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January 15, 2013
Product RTL-11445 |
about 3 months ago
I have seen that many people encounter this error while uploading code to an arduino with other items connected to it (like an xbee or sensor). If you get the error while uploading code to your arduino, unplug everything from the arduino except the usb cable and try again. If it works and the code is uploaded correctly, unplug the arduino and plug everything back into it while it does not have power.
Hope that solves your issue
News - Engineering Roundtable - … |
about 6 months ago
Very cool project. Watching the ph of a 10g aquarium isn’t super vital, but it could be for the plants or a larger system. Keep in mind that a larger aquarium (or likely a pond for edible fish) will be more chemically stable. While all of your fish seemed fine, 73 is a bit low for all of your tropical fish who prefer a temp around 78, but they seem fine so it should be alright. Are you using an under gravel filter or are you just pumping water from the tank up to the plants? If you aren’t using a UGF I would highly recommend it for your project as they pull the fish waste through the gravel and are sometimes jokingly referred to as nitrate factories. Although, a tank of that size with that number of fish should have a fairly even chemistry from the decomposing fish waste. Good luck with the project!
Product COM-12021 |
about 6 months ago
Good to know. I already ordered these, but for my project they should Gert an interesting result. I may do a more advanced version of this project later on with 5m of addressable ones, but for now these will be cool. Thanks for the quick reply!
So does that mean that you can have red and blue on next to each other, or would you get purple(ish) light from turning them both on at the same time?
Product ROB-11988 |
about 9 months ago
Still tinkering with using my tv as my computer monitor. Couldn’t quite read the schematic, but the Quickstart guide made it easier to see all of the headers and such. The teacher in charge of the computer club is very fond of the parallax boe bots. These are half of the price, and seem easier to program (granted I know how to program an arduino). We will have to see if I can convince him to order a couple to compete against the boe bots we already have.
So is there an h bridge built on to the mainboard? If not, how does it control the standard dc motors that come with the magician chassis?