tag:blogger.com,1999:blog-6265457.post439417027034593997..comments2024-03-28T08:03:30.551-04:00Comments on FET Tricks: Charging LEGO EV3 and NXT FLL Robots with a USB CableShane Trenthttp://www.blogger.com/profile/06540169294375742919noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-6265457.post-972392465897837312018-08-25T08:12:20.659-04:002018-08-25T08:12:20.659-04:00Helpful and also superb page layout, although disc...Helpful and also superb page layout, although discuss nutritional requirements combined with options and also suggestions, quite a few great facts and also motivation. Cheers towards the great facts. <a href="https://theherbalcoast.com/product/herbalcoast-variable-battery-usb-charger/" rel="nofollow">herbalcoast variable battery usb charger</a>rohanrjhttps://www.blogger.com/profile/10707564218581362070noreply@blogger.comtag:blogger.com,1999:blog-6265457.post-66848721580337739122018-01-08T08:57:00.491-05:002018-01-08T08:57:00.491-05:00Mark,
Great story. I love your attitude. "Do...Mark,<br /><br />Great story. I love your attitude. "Do what you can, with what you have, where you are." - Theodore Roosevelt<br /><br />ShaneShane Trenthttps://www.blogger.com/profile/06540169294375742919noreply@blogger.comtag:blogger.com,1999:blog-6265457.post-54370256347725207042017-10-14T23:48:13.092-04:002017-10-14T23:48:13.092-04:00how interesting of an article. I am a first-time c...how interesting of an article. I am a first-time coach, coming into a semi-est. team(s) towards the end of the last season.<br />today we just had a practice scrimmage and amongst being in a new location from the previous year and lack of signage, the 1st thing I noticed when the main coach showed up with kids and robots was the lack of chargers, so I made a mental note of it knowing that we plugged everything in the night before ( and not accounting for some recoding that happened before they left in the morning ) and I did not think anything of it.<br /><br />That is until the last round when one of the teams mentioned that their battery was getting really low whereupon they realized they did not grab chargers. options went around the table like taking the battery out of the other robot even though it was probably at the same charge level, and taking the battery from the robot that was in the parts bin which wasn't charged ( of course it was even less than what they had ).<br /><br />which is when it hit me, I just recently picked up a boost / buck converter to power my laptop in the car with the added benefit of a variable output of 3-30vdc and input of 5-30vdc. and now nicely festooned with "M" connectors on the input and output, and an "M" connector to alligator breakout ( I planned my design around versatility ). couple that with a 12v sealed lead acid battery pack with appropriate adaption cable. the only thing I was missing was something that fit the connector on the LEGO battery pack. knowing that I had a couple of adaptaplug's rummaging around in one of my bags, I dug in and found out that an "H" was a perfect fit on the 1st try.<br /><br />So I ran back in with my portable electronics "first aid kit" ( it is literally a First Aid bag that just happened to fit the 8Ah battery perfectly ) ….. to be told that they didn't need it!<br />they decided that they would risk the battery dying on the table, and it didn't.<br /><br />so I decided to do some research on regulations, because I know what I had looked very dubious and absolutely not LEGO ( especially since I'm still looking for some sort of casing that's not permanent ). and that led me to this wonderful article. I also wanted to share my story and say that RadioShack adaptaplug's use a lettering standard and an "H" which is very common, also happens to fit perfectly and correspond to a Wikipedia article with measurements.<br /><br />https://en.wikipedia.org/wiki/Coaxial_power_connector#Adaptaplug<br /><br />PS I was Bodge-ing things together before I learned of this guy named MacGyver.Mark Whttps://www.blogger.com/profile/04658117868957929532noreply@blogger.comtag:blogger.com,1999:blog-6265457.post-40976182016808553622017-08-25T05:34:08.232-04:002017-08-25T05:34:08.232-04:00really great information and Images help us unders...really great information and Images help us understand to about how can build a <a href="http://www.liztek.com/product/liztek-multi-port-desktop-usb-charger/" rel="nofollow"> USB Charger </a> at reasonable price.Santu Steynhttps://www.blogger.com/profile/12001694293681376635noreply@blogger.com