8x8 LED matrix using Max7219 with Arduino Custom Characters code generator by Manmohan Pal

8x8 LED matrix using Max7219 with Arduino Custom Characters code generator by Manmohan Pal




8x8 LED matrix using Max7219 with Arduino Custom Characters code generator by Manmohan Pal #LEDMatrix #LEDDotMatrix #8x8LEDmatrix, #max7219, #shiftregister In this video i will show you unboxing of 8 * 8 LED MATRIX MODULE which is controlled using max7219, the library link is available on my blog, we will see how to generate custom character code and encapsulate it into arduino code,




The MAX7219 is an IC designed to control a 8x8 LED MATRIX. The IC is serial input common-cathode (Common Negative) display drivers that interface microprocessors (or microcontroller) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs.


MAX7219 Pin Configuration MAX7219 is a 24-pin IC available in different packages and is selected depending on the requirements. The description for each pin is given below. Pin Number Description COMMON CATHODE OF DISPLAY SEGMENTS 2--> DIG0- Common ground for all eight segments of DIGIT0 11-->DIG1- Common ground for all eight segments of DIGIT1 6--> DIG2- Common ground for all eight segments of DIGIT2 7--> DIG3- Common ground for all eight segments of DIGIT3 3--> DIG4- Common ground for all eight segments of DIGIT4 10-->DIG5- Common ground for all eight segments of DIGIT5 5--> DIG6- Common ground for all eight segments of DIGIT6 8--> DIG7- Common ground for all eight segments of DIGIT7 SHARED TERMINALS 4--> GND 19--> V+- Power Supply SHARED SEGMENT TERMINAL OF ALL EIGHT DIGITS 14--> SEG A – SEGEMTENT A of all DIGITS 16--> SEG B – SEGEMTENT B of all DIGITS 20--> SEG C – SEGEMTENT C of all DIGITS 23--> SEG D – SEGEMTENT D of all DIGITS 21--> SEG E – SEGEMTENT E of all DIGITS 15--> SEG F – SEGEMTENT F of all DIGITS 17--> SEG G – SEGEMTENT G of all DIGITS 22--> SEG DP – SEGEMTENT DOT of all DIGITS FUNCTION PINS 1-> DIN - Serial Data Input Pin 12-> LOAD(CS) – Chip Select or Data shift pin 13-> CLK - Clock Pin 24-> DOUT - Pin used to Connect Second chip serially 18-> ISET - current output adjust pin Features and Specifications Operating voltage range: +4.0 to +5.5V Recommended operating voltage: +5V Maximum supply voltage: 6V Maximum current allowed to draw through each segment pin: 100mA Maximum current allowed to through each DIGIT ground pin: 500mA Low power consumption Data-to-Segment Delay Time: 2.2mSec Operating temperature: 0°C to +70°C Storage Temperature: -65°C to +150°C


LED matrix module

An 8 x 8 LED matrix display is used in this project to display the information. LED matrices are available in different styles like single color, dual color, multi-color or RGB LED matrix. They are also available in different dimensions like 5 x 7, 8 x 8, 16 x 16, 32 x 32 etc


1
2
3
4
5
D10 ------------------LOAD or CHIP SELECT of LED module
D11 ------------------CLOCK of LED module
D12 ------------------DATA IN of LED module
+5V ------------------VCC of LED module
GND ------------------GND of LED module




Part 1 : Indentify the pins of 8*8 LED Dot Matrix Module https://www.youtube.com/watch?v=ZXF62U0ziJ8 Part2: How to display Scrolling Text on 8*8 LED Dot Matrix https://www.youtube.com/watch?v=cO_O4s2Swus HOW TO MAKE SCROLLING TEXT LED DISPLAY || 48X8 LED MATRIX || Huge LED Matrix BY MANMOHAN PAL https://www.youtube.com/watch?v=-nSiwW6jl6U How to make custom characters for Arduino LCD by Manmohan Pal https://www.youtube.com/watch?v=tWddnbe69ng Arduino Text Scrolling Display |xcluma MAX7219 4 In 1 Display with 5P Line Dot Matrix Module https://www.youtube.com/watch?v=KsSXvtmCINQ Code Generator: https://docs.google.com/spreadsheets/d/1tuGgGR3pGKJ3ioA_QQ92Hibe33dUl5cM/edit?usp=sharing&ouid=105843565998608894777&rtpof=true&sd=true

How to install Libraries in Arduino IDE by Manmohan Pal https://www.youtube.com/watch?v=LWlq25J2hFI

/////////////////////////////////////////Code///////////////////////////////
#include <LedControl.h> int DIN = 12; int CS = 11; int CLK = 10; byte A[8]={B00111100,B01111110,B01100110,B01100110,B01111110,B01111110,B01100110,B01100110,}; byte B[8]={B01111100,B01100110,B01100110,B01111100,B01111100,B01100110,B01100110,B01111100,}; byte C[8]={B00111100,B01111110,B01100010,B01100000,B01100000,B01100010,B01111110,B00111100,}; byte house[8]={B00011000,B00111100,B01100110,B11000011,B01000010,B01011010,B01011010,B01011010,}; LedControl lc=LedControl(DIN,CLK,CS,0); void setup(){ lc.shutdown(0,false); //The MAX72XX is in power-saving mode on startup lc.setIntensity(0,15); // Set the brightness to maximum value lc.clearDisplay(0); // and clear the display } void loop(){ printByte(A); delay(1000); printByte(B); delay(1000); printByte(C); delay(1000); printByte(house); delay(1000); } void printByte(byte character []) { int i = 0; for(i=0;i<8;i++) { lc.setRow(0,i,character[i]); } }

//////////////////////////////////////end///////////////////////////////////////////////


Manmohan Pal Mob. 8989811397 Email- mannmohanpal@gmail.com Blog: http://electronics4ubymanmohanpal.blogspot.in/p/blog-page_5.html Youtube Channel: https://www.youtube.com/channel/UCDnhARnHOEIPuNIEp5vPdGQ

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