Comments on: Parts: I2C real-time clock calendar (PCF8563) http://hackaday.com/2009/06/26/parts-i2c-real-time-clock-calendar-pcf8563/ Fresh hacks every day Fri, 10 Feb 2012 15:30:41 +0000 hourly 1 http://wordpress.com/ By: Agent420 http://hackaday.com/2009/06/26/parts-i2c-real-time-clock-calendar-pcf8563/comment-page-1/#comment-79651 Mon, 29 Jun 2009 13:47:41 +0000 http://hackaday.com/?p=10587#comment-79651 Oops, forgot link:

http://www.futurlec.com/Mini_DS1307.shtml

]]> By: Agent420 http://hackaday.com/2009/06/26/parts-i2c-real-time-clock-calendar-pcf8563/comment-page-1/#comment-79650 Mon, 29 Jun 2009 13:47:11 +0000 http://hackaday.com/?p=10587#comment-79650 Futurlec has an assembled DS1307 board complete with battery backup for about $7, makes a great drop in for projects.

]]> By: bro http://hackaday.com/2009/06/26/parts-i2c-real-time-clock-calendar-pcf8563/comment-page-1/#comment-79556 Sun, 28 Jun 2009 11:01:12 +0000 http://hackaday.com/?p=10587#comment-79556 @nebulous: great thanks for the hint! – when I finished my clock you’ll be the first to see :)
@matt: thanks too.

Thanks,
bro

]]> By: matt http://hackaday.com/2009/06/26/parts-i2c-real-time-clock-calendar-pcf8563/comment-page-1/#comment-79495 Sat, 27 Jun 2009 18:25:16 +0000 http://hackaday.com/?p=10587#comment-79495 I’m another fan of the 1307. It’s got the battery backup (which is really fantastic), and if I’m not mistaken, it does have 2 built in alarms that you can set. I’ve got one in my alarm clock, and it’s really (really) nice to be able to plug in a clock and not have to set the time / date…

]]> By: nebulous http://hackaday.com/2009/06/26/parts-i2c-real-time-clock-calendar-pcf8563/comment-page-1/#comment-79462 Sat, 27 Jun 2009 10:29:19 +0000 http://hackaday.com/?p=10587#comment-79462 @bro
At maxim you can find a DS1307, and others in the same series, with similar features. The DS1307 doesn’t actually have an alarm, but that can be easily implemented from code (at higher power consumption I guess). It has a nice feature that it can easily use a button cell to store the date/time set if main power drops.

I managed to interface that with an Arduino with practically no idea what I was doing.

]]> By: bro http://hackaday.com/2009/06/26/parts-i2c-real-time-clock-calendar-pcf8563/comment-page-1/#comment-79379 Fri, 26 Jun 2009 21:06:33 +0000 http://hackaday.com/?p=10587#comment-79379 grml – I don’t like nxp’s sample policy!

At TI or Maxim you choose your chip and get a sample within 2 weeks – but nxp does not offer any samples to people who don’t have a direct sales agreement – and all german distributors don’t ship samples or rather it’s really hard to buy these parts in low quantities in germany, without paying ridiculous shipping expenses.

grrrrrr…

]]> By: Ian Lesnet http://hackaday.com/2009/06/26/parts-i2c-real-time-clock-calendar-pcf8563/comment-page-1/#comment-79372 Fri, 26 Jun 2009 20:33:20 +0000 http://hackaday.com/?p=10587#comment-79372 @joshw

The main Bus Pirate page has a bunch of examples of all the protocols:
http://www.buspirate.com

Check the latest how-to, as well:
http://hackaday.com/2009/06/25/how-to-the-bus-pirate-v2-with-usb/

]]> By: joshw http://hackaday.com/2009/06/26/parts-i2c-real-time-clock-calendar-pcf8563/comment-page-1/#comment-79366 Fri, 26 Jun 2009 20:12:35 +0000 http://hackaday.com/?p=10587#comment-79366 I hope their is a example of using the bus pirate & SPI interface.
This seems to be a better way to read and write to test to see if a circuit works than even a arduino…
The ads1256 has some hard spi data sheets… it times out and sleeps I wonder how this would be if the chip has thowse sort of issues?

For basic things it looks useful but without a example for the protocol that is needed in the documentation how would someone guess?

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