Hub motorized 4 wheel drive wireless electric skateboard kit  

Landwheel drive is the newest drive system for skateboards that can be mounted under any deck. Just unscrew your rear truck and replace it with the landwheel Drive .    Specification of Landwheel Skateboard Drive:   Model Landwheel Drive( Dual Brushless in-wheel motors) Distance 20km Power 2 X 1100W Max load: 120kg Max Grade 20% Waterproof Water and dust proof (IP65) Frame Material Aluminum alloy + ABS Battery Li-Poly batteries Range 12-15km Weight 3.2kg (Include Battery) Size: 313 x 174 x 41 mm Certificate CE, FCC, RoHs, MSDS, UN38.3     Details of electric skateboard drive : 1. The Motors Two in-wheel motors Power 2* 1100w  Topspeed  35km/h Maximum Grade 20% Water and dust proof (IP65) Freewheeling when you push Exchangeable wheels 2.The Frame Solid magnesium single frame Click-in mechanism for the battery   3. The Battery Pack Range 12-15km Charge 2-4hours Weight 700g        Energy 94.08Wh    Capacity 3200mah Swappable via click-in mechanism Certified for airtravel Water and dust proof (IP54)   4. The Remote One button device Switch between 2 riding modes LED displaying state of charge Rubber coated for better grip Safety wrist strap

Topic by Hollie hua 


Donate to BGC & Receive PICO-8 for RPi!

Hello, Instructables Community! Here at Next Thing Co. we’ve seen such a great response from PICO-8 on C.H.I.P. and PocketC.H.I.P., we decided to keep going… Until Dec. 21st, give what you want for PICO-8 on your Raspberry Pi at getchip.com/pages/pico8. All proceeds go to Black Girls CODE, a Bay Area neighbor doing amazing work across the US introducing girls of color from underrepresented communities to computer programming. PICO-8 is a "fantasy console" that allows you to play 8-bit games created by the community. It also empowers you to edit existing games and code your own from scratch. Change the colors, music and create your own characters! We are excited to #CodeTogether and help support their mission to expand coding education. \(•◡•)/ - Lara and Everyone at NTC

Topic by push_reset 


Can anyone recommend a good Raspberry Pi case?

Hello! I am looking for a good Raspberry Pi case for a project.  I will be selling it so it needs to look smart, be highly robust and not be expensive.  Any recommendations?

Topic by T0BY   |  last reply


Calculate Resistor for Heating Wire

Hi there, My Goal is to use a piece of heating wire from an old hair dryer  (1.6 Ohms resistance for the length i want to use.) and heat it red-orange using my old USB power bank. 5V output from an 3.8V lithium ion battery i dont want to mess with the circuitry inside. Problem: The USB Power Bank has short curcuit prevention built in, so when i connect the heating wire the power bank stops supplying electricity. I found a 7.5 ohms resistor and connected it aswell, the wire became a little warm, the resistor incredibly hot but most importantly the power bank continued to supply power - success. I would like to know what resistor i should use to get the wire red-orange hot but at the same time keep the power bank safe and not overwhelm it - i think that would mean not drawing too much current? I also cant check how much current is flowing because my multimeter is too cheap and only goes up to 200ma, which the power bank exceeds. So how would i go about this? What resistor should i use for what wattage should it be rated. And since im a total newb id like to hear your train of thought as to why and how. Thank you so much.

Topic by emiliori   |  last reply


How can i charge a laptop battery without the laptop?

Hey! I have a project that requires a 11 v battery pack. I found that one of my laptops have just that and i want to be able to charge it without the laptop. How can i achieve this ? Here is a pinout of the connector http://allpinouts.org/pinouts/connectors/power_supply/dell-d500-d600-battery/

Topic by ddaemi   |  last reply


Chicken mesh and plywood radio/wifi reflector dish.

Haven't quite the time to do a proper instructible for this, but in case anyone finds it useful: http://solarflower.blogspot.com/2011/07/chicken-mesh-and-plywood-radiowifi.html Has schematics, 3d models and construction instructions. Cost about NZ$20 in materials (plywood, mesh, cable ties, screws), took a couple days to make, but really only because of the lack of proper power tools. Works real good.

