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Hello ihart! Loving this project. My husband and I are very quickly about to finish our master bedroom and designated a spot to do a tv lift cabinet and planner plenty of electrical. I want to get our lift, or perhaps get it on the Christmas list! My plan was to order a kitchen cabinet as I can get a very good discount, and tweak it. Why did you choose this brand for lift? Do you think we could tweak a cabinet and make this work? We built our home and are quite handy. I was thinking we would just have cabinet maker not attach the top of cabinet as a few lifts have the lid attached to the top of the lift so when closed it is the cap. This lift wants a hinged lid? Thoughts for me? Thanks!
How to Make a TV Lift cabinet
Rideable Segway Clone - Low Cost and Easy Build
If you are planning to make a Segway Clone, I recommend that you follow this Instructable with the exact code here. Afterward, If you decide to change the code to use a PID controller, you can use the Arduino library for it or code it yourself using this great reference:http://www.wescottdesign.com/articles/pid/pidWithoutAPhd.pdf
Poul,Please start with some basic Arduino How-to code to learn how to code and use the Arduino GUI. Then come back to this Instructable.You didn't answer this question from 3 months ago:Make sure the pullups are installed and the correct values?
Hi IhartIt is not managed to program our seegway yet. Maybe can you please tell, if we are doing something wrong. i´m not very good at computer, and have no experience with programming at all.I connect the arduinoto the computer, and open the hartway digital. Tapping the arrow upload. Is the MPU also programmed, with this upload.?Is there anything to be set in the top line.? (sketch,tools)I have been inside tools and seriel monitor, as you described earlier. I put it to 115200 baud, and it showed a lot of numbers and degrees. The displayed numbers for 7 hours. Is there a step by step instruction somewhere, to show how to do.?I´ve done all wiring short, and twisted them.thanks for your help.Poul
Wondering if you know of an in depth guide on how to code a project like this if you had minimal coding experience. I'm looking to interface my own PID control expressions / code with the board, do you know how I would go about doing so?
Superhero Costume Class
Designing a Supersuit
Thanks for sharing this method of ironing on a laser printed image to the bare PCB. FYI, I used to make my own PCBs but have recently switched to the newer low cost fast turn PCB houses for mine. I am able to wait a week or 2 for my boards as I write the code.For example, OSH Park (in the USA) will give you three 1" x 2" boards (with text and drilled holes) for $10 (including shipping) in 15 days. It feels like stealing when you get the boards back... ;-)This website is awesome and lets you put in your board characteristics to find the best price/timing for your PCB designs by showing information from 27 different vendors including OSH Park: http://pcbshopper.com/
Wood Bike Rack for 5 Bikes, Fast and Low Cost Build
Easy 5-Minute Crepe Recipe
TV Lift Cabinet - Shelves
Thank you for the link. I have ordered them from Australian seller in Ebay. I will use spring loaded switches until then. As I can see in the schematic only s1 and 5v power lines are used from the motor controller. don`t you have to use s2? just want to confirm. because on my 2nd trial only one wheel started turning. Thx for your help
4 independent switches will work as long as they have spring return. I see the right type of switch here on ebay but it is more expensive than it should be: http://www.ebay.com/itm/NEW-Momentary-on-Off-on-SP...By the way, a potentiometer will not work with this design.
Hi IhartThank you very much for your quick reply. Still couldn`t get it to work.but I am still working on it in my free time. Please apologise for my ignorance. I am a emergency medicine Doctor. Do not have great knowledge of electronics and programing. But I do have special interest in electronics. I have made a remote control lawn using sabertooth motor controls.I could not find those rocker switches.can I use 2 switches for each (total four) also I have seen using Potentiometere for those. I really appreciate your help which i don`t find it from some other people in the site.
Hej LarsThe wheels i am using, is from a wheelbarrow. I have bought them in a build marked. You can get them with wheel bearings, and then mount them to a threaded rod, whith some nuts. If you not cant find the wheels in your build marked, let me now, and i will try to find a number to them.Best regards, Poul - RieR1
Hi IhartThank you for sharing you great work. I am really interested in this and trying to make one. Just want to to know how you operate tilt switch and steer switch. I tried using a potentiometer for tilt switch but it didn`t work. still unable to make wheels move. - isuru7777
The tilt and steer switches are both push spring type switches. When you push them, they make contact. When you stop pushing them, they break contact.To adjust tilt, just push a few times in the direction you want. Same idea with steering.If the wheels wont move, try the steps in the debug section. Send a detailed video of the problem if it still wont work after you try the debug.Good luck!
