tag:blogger.com,1999:blog-255765354647516808.post4778322441124693969..comments2024-02-19T00:39:49.642-08:00Comments on We Alone on Earth: DIY TinyMarquee: an Attiny24 based scrolling marqueeMhttp://www.blogger.com/profile/05279969393617122722noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-255765354647516808.post-50046488967398708902013-03-25T09:16:09.869-07:002013-03-25T09:16:09.869-07:00Thanks for the suggestions. I hadn't even thou...Thanks for the suggestions. I hadn't even thought about brightness as a factor, but hopefully it won't be an issue. It'll mostly be used indoors, although I do like the idea of placing one at my bus stop for others to use. It's very cloudy here so maybe it'll be fine. I made a very tiny half-duino clone I call Demiduino and I it should be able to incorporate Jeenode's RF wadehttps://www.blogger.com/profile/00634974211992941471noreply@blogger.comtag:blogger.com,1999:blog-255765354647516808.post-49559985548152304412013-03-25T06:49:53.891-07:002013-03-25T06:49:53.891-07:00Oh I see, I didn't know about Jeenode, it look...Oh I see, I didn't know about Jeenode, it looks quite simple, carry on.Mhttps://www.blogger.com/profile/05279969393617122722noreply@blogger.comtag:blogger.com,1999:blog-255765354647516808.post-42645424108137362622013-03-25T06:36:24.152-07:002013-03-25T06:36:24.152-07:00Also if you need the display to be visible outside...Also if you need the display to be visible outside or in bright-light conditions then charlieplexing may yield too dim a display. Mhttps://www.blogger.com/profile/05279969393617122722noreply@blogger.comtag:blogger.com,1999:blog-255765354647516808.post-90142931974930815542013-03-25T06:35:37.974-07:002013-03-25T06:35:37.974-07:00My only suggestion would be to consider using Blue...My only suggestion would be to consider using Bluetooth instead of radio. That is, unless you need more range or already know how to send data over radio. Bluetooth makes a regular TTL level RS232 connection to the arduino so it is very easy to set up -- it's like a wireless drop-in replacement for a USB to TTL serial cable.Mhttps://www.blogger.com/profile/05279969393617122722noreply@blogger.comtag:blogger.com,1999:blog-255765354647516808.post-4563859639324409682013-03-24T22:18:44.974-07:002013-03-24T22:18:44.974-07:00Hi, great work! This marquee looks perfect for a p...Hi, great work! This marquee looks perfect for a project I'd like to make and wanted to solicit any input/advice. The transit system where I live has GPS on every bus and an API to find their location. I've already found a Python script somebody wrote to print the next bus arrival of a particular stop to standard output. What I'd like to do is connect an Arduino compatible with a Hopewadehttps://www.blogger.com/profile/00634974211992941471noreply@blogger.comtag:blogger.com,1999:blog-255765354647516808.post-63891896761458279062013-02-23T16:42:52.427-08:002013-02-23T16:42:52.427-08:00Hi mike, your project is a little outside my exper...Hi mike, your project is a little outside my experience. To get a flashlight projector like you describe, you need to solve two problems. First, you need to get a proper collimating lens and optics so that the projected image doesn't diverge too much and staying in focus, and second, you have to get some extremely bright light source in a small package that somehow runs on batteries. I Mhttps://www.blogger.com/profile/05279969393617122722noreply@blogger.comtag:blogger.com,1999:blog-255765354647516808.post-3558242532516274002013-02-23T16:40:14.612-08:002013-02-23T16:40:14.612-08:00Hi Scott, I used up all the available IO pins on t...Hi Scott, I used up all the available IO pins on the AtTiny24 for this design, but it is definitely possible. Usually, RS232 connections are bidirectional. I only implemented the receiving side on the AtTiny for this project. The easiest way to get a chainable board is to implement a bi-directional serial connection, and have it output the end of the buffer as it scrolls off screen. You can then Mhttps://www.blogger.com/profile/05279969393617122722noreply@blogger.comtag:blogger.com,1999:blog-255765354647516808.post-38518293536783909252013-02-22T13:09:13.231-08:002013-02-22T13:09:13.231-08:00I have a great use for you and would be interested...I have a great use for you and would be interested in more info if you can provide. I have a hand held flashlight that has an array of LEDs. I took it to our local police department and showed it to a few sergeants. I asked them if they would find it useful if the LEDs actually could display a message to traffic going by. STOP, SLOW DOWN, PULL OVER, etc. They thought it would be great especially Mikehttp://www.indio.org/index.aspx?page=261noreply@blogger.comtag:blogger.com,1999:blog-255765354647516808.post-57558642703910633022013-02-22T08:56:42.278-08:002013-02-22T08:56:42.278-08:00Is it possible to feed the output from one unit in...Is it possible to feed the output from one unit into the next to extend the length of the display? I would like to make a scrolling marque fedora hat for next new years.Scotthttp://www.moseley.canoreply@blogger.comtag:blogger.com,1999:blog-255765354647516808.post-38763383476891715142013-02-22T00:44:25.840-08:002013-02-22T00:44:25.840-08:00Very nice description of charlieplexing. Have you ...Very nice description of charlieplexing. Have you thought of contributing the design to circuits.io ?<br />http://blog.circuits.io/post/43564427971/take-your-eagle-designs-to-the-cloudAnonymousnoreply@blogger.com