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5 votes
6 answers
2k views

Is there a way to control a 4 digit 7-segment display without a shift register?

I am trying to run a 4-digit 7-segment display using a RPi as a microcontroller (and there is a reason this is here and not on the RPi stack). However, all the tutorials i found require a 74HC595 ...
Kami-kun's user avatar
1 vote
1 answer
1k views

Can I drive a common anode multiplex display with MAX7219?

I am trying to integrate with a pre-existing common-anode 3 digit, 7 segment LED panel (spoiler, it's a jukebox wallbox custom conversion) using a MAX7219, which will be controlled by a Raspberry Pi. ...
Scot Kreienkamp's user avatar
0 votes
1 answer
115 views

How to wire TLC59281 to a Raspberry Pi?

I have a 7 segment display that is driven by a TLC59281. How do I connect its pin to a Raspberry Pi in order to drive the display? Edit: It uses SPI interface. The datasheet can be found here.
satit suknaibaiboon's user avatar
0 votes
3 answers
694 views

How to correctly address this three digit 7-segment display

I've purchased a mixed bag of random 7-segment displays and am trying to use a three digit 7-segment display marked as a "ELT-512HDB G C0019). For this I found the a datasheet with the pin ...
lisa-thehexbit's user avatar
0 votes
1 answer
302 views

Read serial data from unknown source using Raspberry pi

I have a fuel dispenser, which has one keypad and two displays, each display has three of 7 segment LCDs. I want to control the fuel dispenser with a PC or a phone. The way to do this in my knowledge ...
BlackGraper's user avatar
0 votes
1 answer
201 views

7 segment display

I recently bought a 7 segment display for research purposes. I have connected this to the Raspberry Pi and I got an output. The thing is that, the segment has 4 digit display and all the displays show ...
Thoht's user avatar
  • 123
3 votes
1 answer
925 views

How to read SAA1064 7-segment values

I have a central heating system that displays it's info and error codes on 4 7-segment displays. These displays are driven by a SAA1064, like so: This SAA1064 (datasheet here) receives it's ...
KJdev's user avatar
  • 329
4 votes
2 answers
1k views

Driving 7 segment displays through Raspberry Pi's GPIO

So I was thinking of wiring up four 7-Segment displays through the Raspberry PI. I'd do that by multiplexing each of them, and came across this: http://hackyourmind.org/public/images/display7seg_anim....
vascoFG's user avatar
  • 55
0 votes
2 answers
780 views

Multiplex two I2C ICs into four 7 Segment displays

I currently have two PCF8574AN I2C 8-bit IO expander ICs. Is there a way I could have two seven segments be driven off one IC (So i could run four seven segments displays off the two ICs that I have). ...
Marmstrong's user avatar