Update: Segway Clone - Stronger Design Modification
Hi Poul.I'm currently doing research for my own Segway clone build. Do you mind telling me what kind of wheel assembly you are using (preferably with exact model names)? I initially wanted to use Razor E300 wheels (I think the author here is using E200s, which are smaller), but they are freewheeled, unlike the E200s, meaning that they can only be driven in one direction without modification (like on a standard bicycle).. which is obviously no good for a Segway. The wheels you are using seem to be of comparable size, so they might be a good fit for my project. I'm from Norway, so if you managed to import these cheaply to Scandinavia, maybe I can use the same vendor.- Lars
Awesome project and thanks for sharing the info. I am going to start this project in a day or two for a competition but I am going to use 1 800w motor only. Lets see how it goes.
Very nice. How long did it take you to build the cabinet and (please don't be modest as there is to much money at stake) what do you consider you level of carpentry expertise? I haven't read the entire write-up, but how much of the $1,200 is the cost of the lift itself?
Hi Ira, great project. I bought an MPU6050 to try out as much cheaper than the IMU's I use. I notice from Jeff Rowberg's site that the Angle_Y value is derived from on-board sensor fusion between the gyro and accel within the 6050 (Kalman filter or something like that). Therefore you do not need to do the sensor fusion with a complementary filter on the Arduino at all, as you have at the moment. I have changed the balancing part of your code so it back calculates a rate of rotational tilting for the D term of the PID, I use Angle_Y for the P term and have an I term too. You then play with the P I and D constants listed at the top plus the overallgain value until it balances. It might work more smoothly as a result as I use a very similar method in my current one wheelers. I have sent you a PM as can email you the code to try out.Best wishesJohn
Confused. It looks like you are balancing in the mp4. If you want to make it less sensative you can tweak some of the variables at the top of the code.
XenonJohn,Thanks for commenting here and thank you for your work on self balancers! Your designs helped make this one possible. Check out XenonJohn's page for some great instructables.
Thank you for sharing the code and guidance ,I have made the segway but still i face some problems ,when i pull the segway back its taking some delay so i cant balance ,i am using 200 w 2750 rpm dc motor ,
Hi Max,It sounds like what you are describing might work. I bought the Firgelli lift to avoid that part of the design because I'm not good at it. The purchased lift has the top and bottom senors and IR control built in. The top sensor which is the TV height has a programmable stop which is important unless you make yours go to an exact height or can move the limit switch.Let us know how it works out or make an instructable to share if you have good luck with this!
I have built a few self balancers using the Sparkfun Part No. SEN10121 IMU which also connects via I2C. I see some people here having trouble with their IMU not communicating well with the Arduino. Here is just my 2 cents worth but what worked for me was (i) to obtain some flexible thin lengths of coloured insulated wire by extracting them from some 9 core shielded cable (much easier to work with and keep everything neat between IMU and Arduino), (ii) keep these wires between Arduino and IMU really short, (iii) SOLDER the IMU wires to the Arduino rather than using push in pins. As my wires are thin I tin a 2mm uninsulated part at the end then solder that to the underside of the Arduino board where the relevant header pins just slightly poke through. (iv) I choose a common ground pin rather than using various GND pins on the Arduino (I have several to choose from as I use a Mega). Hope this may help somebody. I am not an engineer but have a huge amount of trial and error / falling-off experience!
I want to have a go at making one of these but I'm hoping to try pick up a linear actuator and attach a TV bracket onto it to save on $$$. The trouble I'm having is working out what size actuator I will need. I have a 32" TV that is 450mm high, so I'm assuming I will need one that lifts up to 500mm(ish). Is this correct in your opinion? And will there be any other measurements I will have to take into account?
Nice Sharing. You can also try Chocolate Souffle at here
Bedroom Lighting Control
Hi Poul,pull-ups are the 2 resistors in the design. They pull up the voltage on the I2C bus to reduce switching noise. The ones you are using sound good.Monitor the USB output from the Arduino, as described in the Debug:Step "35: Optional: Debug step."Edit the Arduino program to do this:To enable printing to the serial monitor, set this to a 1:#define DEBUG_ENABLE_PRINTING 0 //normalLoad it into the Arduino.Put the Segway up on a bucket or step. Hook up the USB cable between segway and computer. click on the "serial monitor" pull down in the Arduino menu on your computer. select the 115,200 baud rate in the Arduino menu.turn on the segway and you should see messages flowing out of the arduino to your computer screen.Read the debug section and try to follow it. Let us know how it goes.
Thanks for your prompt reply.I have read the most of the instructable.I do not know what pullups are.I will twist the wires tighter.Can i use thicker wires between the MPU and Arduino.?I have used metal resistors 10 Kohm 0,6 watt (5%), are they good enough.? or should it be coal resistors.Where do i find monitor usb output. Is it one of the blue boxes on the top of the program.?I just thought Arduino should be connected to the computer, and then upload the program.? Is there a program for the MPU also.?With best regards, Poul
That looks like a beautiful build. You are having some issue between the Arduino and Acell/gyro board. Did you check the debug section of the Instructable? Make sure the pullups are installed and the correct values? twist wires tighter than you have shown in picture.Monitor USB output with motors not running and make sure that when you tilt the board, the Arduino thinks it's getting the right angles.
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