Topic by SolarFlower_org   |  last reply


Attiny schematics

Recently I've been wondering if I could actually build a cpu, I knew about the attiny and thought that I might try to build it without any chips. (Ambitious I know) I'm pretty experienced at soldering and coding and have been doing both for 17 years so I reckon I can manage it. Does anyone happen to know the whereabouts of any schematics for the attiny 25/45/85? If you do please tell me, it would be a great help.

Topic by MakerBox   |  last reply


Welded structure for 2 camera

Hello, I am building a sensor base one modified stock camera for agriculture survey,this sensor will be under a drone. I an looking to build the structure that hold this two camera. I know how to weld using Stick and Mig so i was looking to use mild steel plate, and bend it to get more resistance. but i don't know how to calculate the minimum thickness ( weight is really important). On the photo attached the red circle and opposite screw hold and the blue one is a bigger screw hole. Each of the two camera weight 250 grams and they are 10 cm heigh. All the best Vincent

Topic by VincentD48   |  last reply


Rain sensor + stepper motor + arduino (Need help)

I am working on a SMART WIndow. This window is supposed to close automatically when it rains. Suppose the sliding window is being closed using a motor. How can i write a program to serve the purpose: When the rain sensor sense rain > activate the motor to close the window > after window fully closed > deactivate the motor. When the rain sensor dries (rain stop) > activate the motor to open the window > after window fully open > deactivate the motor.

Topic by aloy8301   |  last reply


Wanted Arduino Advice For Teenager

My son has expressed an interest in Arduino because he's in an after school group of "builders" in which a number of students are toying with Raspberry Pi. He was told that Arduino can be built using a ChromeBook - we don't own a Windows computer (only Macs). He believes that he could build using YouTube and other computer based research. Can someone tell me if Arduino is compatible with ChromeBook? With so many kits available, can you please advise one that will engage him for multiple projects and may even be used for growth but at the same time is not going to break the bank? Any advice is much appreciated!!

Topic by woooshhhhh   |  last reply


Line follower robot with 100 kg payload

Hello, I like to build a robot that follow a line and can support 100 kg payload,i was wondering where to start to build the chassis. I can weld and have some but  limited access to machining tool. But I was wondering if there is not some stuff i could hack to create it faster. Vincent

Topic by VincentD48   |  last reply


Best motor and switch for this swinging arm?

I am trying to make the following: i need a 4 foot arm to swing parallel to the ground at a fulcrum. Only needs to travel 90 degrees one direction, then back 90 degrees to its original spot - Kind of like 1 windshield wiper running parallel to the ground the weight of the arm plus load at the end is roughly 10pounds this would be triggered by a single button thats the gist of it. Now if. I could tweak it... i would like one press of button A to move the arm 90 degrees then it stops. A second press of button A would move the arm back to where it originally was.  Or, if this is too costly, I could hold the button down while the arm cycles 90 degrees and back, releasing the switch when the arm reaches its desired location I need cheap options or at least a good place to start. I have zero coding or electronics knowledge thank you

Topic by Adaptivemaker   |  last reply


Rc light ,flashing light

Ive tried and tried to get an LED to light up (on at all times) then add a flashing circuit on same led like a car turn signal. Any help would be greatly appreaciated

Topic by jbrownskunk   |  last reply


how to use LDR as a relay for RC car to increase voltage to motor

Hi there,  I would like to know more about how LDR's work, its quite difficult to source 3 volt relays in South Africa, so I had an Epiphany, why not use 2x  LDR 1x for Forward and 1x for Reverse on an RC car, I don't know much about how responsive the solution is, how many seconds or milliseconds delay  there is? Does it work like a switch?  would it be a viable option on an RC car? I'm sure this could apply to little 3 volt RC cars upwards, I know brushless is the way to go, however this would indeed be a great learning experience.  kindest Regards, Lee Reddy. 

Topic by Leereddy1818   |  last reply


Momentary flashing lights

What is the easiest/simplest method of making a flashing light (preferably a small string of LED's or a piece of EL tape) connected to a momentary push switch? no timer or any other complication just lights that will flash on and off until the button is released. i want to make a flashing indicator light and switch small enough to mount on a ring that i can wear on my pointing finger so that the button hits the back of my hand as i straighten my finger to point and the light flashes only until i curl my finger to release the switch.

