Tagged Questions

2
votes
1answer
174 views

Seven segment display becomes dimmer as more segments are lit

I've got a common cathode, two digit seven segment display (LDD-N512RI-RA) hooked up to the GPIO pins of a microcontroller (Coldfire MCF52233 DEMO). The problem is that the brightness of the display ...
-4
votes
1answer
218 views

I'm driving a large 7-segment display using a microcontroller [closed]

I've seen that others are using TPIC6a596, a combo 74HC4511+ULN2003A, and also TLC5916. Just to confuse things more (for me anyways), there are also MAX7219 ICs that seem appropriate (maybe not for ...
1
vote
1answer
448 views

Multiple 4-Digit 7 Segment Displays with Arduino

I have 3, 4-Digit 7-Segment Displays from Adafruit, and the included docs/ libraries say I should connect the display to pins A4 & A5. However, I have three of the displays, so I am looking for a ...
2
votes
2answers
1k views

Driving a large 7 segment display using a micro-controller

I need to drive a large seven segment display (segment length is a about 2 inches) using a micro-controller (PIC 16F877). I've driven normal seven segments directly from PICs without issues, but I ...
3
votes
1answer
2k views

Using 4 digit 7 segment LED

I have a 7 segment display that has 4 digits. What will I need to make use of this? Can a single microcontroller handle the operation? I mean PIC16F690...I saw also a MAXIM chip that drives these kind ...
4
votes
3answers
2k views

Improving brightness of multiplexed 7-segment led display

I have a two digit 7-segment LED display which is driven multiplexed by a microcontroller. PORTA is for the anodes. In my code I shift a 1 through ...
0
votes
1answer
294 views

Multiplexing segment LCD

I have a segment LCDs of 29 segment and a single BP. I can display the digits as i wish with a 40 Pin PIC microcontroller. But now my problem is to multiplex two LCDs of above type, so that i need ...