Comments on: JeeNodes now with 328 http://jeelabs.org/2009/08/31/jeenodes-now-with-328/ Computing stuff tied to the physical world Tue, 22 May 2012 18:27:43 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Alex http://jeelabs.org/2009/08/31/jeenodes-now-with-328/#comment-210 Alex Mon, 31 Aug 2009 14:09:47 +0000 http://news.jeelabs.org/?p=2674#comment-210 <p>The same-size-as-JN option comes only from the desire of having access to I2C and SP/ISP connectors on the same daughterboard, i.e. to other pins of the MCU. Otherwise, JeePlugs are really enough for everything.</p> <p>Not sure about solar cells for indoor projects, but boost converter was something I was looking into as well ;-)</p> The same-size-as-JN option comes only from the desire of having access to I2C and SP/ISP connectors on the same daughterboard, i.e. to other pins of the MCU. Otherwise, JeePlugs are really enough for everything.

Not sure about solar cells for indoor projects, but boost converter was something I was looking into as well ;-)

]]> By: jcw http://jeelabs.org/2009/08/31/jeenodes-now-with-328/#comment-209 jcw Mon, 31 Aug 2009 11:16:14 +0000 http://news.jeelabs.org/?p=2674#comment-209 <p>Thanks for the comments. I'll explore some ideas. A same-size-as-JN option would seem a little on the small side to me - you already get almost that effect by using two JeePlugs, one for each pair of ports.</p> <p>I'm also exploring battery options. NiMH batteries have a relatively high-self-discharge rate, so I'm looking into a single small cell (maybe with boost converter to 3.3V) with a small solar cell to charge the battery. It all depends on light levels and energy consumption patterns. With sufficient light, sufficiently often, even a coin cell could work. But there are many more ways to do this - stay tuned for a post in the next few days.</p> <p>When I have more to report, I'll post on the discussion forum (see TALK link at top of this page).</p> Thanks for the comments. I’ll explore some ideas. A same-size-as-JN option would seem a little on the small side to me – you already get almost that effect by using two JeePlugs, one for each pair of ports.

I’m also exploring battery options. NiMH batteries have a relatively high-self-discharge rate, so I’m looking into a single small cell (maybe with boost converter to 3.3V) with a small solar cell to charge the battery. It all depends on light levels and energy consumption patterns. With sufficient light, sufficiently often, even a coin cell could work. But there are many more ways to do this – stay tuned for a post in the next few days.

When I have more to report, I’ll post on the discussion forum (see TALK link at top of this page).

]]> By: Thomas http://jeelabs.org/2009/08/31/jeenodes-now-with-328/#comment-208 Thomas Mon, 31 Aug 2009 10:46:46 +0000 http://news.jeelabs.org/?p=2674#comment-208 <p>Yes, me to , i agree , same dimension as the jeenode and hooked up to the 4 ports will be also a great idea and solution. the daughterboard could then assembled with the required components as described in my first comment. Thanks, that would be great. We have to think about a nice looking case with battery holder ( 3xAA nimh = 3,6V ) for mouting at the wall ? so then Thomas</p> Yes, me to , i agree , same dimension as the jeenode and hooked up to the 4 ports will be also a great idea and solution. the daughterboard could then assembled with the required components as described in my first comment. Thanks, that would be great. We have to think about a nice looking case with battery holder ( 3xAA nimh = 3,6V ) for mouting at the wall ? so then Thomas

]]> By: Alex http://jeelabs.org/2009/08/31/jeenodes-now-with-328/#comment-207 Alex Mon, 31 Aug 2009 09:59:01 +0000 http://news.jeelabs.org/?p=2674#comment-207 <p>Hi JC, It would be nice to have the size of daughterboard similar to main one (meaning JeeNode). One can always cut it if require ;-) Cheers, Alex</p> Hi JC, It would be nice to have the size of daughterboard similar to main one (meaning JeeNode). One can always cut it if require ;-) Cheers, Alex