Topic by ambientvoid   |  last reply


Five to ten 10MM LED require what power supply?

I am planning on making a LED reading light for my nephew, but I'm not sure what kind of power supply would be needed, or how long it would last. I have bought plenty of 10mm LED's and I'm planning on using one or two per light points, with there being five light points in an 8x11 inch space. What kind of power supply would I need for these? I was thinking of going with AA batteries, since they're readily available, but I'm not sure if I'd need one or four (put into one of those cheap battery holders, I think they're setup in series.) Also, is there a way to do it without resisters, or would resisters be required, no matter what? Thanks for any assistance! The Atomic Soul

Topic by TheAtomicSoul   |  last reply


How do I recharge my 18650 batteries

Hello everyone, and good day! I am attempting to add recycled laptop batteries to an old radio of mine, making it portable. I Need 12v to run it. I have made a battery pack already, but am worried that if I just use a 12v power supply to charge them, I might ruin the batteries. also, I want to be able to plug in and listen while the batteries charge. Is it true that all I need to do is to make the input and output at the same point? I hope this makes sense. Thanks in advance!

Topic by jason.eck   |  last reply


iMAX B6 Digital Battery Balance Charger

Hey i just found this cheap charger on eBay and i was wondering if it would be able to charge a pack of 18650(unprotected) 3P4S safely? i figure i could just run the charger to each 3P set and be confident it want gas/explode? http://www.ebay.com.au/itm/iMAX-B6-Digital-Battery-Balance-Charger-and-Discharger-For-Lion-LiPo-LiFe-GL-/282048500472?hash=item41ab6692f8:g:ACQAAOSwH6lXRSCK

Topic by andrewlapham2010 


ransformerless Power Supply circuits

Pls Suggest some IC name for transformerless Power Supply circuits of 12VDC

Topic by tsihabudheen   |  last reply


Temperature sensor with cool thermistor

Hi, I am trying to make a temperature sensor using a thermistor. I've made a basic circuit using an Arduino and some tutorials from this site and couple others, which works well but the thermistor heats up way too much - perhaps to about 50 or 60 degrees - but it needs to stay around room temperature for my application. I'm using a 5V output from an Arduino through a 15Ohm thermistor - am I doing something wrong? Many thanks for the help! The one I've made is almost identical to the one in this tutorial: http://www.circuitbasics.com/arduino-thermistor-temperature-sensor-tutorial/ except a different thermistor

Topic by Mickey_blu_eyes   |  last reply


DC Motor Stop and reverse for a feeder

Hi, I attempting to design a feeder that will raise and lower an access door to where the feed is at. The door will open at dawn and close at dusk. I am trying to design a setup similar to an automatic car antenna. When enough light hits the photocell, the motor engages, travels a distance or hits resistance and stops. When light is no longer strong enough, the motor engages in the opposite direction and after the same distance or it meets resistance, stops again. Is this possible to do without Arduino as I am trying to keep this cheap? If so, what do I need and how can this be accomplished? The photocell is not a requirement as I have seen astro timers that can adjust for the changing sunset and sunrise times. Please help. I've got at least 20 hours of research into this and am hitting dead ends searching forums. A circuit drawing would be an awesome addition!!!!!!!!!!!!!!!! Thanks in advance

Topic by tincupchalice   |  last reply


Does anyone still use 35MM film?

Does anyone still use 35mm film, or is it dead? I find shooting with film is enjoyable. I was out today photographing what insects i could find with my 35MM SLRs. I used both a Minolta MAXXUM SPxi and a Canon EOS Rebel G, both with 80MM lenses. Used 400 speed film. Coencidentaly, while looking through a local bookstore today, i found a copy of "pocket guide to 35MM photography" By kodak for 50 cents.

Topic by ScubaSteve   |  last reply


Simple 3 Floor Elevator Model

Hello I want to make a simple 3 floor elevator model. The Elevator should have UP and DOWN switches on every floor and should act as all normal elevator.  I need a simple and detailed circuit design and which components should I use for it. Circuit using Arduino Uno R3 is also preferred.  Can someone please help me?  Thanks

Topic by mbmz92   |  last reply


Could a 12v LED light strip be powered by a portable power bank

I don't know the exact specifications for my LED light strip but i know a 12v 2500mah lithium battery powered it for at least 2 or 3 hours, unfortunately it was a crappy Chinese knock off battery that damn near blew itself up after repeated use and i can't find a replacement that doesn't look like exactly the same battery. with that in mind are there any small power banks with a 12v output that i could use? or is there some means of boosting a 5v output power bank which seems to be the most widely available type?

