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Questions tagged [7-segment]

It refers to a seven-segment display (SSD) is a form of electronic display device for displaying decimal numerals.

A seven-segment display (SSD), or seven-segment indicator, is a form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays.

Seven-segment displays are widely used in digital clocks, electronic meters, basic calculators, and other electronic devices that display numerical information.

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How to use a common anode 7-segment, 4-digit display?

Please take this question as an example to (my own) answer below. I've got an 7 segment, 4 digit LED display, but I don't have any idea on how to wire it. I don't understand the difference between common anode/cathode, and I don't have 2 pins per…
aaa
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7 Segment display dimming

I've got project that needed to have some (4) digits display, and had plenty of 7 seg. displays lying around. I didn't have any multiplexers left but have instead wired it up as per this diagram: I've the wired my duemilanove with the a-dp pins on…
Shane Gadsby
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ATtiny85-DHT11-TM1637

I have tried many combinations and I can get the Attiny85 to display on the TM1637 just fine, but I cannot get ant readings from the DTH11, tried different pins, libraries. I upload code via UNO as isp and that works fine. Tried same code on UNO and…
Jim Rodemeyer
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74HC595 to 4 Digit 7 Segment using SevSegShift Library

I have a question regarding the use of SevSegShift library. I followed the example properly and tested it to see if it works. It was able to power up the seven segments and light up the whole LEDs (even the decimal) but it's not showing the output I…
fireblazer10
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TM1637 Decimal points

I am using the following TM1637 board with an Arduino Pro Micro clone. I am attempting to use the "TM1637Display Library" written by Avishay Orpaz, but I cannot find any way to use the four decimal points on this display (as opposed to the colon…
LesRhorer
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4x TPIC6B595 + 4x 7 segment display

I am going to use 4x TPIC6B595 and 4x 7 segment display with common anode. Below You Can find vendor site of this display. https://sklep.avt.pl/wyswietlacz-led-2-30-57mm-zielony-wa.html Here is my diagram: I want to display 4 digit number. Will it…
Krzychotnik
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4 Digit 7 segment display flickering

I am attempting to make an Arduino counter using a 4 digit 7 segment display. The problem I am encountering is the display flickers. I am using an Arduino Uno and 5641AS digit display (so common cathode). Here is my program: #include…
Sony
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Problem with a seven segment display. The segments blink then turn off

I can't figure it out what is the problem with my circuit, the segments turning on for sec and then they are turning off for good. I tried to connect to GND instead of the 5 V but then, nothing happened. My code: void setup() { for (int pin = 2…
Mosh Feu
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How to power up this LCD 7 segments display

I got two of these type of 7 segments display in LCD material. And here is the datasheet I tried to power up to UNO, it can make the segment on, while a second, the segment go off, but the pinMode does not changed.
Allen Chak
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Convert from 3 V to 5 V

I'm new to Arduino, electronics, and this forum. I have made up a little project that connects an HC-SR04 ultrasonic range detector, and displays the distance on a 4 digit, 7 segment LED display. When I have it plugged into my laptop for power, it…
nedlud
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74HC595 with 4 digit 7 segment display. Any way to get rid of leading zeros?

I am working on an Arduino based temperature reader using a DS18B20 temperature IC. The display is a 4 digit 7 segment LED common anode display driven by a single 74HC595 shift register. Currently, it is setup to read a variable assigned with a…
Remembermyname
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How to multiplex multiple displays?

I want to use 2 "displays" with 4 digits. The displays are common cathodes with cathode transistors connected to the digits, as the figure: The segments of both displays are connected together on the digital pins. The problem is that I tried to use…
Alecrim
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Arduinino & Max7219

I'm using a MAX7219 and 6 (six) seven segment displays I used my own board and two purchased on ebay - no difference in operation. MOSI, and CLK are correct and verified with my scope (Tektronics) CS (chip select) is pin 22 (for no particular…
f_hampshire
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Problems coding a 12 pin 7 segment display and grove temperature sensor with Arduino Uno

I am trying to code my 12 pin seven segment display to display the temperature from my grove temperature sensor. I am new to this and I have been struggling, so if anyone could help that would be much appreciated. My temperature sensor is…
K-Dawg
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How to create 2 individual daisy chains using the MAX7219 Module and Mega2560

I am using MAX7219 8 digit 7 segment displays with Arduino Mega2560. Now, I have to physically space out the displays far from each other. Hence, after a certain distance the displays on the far end start flickering. So, can we setup 2 individual…
Soumarya
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