I posted, I should say that you cannot address that array directly. The information is displayed on an 8 by 8 LED matrix display in this project. It lets you control 64 LEDs with just 16pins or even 5pins using the one that comes with the MAX72xx module. com/2015/02/beating-heart-animation-on-8x8-led. The knob is at the bottom. My first version was a 64pixels attiny greating card: I collected some patterns and used a 5x7 font see video here: 64pixels christmas card with &hellip; Mar 6, 2023 · 8x8 dot matrix display heart with arduino uno In this video we will discuss about how to make heart on 8*8 display with arduino, hope you like my videos. io. Control 8 x 8 (64) LEDs using two 74HC595 shift registers as fast as possible using SPI and PORT access. If you purchase the 8×8 LED matrix display and MAX7219 IC separately you need to connect them together. The lights of the May 16, 2024 · The MAX7219 8x8 LED matrix module is a compact, versatile display unit favoured by electronics hobbyists and developers working on microcontroller projects. e using LEDControl library). utsource. Please use this code as you wish!! =D Enjoy! May 22, 2019 · LED Matrix Driver MAX7219 IC Driver Module + LED 3mm Dot Matrix 8x8 ขนาด 30mm x 30mm. Pin Definitions: led_row and led_col arrays define the pins connected to the rows and columns of the LED matrix, respectively. And here is the arduino sketch: /* LEDMATTINY_DISP by Baselsw 2012. Circuit diagram of the LED matrix. Jun 6, 2021 · You can also check ws2811 Arduino pixel Led Programming. You can see that the way the author set it up visualizes the state of the LEDs for ease of programming. We wait for 5 seconds and then booom!, the leds that compose the heart turn on and a heart can be seen on the matrix. Arduino UNO R3. Beating Heart Jan 21, 2022 · 11 */ 12 LedControl lc = LedControl (12, 10, 11, 1); 13 14 /* image switching time */ 15 unsigned long delaytime1 = 500; 16 unsigned long delaytime2 = 50; 17 void setup {18 /* 19 The MAX72XX is in power-saving mode on startup, 20 we have to do a wakeup call 21 */ 22 lc. For example, an 8X8 matrix of LEDs would need 64 I/O pins, one for each LED pixel. It came with no information and I can't find much online about how to mix the colors. Copy-paste one of the existing matrixes e. Each column of the matrix contains the LED cathodes that are inside that column, while each row contains the LED anodes of that row. Jul 13, 2020 · Circuit design MATRIZ LED 8X8 Heart created by Mayra Alvarez with Tinkercad This video demonstrate how to send string to an 8x8 LED matrix with MAX7219 using the Arduino UnoLink to download the file:https://github. Programming 8x8 LED Matrix. See full list on github. Could someone give me a hint? The code is following (I have been trying to use the assistance of ChatGDP): void startMotorAndCountdown() { motorRunning = true; digitalWrite(relayPin, HIGH The 8x8 LED Matrix is one of my best components. I now would like to display custom STATIC fonts that i have made using this font editor MD_MAX72XX Font Editor, so all good there. The dot matrix that we’re going to use in this guide is 8x8 which means that it has 8 columns and 8 rows, so it contains a total of 64 LEDs. Find this and other hardware projects on Hackster. 1 #include < LedControl. I went thru all the basic tutorials on MAX72xx and LEDControl, and successfully got 2 of the matrices working, just not sure how to do the animation Aug 9, 2010 · You should also notice that the formatting is to make it look like the LED matrix. I'd recommend following that idea. Been using the MD_parola lib for scrolling text and its working well, including custom fonts that i have made. The LED matrix Aug 5, 2024 · Code /* Row-Column Scanning an 8x8 LED matrix with X-Y input This example controls an 8x8 LED matrix using two analog inputs created 27 May 2009 modified 30 Aug 2011 by Tom Igoe This example works for the Lumex LDM-24488NI Matrix. The Arduino UNO R4 WiFi comes with a built in 12x8 LED Matrix, that is available to be programmed to display graphics, animations, act as an interface, or even play games on. Mar 15, 2020 · Heart on matrix led. (mình sử dụng loại row anode). Specifically one that displayed a beating heart. Jun 21, 2022 · Arduino UNO R3/ Nano or Any other Arduino Board; 8X8 LED Matrix with MAX7219; 5V Power Adapter; Connecting Wires; Breadboard; 8×8 LED matrix display. Having the bit set on both sides generates Yellow Arduino Leonardo. Jul 7, 2017 · So i made a 8x8 led matrix and i want to control it with my arduino with no driver. 5 Amps at 5 Volts), this adds up so it is suggested to use a 5V 2A power supply. 2. led matrix pin-----arduino pin Sep 29, 2014 · 64 Pixel RGB LED Display - Another Arduino Clone. The 8X8 dot matrix is composed of 64 light-emitting diodes, and each light-emitting diode is placed at the intersection of the row line and thecolumn line. Jul 29, 2012 · The library is written for the Arduino and will work with any Arduino as it just uses the I2C pins. 6. The code is simple to understand and you can change the patterns of the LEDs in the code. 3V; Typical Voltage: 5V; Operating Current: 320mA; Max Operating Current: 2A; Wiring Instructions. bnlwwqh tturf osug sak wzzijqojy ake bdko ulylxle zdiyuak dbuto