Topic by ambientvoid   |  last reply


Atmel 532

Ok so I know this going to sound really dumb but what is an Atmel 532 chip good for?? I tried to google it but none of the results told what it is and what I could do with it? Can anyone here shed some light on it for me?

Topic by mbcharney   |  last reply


circuit board

I need to make a circuit board for a project. It is all 12vdc, I have a 1a fan and a 6a thermoelectric device one setting 1, plus another 6a on setting 2, and a 3rd on setting 3 So 1 is 7a 2 is 13a 3 is 19a How to make the board. Also a second device has the 1a fan plus a 4watt element, plus another 4w on setting 2, plus another 4w on setting 3 So 1 is 1a and I think 0.4a= 1.4a 2 is 1.8a 3 is 2.2a. I think

Topic by Johnieahenderson   |  last reply


peltier circuit board

Circuit board I need to make a circuit board for a project. It is all 12vdc, I have a 1a fan and a 6a thermoelectric device one setting 1, plus another 6a on setting 2, and a 3rd on setting 3 So 1 is 7a 2 is 13a 3 is 19a How to make the board. Also a second device has the 1a fan plus a 4watt element, plus another 4w on setting 2, plus another 4w on setting 3 So 1 is 1a and I think 0.4a= 1.4a 2 is 1.8a 3 is 2.2a. I think

Topic by Johnieahenderson 


BLUETOOTH INTERFACING WITH 8051(AT89C/S51/52) PLZ HELP

Hello guruz, recently i bought n bluetooth UART module (http://robokits.co.in/shop/index.php?main_page=product_info&products;_id=354) RKI 1545 I tried interfacing it with 8051 using the 10,11 pin UART pins, using SCON register(mode1) baud rate 9600. But there is no reception or transmission. However the bt module is working fine. Passed the loop feedback test(joined theRx to Tx pin of module standalone....link established echo received on Putty on WIN7 and blueterm android app )   CODE: #include void ini()     // Initialize Timer 1 for serial communication { TMOD=0x20;  //Timer1, mode 2, baud rate 9600 bps TH1=0XFD; SCON=0x51; TR1=1; } void recieve()  //Function to receive serial data { unsigned char value; while(RI==0); value=SBUF; P1=value; RI=0; } void transmit()  // Funtion to transmit serial data { P2=0xF4; SBUF=P2; while(TI==0); TI=0; SBUF=P1; while(TI==0); TI=0; } void main() { while(1) {   ini();   recieve();   transmit(); } }

Topic by skumar112   |  last reply


Getting a camera to record.

So I have this cheap waterproof reversing camera. And I want to set it up and record video with it, kind of like a security camera.  Can anyone tell me what I need to get, or what I need to do to record? Thank you in advance for the assist.

Topic by Cfitz4 


Help with old parts identification

I need some help identifying some old parts... Google didn't find anything that I could tell. They are: 1) AMI 8029vi C11262 (Some sort of old dip style IC chip) 2) DIS1283 8004 (This is some type of display but I can't seem to find anything on it. Wanted to see if I could hook it to an Arduino??) Thanks for any help. Mike C.

Topic by mbcharney   |  last reply


Need singleboard windows pc ...

Thinking about a diy laptop i would love a singleboard pc that could run windows and some modern games on low settings :) any ideas? Thanks!

Topic by tjacobs5   |  last reply


What lubricant to refill a fridge compressor with?

Hey all, I just grabbed a compressor from a fridge that had been badly mangled by a bulldozer at a demolition site, planning to make a vacuum pump or airbrush compressor (or both!) Trouble is, I thought the liquid it contained was leftover refrigerant, and drained it all out. I didn't really have a choice, as leftover freon was gassing out of the compressor (thought it had lost pressure, but there was still a little in the compressor) and it was sputtering the oil everywhere. I held it upside down while carrying it home, and when I got it here, it was apparently empty. Then I found out that what I poured out wasn't liquid freon, but actually vital oil that keeps it alive. The compressor runs fine, but I only tried it for a few seconds for fear of destruction. I have many lubricants here, motor oil, 2-stroke oil, bike chain oil, etc. If I'm to dump an oil into my compressor, any ideas on which is the best call, and roughly how much should it take?

