Yet another illustration guide, how to wire the MAX7219 on 8 Bit 7 Segment Digital LED Display driven by MAX7219. The MAX7219 is an integrated serial input output common-cathode display driver which is connected to microprocessor or microcontroller along with the 8 bit 7 segment digital LED display. This module you also place the LED Graph display LED or 64 separated LED. Includes an on chip type B BCD encoder a multi-channel scanning loop, segment WORD driver, and also an 8×8 static RAM that stores each data. This chip is only one external register can be used to set the current of each LED segment.
The MAX7219 has integrates a convenient four wire serial interface that can be used to all micro-controller, microprocessor. Each on-chip data can be addressed in the update without rewriting all display, and also allows you to select each data encoding or no-coding.
14-segment+display datasheet, cross reference, circuit and application notes in pdf format. The Datasheet Archive. Browse by Manufacturer Get instant insight into any electronic. 1 18 15 13 8 4 3 2 17 15 6 14 7 5 12 14 SEGMENT-DISPLAY 14. OCR Scan: PDF. 14-Segment Alpha-numeric LED FeatherWing. This is the Adafruit 0.56' 4-Digit 14-Segment Display w/ FeatherWing Combo Pack! Available in Blue, Green, Red.
The entire module device includes a 150μA low power shut off mode, analog and digital brightness control, scan limit register allows you to display 1-8 bit data, and LED light detection mode.
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Feature:
0.36 inch
Common cathode
Only need three IO ports can drive 8 bit digital tube
The module compatible of 5V / 3.3V microcontroller (51 / AVR / STM3) and Raspberry Pi
Common cathode
Only need three IO ports can drive 8 bit digital tube
The module compatible of 5V / 3.3V microcontroller (51 / AVR / STM3) and Raspberry Pi
![7 segment display datasheet 7 segment display datasheet](https://embeddedadventures.com/images/uploaded_images/DSP-0801_1_600.jpg)
Schematics Diagram
Wiring Illustration Guide
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Sketch Code
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 | http://www.14core.com pin 12 is connected to the DataIn pin 10 is connected to LOAD */ #include 'LedControl.h' { // Initialize the MAX7219 Serial.write('14CORE TEST CODE FOR LED MAX7219 LED TUBE'); lc.setIntensity(0,15);// To set the brightness level (0 is min, 15 is max) lc.clearDisplay(0);// To Clear the display register } voidloop() lc.clearDisplay(0);// To Clear the display register lc.setDigit(0,7,2,false);// To display the 2 first column on the left (column 7) lc.setDigit(0,6,5,true);// To display a 5 column 6 and decimal point lc.setDigit(0,5,4,false);// To display a 4 column 5 lc.setDigit(0,2,3,false);// To show the 5 on 2nd lc.setDigit(0,1,7,false);// To Place a 0 in the column 1 lc.clearDisplay(0);// Clear display register lc.setDigit(0,7,1,false);// To display a 1 at the first column on the left (column 7) lc.setDigit(0,6,2,false);// To display a 2 column 6 and decimal point lc.setDigit(0,4,4,false);// display a '4' in column 4 lc.setDigit(0,3,2,false);// display a '2' in column 3 lc.setDigit(0,1,3,false);// To display a 3 column 1 lc.setDigit(0,0,6,false);// 6 show a first hand column, column 0 delay(3000); // fac inca un text lc.clearDisplay(0);// To Clear the display register lc.setRow(0,5,B00100000);// 'i' lc.setRow(0,3,B00000001); lc.setRow(0,1,B01100011);// 'o' delay(3000);// Delay 3 Seconds |
14 Segment Display Pinout
Downloads
Compile c program in dos skippy. Download Schematic Diagram | Image
Download LedControl.h Code Library | GetHub | Zip
Download MAX72XX Datasheet | PDF
Download LedControl.h Code Library | GetHub | Zip
Download MAX72XX Datasheet | PDF
Wiring MAX7219 on 8 Bit 7 Segment Digital LED Tube Display