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Topic: 3" 7 Segments usage. (Read 450 times) previous topic - next topic

beingobserver

Jan 11, 2014, 01:13 am Last Edit: Jan 11, 2014, 01:17 am by beingobserver Reason: 1
Hi friends. I am trying to make a basic version of this http://i1.ytimg.com/vi/bs2deqm7-4g/maxresdefault.jpg for the kids.

I did the sound, light and hoop sensor parts but i don't know how to add these displays.
How can i use external power source and is there any other components to use with 7 segments.

I need to use 6 displays.

Product: http://www.ebay.com/itm/290562018621?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

Thank you.


Damn amateur.

CrossRoads

Those are "Common Anode".
Find "Common Cathode" and add MAX7219 to control them.
Must be Common Cathode.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

beingobserver

@CrossRoads I have bought them already. I have 10x of them :)
Damn amateur.

CrossRoads

#3
Jan 11, 2014, 02:04 am Last Edit: Jan 11, 2014, 02:08 am by CrossRoads Reason: 1
Ok, then get a bunch of shift registers, 1 per digit, & current limit resistors, 7 or 8 per digit.
TPIC6B595 are REQUIRED due to 11-12V source voltage needed to drive these.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

beingobserver

Thank you CrossRoads.

I will buy the parts and will try to find an example circuit. I may visit this page if i can't find any :)
Damn amateur.

CrossRoads

Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

beingobserver

I like the cakes :D and bad jokes also :)

Thank you so much CrossRoads.
Damn amateur.

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