Topic by Rectifier   |  last reply


Solder sucker?

Hello all.  I had a question about desoldering.  First thing is that I have desoldering wick.  I found out I was using it wrong.  I melted the solder and then placed the end of the wick in the melted solder.  But I watched a youtube video and according to that I should place the wick on the solder and then heat up the wick and solder as one.  But this still has not been working very well for me.  The wick is over a year old and I was wondering if this could be a problem.  But my other question is how well do those spring loaded solder suckers work?  I was thinking about perhaps ordering one off of e-bay.  Yes I know I might find one in a good hardware store but I have some paypal money I could use.  In case you do not know what I am talking about....it is the spring loaded suckers where you cock it, put it next to the melted solder and then press a button and it forms a vacuum and sucks up the solder into it.  I think I can pick one up for a few bucks off-line, so if you people say they work well then I will give it a shot. Also in case you want to know what I am working on.  This would be used for salvaging parts of of circuit boards.  Like right now I am trying to salvage a few capacitors and also a couple of flyback transformers from crt computer monitors.  Also tomorrow I am tearing apart a broken water cooler to see if there is anything I can take out of there. I have also being having a problem getting solder to melt in the first place.  But that probably just has something to do with the 2 soldering irons I am using and I am trying my best to figure it all out.  I know my way around computers as far as building and repairing them.  But soldering and desoldering is something I really want to learn to be able to further my computer repair skills.  Sometimes it would save so much money being able to solder and desolder myself.  Especially those darn ac ports that are soldered right onto the boards sometimes. I have not actually made anything from this site yet.  But this is a wonderful site and after cruzing the forums here I am pretty sure I will get some good replies.  Ok I will stop babbling and I look forward to your replies.  

Topic by jcaresheets   |  last reply


Using AC to operate a automotive 12 VDC relay

My question is:  can a typical 12 vdc automotive relay be operated (voltage across terminals 85-86)? I am building a car from a riding lawn mower for our grandson.  I want to operate lights from the 12 VDC circuit but I need a signal voltage to actuate the relay across relay terminals 85-86.  I would like to use the existing AC powered light(s) voltage for this purpose?  Possible?

Topic by mndb1971   |  last reply


Monster battery pack for pedalboard

Hi! first of all happy being here in such a full and interesting community. Since some time i have an idea fix, i would like to play guitar in the street, not for the sake of money but for pure entertainment. Following that intention i´m being gathering all equipment i need for that purpose. I was asking myself the question about power source for all that stuff. Actually i can make it easy, since i already bought roland cube street, that runs on 6 AA batteries. BUT, i guess nobody here likes easy things. Therefore here is my project: using acoustic guitar with 4 effects and the amp running on the SAME external battery pack. short description of the project : 4s4p battery pack for a total of 14,8V and 12 000 Mah more or less.. will depend on cells themselves. Theoretically it will mean 10 hours or continuous run with all of equipment. of course there will be step down converter and other bells and whistles that i will be happy to share once i start doing it. Questions mainly are : I know that Boss pedals have center negative connection, What the hell does it mean? please someone help with this cause im getting mad. Is it just inverting the leeds? positive one going to the sleeve and negative/ground to the pin? OR it means that the pin has to be  minus 9V? This is the main question as i dont want to burn 200 euros pedals second and less important one: i will mostly go with NCR18650GA units. And will arrange a balanced pack. As the charging rate is 1A rough it takes 3,5 hours to charge. If the total capacity is 12 amp as i'm planning will it be neccessary to wait 12 hours to charge it or 4s4p scheme will still need 3,5 hours to charge all of cells at the charge rate of 1A, can i also charge it at faster rate as cells state that discharge rate is10A and so i coud use up to 10A charger? Or maybe the smart chargers identify by themselves the best charge rate? thank you in advance please know it's my first project of the kind :D

Topic by IgorA26   |  last reply


Motion stream crashing [Raspberry Pi]

Recently, I've been toying around with a USB webcam and a little addon called "Motion" on my rasberry pi 2. My goal was to make and dd treating webcam. I successfully done this, but not without encountering a major issue. When I connect to my stream, it works for a few seconds, then motion crashes. I can tell because the little light on the webcam goes out. Why on earth is it doing that?

