Hey ,
This was a little project I did from the shift registers and arduinos I got from adafruit : D
Video - https://www.youtube.com/watch?v=OOVk0ewZxIg , There is a start up pattern too .
6 digit clock is based on 6 6B595 shift registers and the 2 digit clock is based on a 16 bit led driver from max . Both use a i2c DS3231 RTC that is point soldered into place with battery backup .
Controller is a arduino pro mini on the 6 digit one and a arduino micro on the 2 digit one ( soon to be a pro mini ) .
Im not to good with shift registers on the code side of things so the program is just a lot of else if statements and shift out function to check the output from the RTC and to print a byte based on what is true .
IMG_0933[1] by TwirlyWhirly555, on Flickr
IMG_0934[1] by TwirlyWhirly555, on Flickr
IMG_0935[1] by TwirlyWhirly555, on Flickr
2 digit one ..
IMG_0936[1] by TwirlyWhirly555, on Flickr
6 & 2 Digit Numitron Clocks , DS3231 RTC , Arduino pro mini
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- TwirlyWhirly555
- Posts: 8
- Joined: Thu Aug 07, 2014 4:46 pm
6 & 2 Digit Numitron Clocks , DS3231 RTC , Arduino pro mini
Last edited by TwirlyWhirly555 on Sat Feb 21, 2015 4:47 pm, edited 1 time in total.
- adafruit_support_bill
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Re: 6 & 2 Digit Numitron Clocks , DS3231 RTC , Arduino pro m
Whoa! Cool clock. I love the free-form wiring.
- TwirlyWhirly555
- Posts: 8
- Joined: Thu Aug 07, 2014 4:46 pm
Re: 6 & 2 Digit Numitron Clocks , DS3231 RTC , Arduino pro m
Thanks ! : D .
I did make a second one that is abit more compact . It uses a Lipo Boost converter , 3 16 Bit MAX6971 CC led drivers and a DS3231 RTC / Arduino pro mini
IMG_0947[1] by TwirlyWhirly555, on Flickr
I did make a second one that is abit more compact . It uses a Lipo Boost converter , 3 16 Bit MAX6971 CC led drivers and a DS3231 RTC / Arduino pro mini
IMG_0947[1] by TwirlyWhirly555, on Flickr
- TwirlyWhirly555
- Posts: 8
- Joined: Thu Aug 07, 2014 4:46 pm
Re: 6 & 2 Digit Numitron Clocks , DS3231 RTC , Arduino pro m
This was the latest one , Boxed up with a Lipo Boost supply , soon to have a relay switch over to use USB power so the Lipo can charge and then switch back boost supply when USB power is removed , manual ON/OFF in both cases .
IMG_1230[1] by TwirlyWhirly555, on Flickr
IMG_1231[1] by TwirlyWhirly555, on Flickr
IMG_1230[1] by TwirlyWhirly555, on Flickr
IMG_1231[1] by TwirlyWhirly555, on Flickr
- adafruit_support_bill
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- Joined: Sat Feb 07, 2009 10:11 am
Re: 6 & 2 Digit Numitron Clocks , DS3231 RTC , Arduino pro m
Cool! Like the case too.
Please be positive and constructive with your questions and comments.