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If you did that, you'd negate the point of the boosting circuit. You'd also need a larger solar cell with a higher voltage.
Weird, it works for most people. Shoot, there are quite a few comments saying so. If you have an issue you should contact us. The #1 issue is that the AA rechargeable batteries they're using are super dead and take awhile to recharge. (Rechargeables tend to dissipate over time.) You can always swap in a couple of regular AAs for a quick test, just don't try and solar charge them up.
Not without an insane amount of them. You're better off working in a 3.7V lithium battery. Which in that case would also mean a cheap charge controller, and you can also pop in a MUCH bigger solar cell. Most of the sub $10 little charge controllers will handle up to a 1.5A input.
Half an amp.
In general, tracking systems are OVERKILL to small solar setups. You're better off just buying a second solar panel and saving yourself time, money, and upkeep.
They need to move with the head in order for the code to work.
Fun! I can think of a lot of fun things to use with this.
Wow! Nicely done design.
Thats some nice etching you have there.
Well... darn it... thats an awesome idea. I'm going to have to make one of LEGOs for our office. Maybe take it to Maker Faire. Such a darn simple and easy to follow design.
Though this write up does need a video. Hmm.... what about making a dog treat dispenser.... teach a dog to touch a conductive ink spot on the wall... trigger the arduino... Darn it... there goes my weekend.
Fun Size Candy Vending Machine
Thats pretty slick.
CNC Robot Plotter
Arduino Solar Tracker (Single or Dual Axis)
What about using two continuous rotation servos instead of geared motors? Would that work?
Thats cool! How hard would it be to do this with only 1 arduino? A "wired" model, so to speak?
I want to build that giant Gameboy you have in the background of your video! Where can I find info on that?
Hack an HC SR04 to a 3 Pin Sensor
How to Build Obstacle Avoiding Robot for Beginners With Arduino Tutorial
Hmm... all I can think about is how I'd want to make a capacitive touch point on the bottom that plays the "coin" sound every time you touch it.
Nicely done. Any chance you can add a video?
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We look forward to you making your own!
Giant LEGO NES Controller View Instructable »
Growing Crystals on LEDs and ETextiles
It belongs in a museum!!!
Arduino Optical Theremin
Why not make things even more simple and just use some standard 3mm or 5mm LEDs? Then you wouldn't need to solder them. Just tape them to the conductive tape. Surface mount LEDs are a massive pain in the rear for most people, and especially students.
A 9V battery is a very very poor choice for charging a USB gadget. By design, a 9V has a high voltage but low amperage. You won't get more than a couple percentage points into your USB gadget from it. A 9V battery has 500mAh of capacity in it whereas a AA battery as around 2,500mAh of capacity. Another downside is that 9Vs cost much more than AA batteries do. This is why every single mobile charger thats sold in stores uses either AA batteries or an internal 3.7V lithium battery. To get to the 5Vs for USB they uses a step up converter to boost the voltage, as opposed to the STEP DOWN converter that a car battery adaptor has. Nothing against your write up, I just always post this comment when someone makes a "Charge your phone from a 9V" instructable. Using AAs and a $5...see more »A 9V battery is a very very poor choice for charging a USB gadget. By design, a 9V has a high voltage but low amperage. You won't get more than a couple percentage points into your USB gadget from it. A 9V battery has 500mAh of capacity in it whereas a AA battery as around 2,500mAh of capacity. Another downside is that 9Vs cost much more than AA batteries do. This is why every single mobile charger thats sold in stores uses either AA batteries or an internal 3.7V lithium battery. To get to the 5Vs for USB they uses a step up converter to boost the voltage, as opposed to the STEP DOWN converter that a car battery adaptor has. Nothing against your write up, I just always post this comment when someone makes a "Charge your phone from a 9V" instructable. Using AAs and a $5 Step Up converter off Amazon is a much better option. Shoot, spend a couple dollars more and use rechargeable AAs, then you're not creating lots of battery waste. (And for even more reference, AAs also stink at charging gadgets. A 2600mAh lithium battery is a cheap and easy rechargeable source for making your own USB charger. Just don't forget to get a $5 Boosting Circuit and a $5 lithium charge controller.)
They said that about the Color Classic and Mac Classic machines I have. At least those are easy to wire up, since they're just big cubes.
I used an Arduino Nano with a break out board (for a new product we're creating), and wired everything up on a LEGO sheet using nylon conductive tape. We could have used up to 13 LEDs, but we only really had space for 8 with this design. This was for a demo at an upcoming teacher conference. The entire display is self contained. The iPod ($25s from eBay) and Arduino are run off a USB power bank, and the speakers are powered from the iPod. I'm very pleased with the outcome and look of everything. I'm going to do a write up and video on this at some point in the future.
What model of audio jack are you using with your PCB?
Thats some amazing work! We have an old G4 iMac in our office and no idea what to do with it.
UV METER (Music visualizer) #1 with arduino
The OLED Screen is a really nice touch.
Now I can be the coolest kid at the Maker Space.
I came to Math, but NoPinky beat me to it. My hat is off to you good sir!Also, good project... just needs a useful solar cell to actually work.
