MCU Electronics projects. History This project didn’t look complicated but it was.
The MCU part is really simple: just some code for the Display, Keypad and DDS Communication. A DDS is a chip that is driven by a hi-frequency oscillator. I used a 50 Mhz clock. Inside this IC there is a big divider that goes down to less than 1Hz. GarageLab (arduino, electronics, robotics, hacking) - #42. iBionics. Insect Cyborgs NEW!
Our recent paper on roach-bots in IEEE EMBC and the related video PLEASE FOR A BRIEF HISTORY of OUR PUBLICATIONS Controlled by neurons, muscles are the micro-mechanical actuators of the body. Throughout history, humans have indirectly benefited from the muscle power of animals around them to build various civilizations. To achieve this goal, we presented a novel surgical procedure at Cornell University to insert artificial implants into insects at early stages of metamorphosis (Figure 1). Figure 1: Summary of the EMIT procedure Sample movie PLEASE CLICK HERE or FOR A SAMPLE MOVIE The EMIT procedure has opened an alternative window for neural-engineers to explore the details of insect flight neurodynamics and its control by allowing the implantation of various micro devices through a simple surgery with minimal or no resulting tissue damage.
Check the syllabus, they are all linked there by week. Intro Phys Comp Video Tutorials Ohm's Law Part I Introduction to Ohm's Law. Ohm's Law Part II and Voltage Dividers Why you need the fixed resistor! Shop Skills Tutorials Microcontroller Tutorials Pic Microcode Studio Tips and error corrections with Microcode Studio (the environment that you program PicBasic Pro in). Programming Tutorials Reading A Serial Protocol in Processing.
C TutorialsInstalling Eclipse Where to get eclipse and prepare it for programming in C. Cellular Network Tutorials Get connected to the ITP OpenBTS NetworkQuick Start How to register and get up and running on the ITP GSM network. Electrical Engineering. Nspire BASIC Science Programs. TI-Nspire Programming - TI-Basic Developer. The TI-Nspire is a unique calculator in the BASIC series.
The calculator's programming system is remarkably similar to that of the 68k's hardware, but because the Nspire's internal core is different, it needs a section on its own. Unlike all the older TI versions, the Nspire does not have a home screen or a graph screen. Instead, the calculator runs on a document that has five applications: Calculator, Graph and Geometry, Spreadsheet, Notes, and Statistics. The programming operates under the Calculator application. Although the Nspire makes good use of form and screen resolution, the programming is very limited compared to older versions. The Texas Instruments Nsipre is an upgraded version of all the other TI models. It has a very strange layout compared to the other TI graphing calculators. The second thing you would notice is the screen resolution. The final most notable thing is you might get lost on where every function is. Furthermore, the calculator has no home screen. Format If. Math.com Activities for TI Graphing Calculators.
Math Nspired Lesson Resource Center.
MechWare. Ecology. News. Sensors. Ardu. U-controlers. The Ethical Hacker Network. The $0 Android Oscilloscope « retronics. I recently had to get rid of my rarely-used oscilloscope due to space restrictions and started looking at alternatives.
The handheld devices started from about $70, but had known of some PC kits. I thought, couldn’t I just use the input for my PC sound card? So came across the Poor Man’s Oscilloscope. I also knew of $300 iPad oscilloscope, which was crazy money. Sat lonely in my box of old electronics, however, was a upgrade-made-redundant Android device.
How to Build The probe is a very simple modified mic and headphone set with a potential divider and some crocodile clips. Android phone with OsciPrime Oscilloscope Legacy4 pole 3.5mm jack (e.g. a handsfree set that comes with a phone)2 resistors in a ratio of roughly 1:10Probes (I used crocodile clips) with some cable (multicore is best)Perfboard (optional – you could solder directly)Heat-shrink / insulation tape Below is a diagram of how to wire. You may also run in to the problem of the headphone wire being annoyingly coated. Like this: Lab3 - Laboratory for Experimental Computer Science. Here we show a little Theremin module which plugs onto a Arduino Board that gives out the tune to a speaker or puts out the tune as control signal like MIDI, Servo etc.
