Heylo,
I'm looking to build a belt clock on the pager form.
The specs are pretty simple -- HH:MM:SS and DD:MM:YY, pretty simple.
The device will be battery powered with LED display like this: **broken link removed** I'll hafta attach an additional 2 digit display for the seconds, unless there is a 6 digit display about .28" tall going around. (Those 4 digit ones are the only ones I can find)
This can be done, heck if the **broken link removed**, then I can do it. I'm thinking that I might have to use a cellphone battery if power supply is a problem. It'll have to be opened to adjust anything (to make it as water resistant as possible). An aluminum case (probably anodized to a cool dark blue) with a TIG welded belt loop, and we'll figure out how to program the microcontroller so that the date is displayed every 15 seconds for a duration of 2 seconds.
Now, how do I rig up the electronic circuit? What microcontroller with real time clock circuit (crystal)? I see many like this, but they're all AC powered. I don't think battery backup will be required or could fit. I'm thinking that I might also like a 5 LED battery charge circuit which comes on for 3 seconds every minute.
Thanks lads!
I'm looking to build a belt clock on the pager form.
The specs are pretty simple -- HH:MM:SS and DD:MM:YY, pretty simple.
The device will be battery powered with LED display like this: **broken link removed** I'll hafta attach an additional 2 digit display for the seconds, unless there is a 6 digit display about .28" tall going around. (Those 4 digit ones are the only ones I can find)
This can be done, heck if the **broken link removed**, then I can do it. I'm thinking that I might have to use a cellphone battery if power supply is a problem. It'll have to be opened to adjust anything (to make it as water resistant as possible). An aluminum case (probably anodized to a cool dark blue) with a TIG welded belt loop, and we'll figure out how to program the microcontroller so that the date is displayed every 15 seconds for a duration of 2 seconds.
Now, how do I rig up the electronic circuit? What microcontroller with real time clock circuit (crystal)? I see many like this, but they're all AC powered. I don't think battery backup will be required or could fit. I'm thinking that I might also like a 5 LED battery charge circuit which comes on for 3 seconds every minute.
Thanks lads!
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