greeeg 460 Posted October 13, 2011 Share Posted October 13, 2011 Hi all, So basically instead of buying another one of those desk calendars that you tear of each day as it goes by I decided to make use of an epaper display from Sparkfun (that up until last week had been collecting dust) to create a digital daily calendar. The screen fits 20 16 segment digits on 2 lines. This gives enough room to display the current day of the week, and date. It is powered by a Li-ion cell from an old laptop battery, rated at 2.4Ah. (My estimates put the battery dying in about 200 years, as this draws ~20mAh for ~6 seconds every 24 hours ) This was originally a launchpad project but I ported it to a F2013 board by changing one line, Shows how universal the code is The current hardware consists of a F2013 board that I got free from TI during one of their promo's. The board is soldered directly to the back of the epaper breakout board. The code is attached. The 2kb of flash available on the MSP430F2013 didn't give much wriggle room. currently the code compiles with about 64 bytes of flash free. Due to the sparkfun breakout board not breaking out the enable pin for the on board boost circuit I found to achieve reasonable low power consumption I had to connect the power Pins of the display to IO pins on the MSP430F2013 main.c TopHatHacker, Fe2o3Fish, tingo and 9 others 12 Quote Link to post Share on other sites
bluehash 1,581 Posted October 13, 2011 Share Posted October 13, 2011 Gasp! awesome work. I'm moving this to Projects as this section is for Booster Packs for the Launchpad. Make sure you submit this to the next POTM. Quote Link to post Share on other sites
greeeg 460 Posted October 13, 2011 Author Share Posted October 13, 2011 Ohh I thought I posted to the projects section :? . But thanks for that. Thanks I'll be sure to post this to the POTM when it opens up Quote Link to post Share on other sites
zborgerd 62 Posted October 13, 2011 Share Posted October 13, 2011 I *really* like this and want to make one as well. Can you do a parts list? Quote Link to post Share on other sites
timotet 44 Posted October 13, 2011 Share Posted October 13, 2011 awesome! Quote Link to post Share on other sites
greeeg 460 Posted October 13, 2011 Author Share Posted October 13, 2011 Can you do a parts list? Sure can: 1x Epaper display - http://www.sparkfun.com/products/10150 1x Epaper display breakout board - http://www.sparkfun.com/products/10304 1x eZ-F2013 dev board* - http://www.ti.com/tool/ez430-t2012 1x 32.768kHz watch crystal 1x SMD button The eZ-F2013 is just soldered to the breakout board as shown is my original post. then the crystal and button are just soldered directly to the board. (I'll make a schematic for the POTM) *However a launchpad can be used with a MSP430G2231 or even maybe a MSP430G2211 as the hardware USI has not been used due to routing difficulties. bluehash, zborgerd and PentiumPC 3 Quote Link to post Share on other sites
zborgerd 62 Posted October 14, 2011 Share Posted October 14, 2011 Thanks! Quote Link to post Share on other sites
greeeg 460 Posted October 16, 2011 Author Share Posted October 16, 2011 I've actually noticed that the code I've posted isn't properly working :? . I think it's to do with the prescaling of the timer. I'll fix it up for submission in the POTM, but just be aware if you were thinking of building this. Quote Link to post Share on other sites
tingo 22 Posted November 17, 2011 Share Posted November 17, 2011 Interesting project! Quote Link to post Share on other sites
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