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Electronics => Projects, Designs, and Technical Stuff => Topic started by: radar_macgyver on May 23, 2020, 06:58:39 pm

Title: Extra dot on seven-segment display?
Post by: radar_macgyver on May 23, 2020, 06:58:39 pm

I have a few Lite-on LTC-4727JR (https://optoelectronics.liteon.com/upload/download/DS30-2000-193/C4727JR.pdf) seven-segment displays with four digits, four decimal points, a colon and a mysterious extra dot (marked L3 in the data sheet). Anyone know what the extra dot is for?

Title: Re: Extra dot on seven-segment display?
Post by: chriva on May 23, 2020, 07:03:41 pm

Degrees most likely :)
Ever noticed the circle next to C and F?

Title: Re: Extra dot on seven-segment display?
Post by: WattsThat on May 23, 2020, 07:08:15 pm

Agree, it’s degrees. It’s a multi-purpose clock display. Bog standard stuff.

Title: Re: Extra dot on seven-segment display?
Post by: radar_macgyver on May 23, 2020, 07:43:48 pm

Makes sense, thanks!

Title: Re: Extra dot on seven-segment display?
Post by: Doctorandus_P on May 26, 2020, 05:51:35 pm

This used to be done by putting the rightmost display upside down.