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Quadcopter (3D Printed) - All. Flight controller This code isn't as hard as you can think.

Quadcopter (3D Printed) - All

It just use 3 PID algorithms for stabilizng it in 3 axis (x, y, z also cold pitch, yaw and roll), code for getting angles from mpu6050's DMP (digital motion processing), and also handle radio receiving and some basic math to calculate data received by radio. It stabilize itself at 100 times a second (100Hz) that's enaugh for this drone. PID algorithms: There are a lot of great explonations of how PID works, and because I not a good teatcher I woldn't try to explain how it works. This code is just copied from MPU6050 library. Here are just few lines to receive array of 8 bit numbers from pilot and convert it to throttle and rotation on x, y and z axis. Pilot Code for pilot is straight forward. Both codes you can find below. Quadcopter (3D Printed) - All.

Solar panels

Humble Homemade Hifi - Cap Test. Technical specifications (according to manufacturer): "The Sonicap is well balanced and true to the source.

Humble Homemade Hifi - Cap Test

The word neutral is so loosely (and incorrectly) used that we prefer the term balanced. While capacitors suffer from more noise (high distortion) than most audio components, the Sonicap exhibits very low noise and parasitics. The presentation is rich in harmonics, warm, without the slightest loss of detail retrieval! As a matter of fact, the micro-dynamics of the Sonicap is unmatched by anything close to its price range.

All Sonicaps are tested at twice their rated voltage. Sound: Compared to a standard Mundorf M-Cap they are more transparent and clearer with lots more depth. Verdict: 8,5 Super PP capacitor (SPP) MKP 400VDC - 5% tolerance Technical specifications (according to manufacturer): "5 layers Composite dielectric, Super low DF. " Sound: First of all they need a much longer burn-in time than most capacitors, in the beginning they are rather aggressive. Verdict: 8+ Pringle Can MIDI Drums. NIXIETUBES, Russian Nixie Tubes, nixie clock kit, nixie clock, clock kit, nixie tube, tube, clocks, clock, nixies, nixie, in-18, in-12, in-17, in-1, in-2, in-14, in-16, ins-1, 74141, a101, DC Converter, sockets, neon.

Sphere's Nixie Tube Page - Nixie Tubes for Sale! Nixies from all over the world!

3D printing

Fjernstyring og reservedele. Musik og -instrumenter. Guitar. Robot. Electronic Circuits. Here are some neat circuits you might want to try.

Electronic Circuits

The schematics and printed circuit board patterns are GIF's, and may show up different on some browsers. You might want to save the images (especially the PC board patterns) to your hard drive, load them into a photo editor (Photoshop, Paint Shop Pro, The GIMP, etc.) and adjust the size before you transfer the pattern to a board. Printed circuit board patterns are available possible. This page is always under construction and there will be new additions from time to time. Some of these circuits were designed by me, most are not. You can rank circuits according to how much you like a circuit by clicking on the lightning bolt icons. Circuits are divided into categories as listed below. Some circuits in this list have little astrisk (*) markers beside them which give a basic amount of information regarding whether the circuit has been designed, tested or modified by the webmaster.

Back To Electronics Page | Mail Me | Search.

Battery and PSUs

Arduino inspiration. Telldus Technologies. DL4YHF's Audio Spectrum Analyser. Spectrum Analyzer with Waterfall Display and real-time audio processing This program started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger etc (see history).

DL4YHF's Audio Spectrum Analyser

You can download it from this site. Or look into the manual (in HTML format), even though the manual included in the archive will be more up-to-date. Furthermore, the same manual has occasionally been converted into a single PDF (SpecLab_Manual.pdf), but any attempt to create a common index and table of contents for this PDF, using OpenOffice (with proper page numbers instead of the hyperlinks) has failed miserably - see note in the preface of the PDF document. If you are looking for a short description in German language, look here.

Rasberry Pi

Revolights. join the revolution. by Kent, Adam & Jim. Dear Kickstarter Supporter, Thanks for checking out our project.

revolights. join the revolution. by Kent, Adam & Jim

We hope you are as excited about revolutionizing the bike light industry as we are. With your help, we will morph the Revolights bike lighting system into an innovative solution used worldwide. We recognize these lights are different, but we're from the Bay Area where different is, well, sometimes better. People aren't used to wheel mounted lights, but simply put, we intend to change that. Today we have a product (patent pending); a product we're proud of and believe in, but it's not complete! What is the Revolights bike lighting system? (Battery holding device and battery are not pictured, but they will be located on the hub. Where's development at? What's the money for?