We were using this device not only as a musical instrument, various kinds of proximity sensors, pointing devices or as interface in combination with Processing, Max or Pd have been build with this technique. How it Works The Theremin Module itself is as little LC type Radio frequency oscillator which generates a radio wave and gives out the frequency signal to the Arduino board. An Antenna connected to the LC resonator provides the Theremin effect when a person or some conductive material is placed next to the antenna. This leads to a slight frequency deviation of the oscillator frequency which is registered by the Arduino software. Video The Oscillator If you have a look at the Oscillator schematic you see the components L1 and C1 that are forming a resonator responsible for the oscillator frequency of about 4.1 Mhz.
Files. Vulpestruments. Flux, flux, flux. InMoov. Hacked Gadgets – DIY Tech Blog. R2 Builders Club Official Website. Ashish's Programming Journal. Retr0Bright - home. AASaver « Rayshobby. Update AASaver 2.0 is now available.
Buy it from Rayshobby Shop.For details about AASaver 2.0, assembly and usage instruction, please check this blog post. Order You can order the AASaver from my hobby shop. The kit comes with one assembled and tested circuit board, one AA battery holder, a pair of bright white LEDs (for use as flashlights), two breadboard headers (for use as breadboard power supply), and two screws and nuts. Overview When your electronic devices report that the batteries are ‘dead’ and need to be replaced, do you ever feel frustrated that there is often still a lot of juice in them? Based on an efficient boost regulator IC, the AASaver is a small and multi-purpose boost converter that can help you harvest the remaining energy in AA batteries.
Takes up to two AA or AAA batteries. As in the original AASaver, the 2.0 version works perfectly as a small flashlight. I also enjoy it a lot as a compact breadboard power supply. Hack a Day. The Mechanical Vivarium of Dr. Iguana. 5V Boost Switching Regulator Here's a little project I put together for a friend.
He wanted to build a project that ran off 5V but didn't want to use a 9V battery. I found an interesting part on Digikey that can take the output of 1 or 2 AA or AAA batteries and boost it to 5V. Infact the part can be programed for any output voltage between 1.8V to 5.0V using two resistors. If you leave off the resistors you get a 3.3V output. One drawback is that at 5V output the part only puts out about 200mA with two AA or AAA batteries. The other drawback is that the part comes in an SOT23 package which is pretty tiny. The board is designed to slip over the terminal of a dual AA or AAA battery holder.
Here a parts list of what you'll need. The links below lead to a printable PCB suitable for making the PCB via toner transfer. Enjoy. 6502 Primer index. Home | the links mine | 6502 Primer | large math look-up tables | 65c02 assembly structure macros 6502 PRIMER: Building your own 6502 computer Index to sections: 1.
Intro: Why a 6502? 2. Address Decoding 3. Happy building! Dmitry Grinberg. Apr 16, 2012, 2am PDT: Small schematic fix (SD card's SCK & VDD were switched) Apr 3, 2012, 1am PDT: new source code archive uploaded.
Sped up emulator (6.5KHz->10KHz) using FPM mode on RAM & changed icache config, updated porting guide, included kernel image & new smaller ramdisk, new full image Mar 29, 2012, 7pm PDT: new source code archive uploaded. It has a fixed Makefile and now includes a porting guide to help you port it to other boards/CPUs Intro It is common to see newbies asking in microcontroller forums if they can run Linux on their puny little 8-bit micro. Yes, it is true that a full Linux install requires megabytes or RAM and a 32-bit CPU with an MMU.
Storage With the RAM requirement put to rest, we have two to deal with. All that's left is that pesky 32-bit CPU & MMU requirement. Other features The board's communication with the real world occurs over a serial port. How fast is it? uARM is certainly no speed demon. Details on the emulator? Hypercalls? Thumb support? Source code? Home. Ettus Research - Fun Stuff. Let’s set the scene.