Topic by Dashing Rainbow Dash 


Getting an ESC to work with arduino

Hello every one, I need to know if its possible to communicate between an ESC and an arduino. I would like to use a tilt sensor measured by the arduino to control a brush-less motor through an ESC. I'm not sure if this is possible but if so what would be a good way to go about doing it? Thanks for any help

Topic by Daniel Quintana   |  last reply


Xbee direct input - without arduino

Hello! I recently purchased two XBee Series 2 modules for a personal project. I did everything I wanted with the arduino connected directly to the sensor but I want to try remote signal processing. I want to connect an analog sensor (or digital) to one of the XBee's pins and with the other Xbee connected to an Arduino , where I want to process data from the sensor. All the examples found on the net are made with XBee Series 1 but I hope someone still managed and XBee Series 2. I would be interested configuration made ​​with x-ctu or terminal. Thank you!

Topic by didrau   |  last reply


Recording digitally with an analog camcorder

I recently came into possession of a mid-eighties Newvicon analog camcorder. It has RCA outputs for the video and audio (mono), and I'd like to record the output from this camcorder as digital. The idea I had initially was to use something like a Flip video camera (in order to keep it portable), but then I realized that the Flip doesn't have an RCA input... in fact, nothing I know of has an RCA input, unless I wanted to plug it into a computer or a DVD recorder, which negates the simplicity of it recording to a video file that can be dragged and dropped onto my desktop. The reason for wanting to salvage this camcorder and use it instead of just using the Flip is because the video quality is incredibly "eighties" - the color is slightly askew, and the sensitivity to light means that moving the camera suddenly causes ghosting, which, to me, is desirable for the look i'm going for. Personally, I find it fun and interesting to use old things like this instead of the new stuff. The only drawback is the simplicity (or lack thereof) in being able to post things immediately in this digital YouTube age. I'd like to keep it portable. I'd like to keep it simple. Any ideas on a camcorder, or even a "digital go between" that would record onto an SD card or USB drive? Does anything like this exist? If not, I'd like something like an SD card go between, as I have a 32 GB SDHC that would work great for this kind of project. This is the same model camera - the video outputs are located on a proprietary PSU, which isn't a problem for me to carry around, or have plugged into an extension cord.

Topic by LinkTGF   |  last reply


Thermoelectric <Peltier> coolers

I would like to know if anyone out there in Instructables Land knows about Thermoelectric Peltier Devices- what they do and how they work. I have 3 of them in my collection of various electronic components & devices. I consider myself as having a good knowledge of thermoelectric peltier devices. If anyone out there thinks they know more than I do, OR works at a place that manufactures them, please let me know at labrath4@yahoo.com I'm currently unemployed, and would like to work at a place that manufactures peltier components- preferably in the testing and engineering department.

Topic by PeltierMan   |  last reply


Using ESP8266-01 WiFi module with Arduino

Hi! Need some help with coding again I'm trying to just eliminate the wire connectivity which used for serial read by PC, by introducing a simple ESP8266-01 module. Can anyone give me some hand with the coding part at where I need to transfer all my serial data to my browser?

Topic by PramithM 


Orange pi's 3.3V on board regulator

Hi everyone, I've set up a mediacenter with openelec on my orange pi PC. I've put a large heatsink on cup and rams and a small 5V 0.15Ah cooling fan. With two switches I am able to switch it on and off and choose between 5V or 3.3V alimentations from the GPIO. The 3.3v is intended to spin that fan not at full speed to reduce noise while watching film or listening to music with the mediacenter. I left the PC all the night open downloading torrent, and the morning later the fan wasn't spinning anymore. I powered off the system and used a day later. The fan were at that moment working. So my question are: Is it better to put an external voltage regulator (lm317)? Anyone can explain what happened? As I recently discovered that with zener diodes we are able to clamp the voltage to a specific value (if putted in the "opposite" direction, I guess), I was thinking if it were possible to use one of them in this case.

