tag:blogger.com,1999:blog-1523577297508817869.post2011627928091624556..comments2024-03-20T07:42:58.329-04:00Comments on Wise time with Arduino: It happened againFlorinChttp://www.blogger.com/profile/04330573900125042405noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-1523577297508817869.post-5060938874093614052015-01-13T20:11:42.401-05:002015-01-13T20:11:42.401-05:00From the datasheet, HT1632 can obviously drive com...From the datasheet, HT1632 can obviously drive common cathodes. The displays from Sure also use common cathodes. I'm not sure how you would drive common anodes though. Somewhere in the datasheet there is this sentence: "has a common sink total current value of 250mA" which makes me believe it can only drive common cathodes.<br />What stage of the design/experimenting are you at?FlorinChttps://www.blogger.com/profile/04330573900125042405noreply@blogger.comtag:blogger.com,1999:blog-1523577297508817869.post-36928059214561013832015-01-13T16:10:22.330-05:002015-01-13T16:10:22.330-05:00So I've been trying to design my own display, ...So I've been trying to design my own display, and ran into further issues with Sure... I bought some LE-MM103 8x8 Matrix displays from them and discovered that despite it being described in DataSheet as Common Anode, once I got are actually Common Cathode. I confronted them and they send me Common Anode version. Apparently they make both, with same model number :) I'm having hard time figuring out if I can drive CA LEDs with HT1632c :( Do you know if it's COM pins can be switched to work with either CA or CC LEDs? Datasheet mentions something about N-MOS and P-MOS configuration... Maybe you want to collaborate with me on making custom LED boards? :)Bratanhttps://www.blogger.com/profile/03582712295155693989noreply@blogger.comtag:blogger.com,1999:blog-1523577297508817869.post-92118610659007232002014-12-01T22:58:16.808-05:002014-12-01T22:58:16.808-05:00One of my reasons for not doing a kickstarter was ...One of my reasons for not doing a kickstarter was the dependency on a single supplier.<br /><br />Now, I am thinking the display itself would be a good kickstarter idea.FlorinChttps://www.blogger.com/profile/04330573900125042405noreply@blogger.comtag:blogger.com,1999:blog-1523577297508817869.post-38975641814316272532014-12-01T21:58:19.141-05:002014-12-01T21:58:19.141-05:00Wow, what a royal pain in the proverbial! There mu...Wow, what a royal pain in the proverbial! There must be a more consistent source of similar displays out there somewhere...ot was bad enough that they changed the hole pattern, but changing connectors and voltage requirements and still posting the same data sheet is not a good way to run a business....Nickhttps://www.blogger.com/profile/18162917820546179580noreply@blogger.comtag:blogger.com,1999:blog-1523577297508817869.post-11531567556090574662014-12-01T16:06:38.228-05:002014-12-01T16:06:38.228-05:00Thanks.
I'll take a look and maybe contribute....Thanks.<br />I'll take a look and maybe contribute.FlorinChttps://www.blogger.com/profile/04330573900125042405noreply@blogger.comtag:blogger.com,1999:blog-1523577297508817869.post-63338088144912609662014-12-01T15:43:04.433-05:002014-12-01T15:43:04.433-05:00Wow that is sneaky! I'm glad I did order more ...Wow that is sneaky! I'm glad I did order more displays...<br />Here's link to the forum post where I attached eagle files of the HT1632c breakout board: https://forum.sparkfun.com/viewtopic.php?f=20&t=39054<br />Didn't get much further than that yet :)Bratanhttps://www.blogger.com/profile/03582712295155693989noreply@blogger.comtag:blogger.com,1999:blog-1523577297508817869.post-84736581954271355332014-12-01T15:39:02.291-05:002014-12-01T15:39:02.291-05:00The datasheet they point to is the same as before....The datasheet they point to is the same as before. The only hint that the display is different is a sneaky reference like "Vcc=12V", somewhere in the description.<br /><br />There is a need indeed for a competitor to Sure on these displays. Monopoly, especially when parts are off-the-shelf, like in this case, is negatively affecting many.<br /><br />Yes, I appreciate if you can share your design of the display.<br />FlorinChttps://www.blogger.com/profile/04330573900125042405noreply@blogger.comtag:blogger.com,1999:blog-1523577297508817869.post-10281655748500186822014-12-01T15:23:22.714-05:002014-12-01T15:23:22.714-05:00Thanks for the heads-up!
Did they at least list n...Thanks for the heads-up! <br />Did they at least list new display as different model this time? :) <br />It does make sense that they went with 10-pin IDC, as most pins were not used, but move to 12V is a bad one...<br />I'm fed up with them, and plan to make my own HT1632c based matrix boards for my Xronos Clocks. Got some ICs already and made my own break-out PCB (let me know if you want Eagle files)Bratanhttps://www.blogger.com/profile/03582712295155693989noreply@blogger.com