]]> By: jcw http://jeelabs.org/2009/08/31/jeenodes-now-with-328/#comment-206 jcw Mon, 31 Aug 2009 09:02:08 +0000 http://news.jeelabs.org/?p=2674#comment-206 <p>A daughterboard or "shield" would be a nice idea. It's very easy to make using standard perforated board with solder islands. Unlike the Arduino, all headers are on the same 0.1" grid, so it's essentially a matter of soldering all the headers in the right place.</p> <p>I'll try one out in the next few days. The big question is: what size would you choose for such a daughterboard?</p> A daughterboard or “shield” would be a nice idea. It’s very easy to make using standard perforated board with solder islands. Unlike the Arduino, all headers are on the same 0.1″ grid, so it’s essentially a matter of soldering all the headers in the right place.

I’ll try one out in the next few days. The big question is: what size would you choose for such a daughterboard?

]]> By: jcw http://jeelabs.org/2009/08/31/jeenodes-now-with-328/#comment-205 jcw Mon, 31 Aug 2009 08:55:46 +0000 http://news.jeelabs.org/?p=2674#comment-205 <p>It would be nice to have a larger setup ready made - but the big catch is that not everyone would want the same setup. The JeeNode is useful (IMO) because it's general-purpose. At this point, I decided to use "plugs" for different usage scenarios. What you describe can be handled with a JeeNode, one Room Plug (already described but not ready), and a plug with the RTC on board and an LCD connector - which you can make using one JeePlug prototype board. The result is a compact stick with everything you ask for.</p> It would be nice to have a larger setup ready made – but the big catch is that not everyone would want the same setup. The JeeNode is useful (IMO) because it’s general-purpose. At this point, I decided to use “plugs” for different usage scenarios. What you describe can be handled with a JeeNode, one Room Plug (already described but not ready), and a plug with the RTC on board and an LCD connector – which you can make using one JeePlug prototype board. The result is a compact stick with everything you ask for.

]]> By: Alex http://jeelabs.org/2009/08/31/jeenodes-now-with-328/#comment-204 Alex Mon, 31 Aug 2009 08:16:02 +0000 http://news.jeelabs.org/?p=2674#comment-204 <p>Hi Jee, This is really great news! In addition to Thomas comment I was wondering if you have any plans to add a shield, which can be connected to all available interfaces, like Port 1 to 4, I2C and SP/ISP. I think that way all the ports will be available on the shield for prototyping. What do you think? Cheers, Alex</p> Hi Jee, This is really great news! In addition to Thomas comment I was wondering if you have any plans to add a shield, which can be connected to all available interfaces, like Port 1 to 4, I2C and SP/ISP. I think that way all the ports will be available on the shield for prototyping. What do you think? Cheers, Alex

]]> By: Thomas Mock http://jeelabs.org/2009/08/31/jeenodes-now-with-328/#comment-202 Thomas Mock Mon, 31 Aug 2009 05:45:05 +0000 http://news.jeelabs.org/?p=2674#comment-202 <p>Hey, Great, I like it. you have made such different plugins for the jee node, an here are my question , suggestion : Is it possible to made a jeenode with having a clock(DS1307), more memory, Tempsensor (DS18B20), LDR and (two wire) LCD connection on board ? So we do not need to plug , to plug , to plug ? is it possible for you to make a prototype pcb ? because i'm not so firm in making PCB's like you ! What about a new name like " jee room node " ? wouldn't it be nice to have a node with all equipment on board ? kind regards Thomas</p> Hey, Great, I like it. you have made such different plugins for the jee node, an here are my question , suggestion : Is it possible to made a jeenode with having a clock(DS1307), more memory, Tempsensor (DS18B20), LDR and (two wire) LCD connection on board ? So we do not need to plug , to plug , to plug ? is it possible for you to make a prototype pcb ? because i’m not so firm in making PCB’s like you ! What about a new name like ” jee room node ” ? wouldn’t it be nice to have a node with all equipment on board ? kind regards Thomas

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