Topic by BBQ Bee   |  last reply


Anyone able to help with a Raspberry Pi magic mirror configuration issue?

Hi, I'm building a raspberry pi Magic mirror using MichMich's program found here:https://github.com/MichMich/MagicMirror The problem that I am having is that I can't get the clock and temperature to change to 12hr and Fahrenheit. I tried doing what it says here: https://github.com/MichMich/MagicMirror/wiki/MagicMirror%C2%B2-Modules But I still can't get it to change. Any help anyone can give would be greatly appreciated.

Topic by sir-zeke 


humanoid or bionic robot

Hello all im new to tech i was wondering what is needed to start building a humanoid or bionic biped robot. im looking to build it for speed precision and fast calculation. eventually ill post up some rough drafts of it. thank you for your responses.

Topic by Newbie216   |  last reply


AA Smartphone Charger

Is there a way to charge a Smartphone using a single AA battery? I already have a DC-DC booster to 5V but the current is not enough to charge the phone, can someone please help me with this?

Topic by Wihand   |  last reply


Neopixel motorcycle brake light and turn signals

Hello all,  i am planning to use a string of 144/m Neopixel RGB strip as a rear light unit for my upcoming motorcycle project. the idea is to have the lights work as rear running light, brake light, indicators and emergency indicators. so far i figured that i would need: - Arduino Nano(didn't want to use a a big micro controller, need to fit under a thin seat) - Water tight container to house the Arduino(also not to big) - Grommet to run the wires safely and dry in and out of the Arduino container - 1M Neopixel 144/m RGB  - Various wires - Clear 3/4" width PVC tube - Some Arduino programming knowledge i was planning to use the running power source from the motorcycle to power everything, which is 12v, now if i am correct the Arduino nano can take the 12v no problem, i am wondering if i power the Neopixels through the nano if i would need a power converter to switch the output to 5v from 12v. also i am not sure how the whole analog switching to digital signalling would work, so if any of you more experienced with Arduino people have any ideas or suggestion it would be much appreciated! Cheers Mimizuku.

Topic by Mimizuku   |  last reply


Lighting a short strip of LEDs w remote. volts and amps.

I made this POW edge-lit plexi for a friend and I want to make sure I power it exactly right. Any help would be appreciated.  Im using a 10 led strip. They are snipped from a rgb led strip 5050. rated at 12v. How do I know how many amps to use for such a short strip? below in an image are the full specs. it says 5amps for 5meters. would I use 12v 1amp or .5 amp? Plus does the remote control box(12v) take any amps?   I read that you dont want to under do it with volts and amps because the strip will try to pull what it needs then overheat. what about over loading it? I just need this to be safe. Thanks. *hope this is the right forum to post.

Topic by bsmith102   |  last reply


mobile camera to pc

I have a nokia 3110c camera i detached from the board i want to connect it with pc and without the phone board and i want to know the pinout (v+, Gnd, D+, D-) ? please Help

Topic by MinaN7   |  last reply


What is the best way to dim AC LEDs

I was wondering what is the best way to control a AC load with a Arduino. I am planning on building a Christmas lights display that will react to music that is playing. I would like to be able to control the rightness of the LEDs to. I know that Triacs are normally used to control AC loads but I've read that they supply inconsistent dimming. Another idea I had was to use a bridge rectifier to turn in to dc, then use a Mosfet to run it at like 10% duty cycle to avoid blowing the LEDs (Not sure if they could take the extended time under high load they might be subjected to). Then just increase or decrease the duty cycle to adjust the brightness. So all in all my question is will that work and is there a better way to do it.

Topic by supernoodle2014 


LED Strip Arduino

HI All, This might be a simple thing, but I am in a big of a Maker bubble and dont have anyone to call up and ask this question to. I have an arduino that I want to hook to a LED strip, THe thing is i dont know much about power and how to measure/ know you wont fry your stuff and Im worried that I might do that. So, I am coming to you to ask. Would this work? What do I need to do to make this work?  This is the type of LED Strip that I have.  https://www.amazon.com/Flexible-Non-waterproof-Decoration-Lighting-Daylight/dp/B00HSF65MC/ref=sr_1_3?ie=UTF8&qid;=1477221020&sr;=8-3&keywords;=led+strip+lights Thank you for your help!

Topic by mrworth   |  last reply