It is Thanksgiving Day, the table is set, the food is ready, and your wife breaks two cork screw pullers in the cork of the wine bottle. How do you get the cork out without digging it out and making a complete mess? Solution: Simple! Use three rolls of electrical tape, lockjaw pliers, one extra large adjustable wrench and a crowbar. Clamp the locking pliers onto whatever remands of the broken cork screw. Helium Frog Developments - Where crazy ideas come to life. Insentricity. MakeaFake : Nerdipedia. The epson ink Chip Replacement Hack. Some nitty gritty on creating a fake epson chip or chip eliminator. 5'th Sept 2008, It shouldn't be all that hard to make a fake Intellidge (AKA ink chip). Unless you are making ink carts this is pretty pointless. In general read only ink chips are more useful and actually a lot easier to do. I've heard from people saying they were working on a chip emulator and such but never heard the result or seen anyone publish anything.
There is also scope for variations on the theme such as write-once chips or chips which are usually un-writable but can be reprogrammed if need be. The term "program" has a double meaning here. For some but not all fake chips "reprogram" can mean to program firmware into a micro-controller such as a tiny-AVR. In future I will try to remember to use the words "rewrite" and "reprogram" as appropriate. I added an extra LED since taking the PCB photo. 6'th Sept. The code is basically working. 10'th Sept. Some progress. Success!! 24'th, Eddiem.com aka eddieworld. Blondihacks. Pushing Johnny’s secret buttons. Every pinball machine from about 1980 onwards (the solid-state era) has a diagnostic control panel inside it.
This is a set of buttons used to control service menus for running game tests, setting prices, gathering gameplay statistics, modifying game rules, and anything else an operator or technician might have needed to do. It has arguably become an even more important tool as these games age, because breakdowns become more frequent. Personally, I’ve probably spent as much time in those service menus as I have playing the game. At least, some days it feels like that. Ironically, Johnny’s diagnostic panel was itself in a very sorry state.
This thing is loose, the button labels are wrong, the harness is routed poorly, and it’s generally annoying to use. The root cause of most of these issues is that the bracket holding the buttons is actually the wrong one. Conveniently, the correct bracket is still available from Marco. Flute Finger Hole Locations. Determining approximate finger hole locations for a simple 6 hole flute is somewhat complicated. Much of what follows is due to the analysis of A. H. Benade (see "Fundamentals of Musical Acoustics," A. H. Benade, Oxford Univ Press, or "The Physics of Musical Instruments," N. The wavelength of the sound produced is determined by the flute tube and tone holes. The method described here is to estimate an effective length for a real (cylindrical) tube taking into account end effects, the size of the tone holes, etc. If the fundamental (all tone holes closed) corresponds to an effective length Leo, then the desired effective lengths for a six (or fewer) hole flute to produce notes of the (Western major) scale are given by: The actual physical length of the flute will be shorter than Leo and the distance to the tone holes (from the blow end) will be shorter than the values calculated in the table.
First, make your flute with no tone holes and adjust the length to match the desired lowest note. Robotic Xylophone. With the holiday season approaching, we are always looking for a way to add a little Christmas spirit to our office. This year, we thought it would be awesome to have a musical instrument that we could control with a NerdKits microcontroller kit, and have it play holiday music. Keeping true with the NerdKits spirit, we decided to build a xylophone, build the whole thing from scratch, and teach about solenoids and shift registers along the way!
Our homemade xylophone was a great way to put our milling machine to use cutting the bars for each note, and using the lathe for the solenoid forms and steel slugs. We made our xylophone from aluminum bars -- all 6061 aluminum alloy rectangular bars, with a 1.5" x 0.375" cross-section. We made the base from a 1/8" thick sheet of acrylic (a transparent plastic).
We used a 1.5" long nylon spacer, plus three #6-32 nuts, plus one rubber washer to set the height of the bar above the acrylic. We added four magnets to the top of each slug. Bunnie's blog. _-= Uzzors2k =-_ Project Site. Introducing...Apollo 13. Open source logic analyzer. Tabletop_object_perception. PyroElectro News, Projects & Tutorials. Tutorials. Current Projects. Null Space Labs. Carambola powered quadcoper. Embedded Lab. North Street Labs. HeatSync Labs. Colloidaldisplay. Hello, Savants! From 0 to C - teaching programming witouth a computer Hello, Savants! [studio] DIY. Open Hardware.