Let's Make Robots!

Solar outlet Power

Hey friends! Work is still slowly going on my robot project but something else came up that I could really use some ideas on...

 

What I'd like to build is a solar powered AC outlet (110v US standard). Ideally it would take in power from the sun, store in a battery, and go out to an outlet. A friend of mine is doing some major go-green efforts and I wanted to help out, however Im a bit rusty on my electrical engineering lol.

 

Electronics question: LEDs on a slightly unpredictable power supply

Hi guys, Way off topic, but you guys have been so helpful in the past, and i KNOW you know the answers, so one cant but ask!

We are doing a camper van conversion, and i have found some sweet "decking lights" for internal lighting.

They are sealed, "3LEDs and a resistor", units, designed to run at 12V (off a transformer, the junction box is a simple parrallel arrangement)

Problem is, the vehicle battery will produced between 11 and 14V depending on charge condition and if the alternator is running.

Dagu Trex Controller Issue [SOLVED]

Hi!

I create a new forum to talk about a trex controller issue I encountered after one hour of use of this controller. I mounted the dagu trex controller on the dagu wild thumper chassis with the 30+6mm given spacers . For testing purposes, I connected the trex controller in LV and no external switch mode (2 jumpers on) with Zippy LIPO 2S batteries and a D8RII FrSky receiver. The batteries are in series on the batteries input. The channel 1 and 2 of the receiver (which I programmed to be throttle and direction on the 9XR TX) are connected on the TX/RX pins of the controller.

Advice on servo motors

Hello everyone! my and a friend are working on a project for making a replice of the sentry turret from a game called Team Fortress 2, although the specific details of that dont matter xD we are currently having trouble in locating servo motors for different purposes of the build, so i was wondering if anyone had any advice or links on where i could find servers with the following specifications:

secondary level arduino electronics kit?

i'm wondering if anyone sells a kit of components for like a secondary level of hobbyist... like a next step up from an arduino inventors kit.  Something that includes a bunch of components such as:

Move robot along curved path (with differential steering)

I am building a robot that looks roughly like this:

(Image taken from this site and modified by myself.)

LPC dev tools first release

Some of you are aware of my ongoing project to develop a good toolchain for the NXP LPC1114 and related processors.  I have finally posted an initial release of what I have so far.  It is really rough, but mostly works.  If you are interested in getting a head start or if you just want to take a look at what I'm doing, the files are here:

http://www.wrcooke.net/projects/lpcdev/lpcdev.html

Feedback is welcome.  Please don't tell me "your documentation sucks," I already know that :-)

 

Dagu Micro Magician Robot Controller V2

Hi All, my Name is Peter, this will be my first post.

I have this controller, Micro Magician,  and was woundering, to run an I spy tank or similar, do I need to add a Motor controller or can I just use the motor out terminals on the Dagu Micro Magician Robot Controller V2

 

Peter

Adding a switch

Hello all.

I was just wondering how I would add an on/off switch to this circuit so I can turn the power from the batteries on and off?

 

What type of projects are you using your BeagleBone black for?

My daughter and I have started building a robot with our BeagleBone black.  You can see our robot here http://letsmakerobots.com/robot/project/my-first-working-robot. I was wondering what others were using their BeagleBone black for to give me ideas for other projects we could also work on.