Thats a well done project. Kudos on having a really good video to go with it.
Using regular LEDs will save you and arm and a leg, and are just as easy to use.
Thats pretty cool. I'd love to make this out of LEGOs.
Vinyl Record Wall Clock - Iron Man
I know what I'm doing next week. Nice work.
Can you share a video of the animation working?
MaxDraw - a plotter XY built in CNC.
Giant Functional LEGO NES Controller
We just made a Pikachu out of quarter inch wood using this method. Your video was very helpful.
I wonder if you could use parts from TinyCircuits in order to make it 100% wrist wearable.
Could you make a Keyboard out of this?
When in doubt, simple is best.
Kudos! Thats a very cute laser design!
Art Deco Weather Forecast Display
Laser Cut Acrylic Ornament Kits
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Nice work! Overall a really solid build. We want to do something similar in our shop with our x-carve.
I mean, it's not like we posted the ENTIRE project for free online so you can make one without buying anything from us... Nothings stopping anyone from buying these parts elsewhere and making it themselves. (Then again, the big quality thing we add are custom laser cut parts because we're assuming not everyone had a 40 Watt laser cutter in their basement.) But I guess you can't please everyone.
Solar tracking is great, but honestly, you're better off spending extra money on an additional panel or two instead of dealing with it. Think about a bit, do you really want to worry about a moving mechanical system that sits outside 365 days a year? Something that could stop working if a single leaf falls over a sensor? Tracking for home use is rarely worth the extra time, money, and upkeep costs. Adding some extra panels will consistently give you the same results with 99% less work involved. We should know, we sell a small desktop dual axis solar tracking kit and get this question daily from people.
+1 to the kudos. We love the circuit design etching.
You're "dumb charging" the battery. With that much amperage you're going to destroy your battery. The general rule is don't throw more than 10% of the battery capacity at it at any given time, otherwise batteries tend to self destruct.
Looks rather familiar...
Very nicely done. Great DIY project!
It's already quite easy as projects go. Very simple soldering.
Holy wow! Those are some nice looking veggies! I'm envious of all the awesome things you'll be cooking up with them.
And no one is stopping you from doing that. We're showing you who to make it and letting you buy parts from wherever. You act as if we're FORCING you to buy parts from us. Free guide on how to make something.
Don't see how it's fake. We're showing you how to make the project and listing all the supplies you need to make the project. You can buy the kits from us or from somewhere else, either way our directions are here for all to use.
This feels like it's missing some steps...
To answer several of the questions, the REGULATOR is not necessary and is not represented accurately in this (mostly) great write up.What the regulator is doing is trading AMPS for VOLTS. No different than any of the small solar USB projects that appear on instructables from time to time. It's more commonly called a DC to DC Boosting circuit.In fact, it is no way necessary for this project and to make life much easier AS WELL AS not waste energy is to just use a properly sized solar panel. One that is 12V (which means that it needs to really be 18V since you always need 1.5X voltage of the system you're making) so that it works just fine with the solar charge controller. For this kind of project that means an external solar panel OR a fold out solar panel kind of setup. For instanc...see more »To answer several of the questions, the REGULATOR is not necessary and is not represented accurately in this (mostly) great write up.What the regulator is doing is trading AMPS for VOLTS. No different than any of the small solar USB projects that appear on instructables from time to time. It's more commonly called a DC to DC Boosting circuit.In fact, it is no way necessary for this project and to make life much easier AS WELL AS not waste energy is to just use a properly sized solar panel. One that is 12V (which means that it needs to really be 18V since you always need 1.5X voltage of the system you're making) so that it works just fine with the solar charge controller. For this kind of project that means an external solar panel OR a fold out solar panel kind of setup. For instance you could hook up three 6V solar panels together to get yourself 18V, or two 9V panels. This way you'd also increase your amperage as well which means faster charging times.Overall this project deserves a high five, but you need to modify the solar cell aspect a bit and remove the "regulator." Otherwise you're just wasting amps from a solar cell which is already very low on amps to begin with.
Tape projects are very easy to do, which is why we love them.
Except it's missing the entire USB voltage boosting aspect of the circuit, a USB port, and a decent battery capacity. What you have right there is a circuit that'll put out around 3V of power and has a battery capacity of around 800mA. More or less useless when trying to charge up a phone seeing how a phone, or any USB gadget, needs 5V. So theres that whole aspect.
Yup, lithium is better provided you're safe about it.
Thats a common question. Unfortunately due to the simplicity of this project adding in a meter would be rather difficult. You're better off doing that if you make a lithium battery version of this kit. Most lithium charge controllers have a built in battery monitor that gives you some indication of charging.
You could. But you'd need the USB aspect to charge a phone.
Can you show or explain a bit more about how you hooked up the LEDs? Are they all in Parallel or Series?
Amazing work! Love the natural look, and the inlays are spot on!
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CNC Bottle Opener
Spicy Arugula Pesto
PipBoy 3000 (working)
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Bright Idea Light
Let's make a game controller!
Ductiles: Interactive Graphic and Message Board
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