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The Serial Peripheral Interface (SPI) is one of the popular embedded serial communications widely supported by many of today’s chip manufacture and it considered as one of the fastest serial data transfer interface for the embedded system. Because of its special in/out register configuration, the SPI master device could transfer its data and at the same time it receive a data from the SPI slave device with the clock speed as high as 10 MHz. Beside its superior data transfer speed; SPI also use a very simple data transfer protocol compared to the other serial data transfer methods. For more information please visit www.ermicro.com/blog/?p=1846
Microchip's dsPIC33FJ16 “GP,” dsPIC33FJ16 and PIC24FJ16 “MC” devices enable advanced control for cost-sensitive general-purpose and motor-control applications.
Without a computer or a microcontroller, time machine: inner landscape is interactively controlled by five-fifty-five timer chips and photo resistors which advances slide show imagery and amplified sounds via analog and digital sound circuitry.
by Melissa Clarke
for more info:
itp.nyu.edu/shows/winter2010/2010/12/06/time-machine-inne...
Computer controlled shutter for the Automatic 100 series packfilm cameras with manual exposure control. See www.chemie.unibas.ch/~holder/shutterpic/index.html
CORRECTION: The Darlington Transistor is a MJD112 (not 122), any similar NPN Darlington will do.
The Secret Project Circuit Bward She Works! Yhey!
Seen here resting upon The Development Environment of Kings.
This is the first time I've attempted to make a circuit with a surface-mount microcontroller. In this case, a SOIC version of the Atmel ATTiny861. How very encouraging that it works and did not splode!
I goofed and forgot to take a picture of the underside of the assembled board, which is where all the interesting bits are. But you know what? I made two of them, so I can take a picture of the guts after assembling the other one. Or I could just remove the high-tech protective backing on this one, which - like the one on the Ad-Hoc Power Supply - is a piece of cardboard held in place with electrical tape.
Microchip Technology offers the industry's broadest portfolio of semiconductors specified for operation up to 150° C ambient. The portfolio includes 8- and 16-bit PIC® microcontrollers (MCUs) and dsPIC® Digital Signal Controllers (DSCs); serial EEPROM devices, and analog products which are qualified and tested in accordance with AEC-Q100 Grade 0 requirements. For more information, visit: www.microchip.com/get/401065739467593
The 8 pins PIC12F683 microcontroller is one of the smallest members of the Microchip 8-bit microcontroller families but equipped with powerful peripherals such as ADC and PWM capabilities. This make this tiny microcontroller is suitable for controlling the DC motor speed. In order to demonstrate the PIC12F683 capabilities and to make this tutorial more attractive, I decided to use the PIC12F683 microcontroller to generate simple and yet fascinating laser light show from a cheap keychain laser pointer. For more information please visit www.ermicro.com/blog/?p=1622
Talks and performances by people doing strange things with electricity
Fri 23 March 2012, 6.30-10pm with interval at the Showroom Cinema, Sheffield.
Dorkbot is a meeting of people interested in electric/electronic art in the broadest sense; robotics, kinetic art, microcontrollers, interactive art, algorithmic music, net.art... The only real conditions are that it is a bit strange and involves electricity in some way. It is really defined by whoever turns up, be it engineers who want to be artists, artists who want to be engineers, or the otherwise confused.
This MEGADORK event features a cabaret of talks and performances from among the UK's dorkiest, to entertain and amaze:
Paul Granjon - A strange performance from the world renowned self-styled robot artist.
Patrick Tresset - Talks about his drawing robot Paul (on show as part of the Alan Turing: Intuition and Ingenuity exhibition).
Daniel Jones and James Bulley - talking about generating live music from patterns of weather.
www.variable4.org.uk/about/intro
Sarah and Jenny Angliss - playing robot music from past futures.
spacedog.biz
Sergi Jorda - talks about the Reactable tangible tabletop music playground (which you'll be able to try out at the Central Library Saturday 24 March)
Dan Stowell - Demonstrates his use of the Risset illusion in techno music.
Silicone Bake - Live coded pop songs about love, death and counterfeit watches, where all lyrics are taken from spam emails.
Megadork is curated by Alex McLean.
Dorkbot started in New York, spread to London, and now dozens of cities around the world, including several active UK chapters; Sheffield, Bristol, Anglia, Newcastle, Cardiff and Alba (Scotland). Find out more at: www.dorkbot.org
Lovebytes 2012 - Digital Spring
A Festival of Art, Science and Technology
22-24 March
Sheffield UK
I made a Mandelbrot Set viewer with an Arduino. It does zooming and it's pretty cool.
There's a video at www.youtube.com/watch?v=ArPrnud6O7A
More details at feelslikeburning.com/projects/mandelbrot including schematics and code.
Russ connected an MCP4822 dual 12-bit digital-to-analog converter (DAC) to the fine Tektronix 2213A oscilloscope. A program (sketch) on the Arduino microcontroller drives the DAC and generates the image by steering the scope's CRT beam along the lines in the drawing (vector-scan). en.wikipedia.org/wiki/Vector_monitor
Photographed at the Bristol Hackspace: bristol.hackspace.org.uk/
With LCD panel removed.
The "old school" 89C52 microcontroller seems incongruously large!
One would normally expect a PIC or an Atmel micro these days . ...
Because there were some questions, here a picture of my microcontroller hardware. I added some notes to the picture.
This is a side view of the model R/C tank I am designing on a gearbox + Tracks & wheels from Tamiya. The radio is Hitec and two receiver servo outputs feed my microcontroller-based Pulse Position Modulation to PWM converter power output to the two motors.
Full details at www.5volt.eu
As the electronics hobbyist one of knowledge that we have to be familiar with is how to make our own printed circuit board (PCB). Making our own simple single side PCB actually is not require a sophisticated technique and technology as you might think, instead most of the required materials is already available at your home. For more information please visit www.ermicro.com/blog/?p=1526
ESP32-S3 TFT Feather knockoff. Bought this one from AliExpress. Running CircuitPython and wanted to see what how showing an actual photo looked. In person it looked better than shown here and looked pretty good for a 1.14" 240x135 screen.
In June, the Friends of Freeman Library received a generous $1,000 donation from United Space Alliance. U.S.A.'s donation supported the purchase of at least a dozen Sparkfun Inventor's Kits, which will allow older kids and teens to learn in a series of special library programs the basics of microcontrollers and how they work. Our CreatorSpace partners have also pledged help with instruction in these programs. Many thanks to U.S.A. and CreatorSpace for their continued support of Freeman Branch Library!
Ring shaped magnet is scavenged from headphone and it is glued into this Styrofoam piece along with piece of plastic pipe to reduce the traction. Washers are added to increase the weight.
Trying out some xmegas. Read more here.
(This board doesn't actually have USB, but it uses a USB port for power. I'm using this board here so that I can power it from my laptop.)
Complete with "vanilla" LCD Panel
An impulse purchase, and the physical design means it isn't that convenient to use, but interesting nevertheless ...
to run it around in the real world and get a little experience at high framerates. Controller and camera in old VHS tape box. Cheat sheet on left cover shows framerates as indicated on LED bargraph on controller. One button control system scrolls through bargraph. Each position is a different framerate except the last one which lets camera pause. If button is not pressed for 30 sec, it starts the indicated program.
"Electron Wrangling for Beginners" class at Machine Project gallery in Echo Park.--
More stuff by jbum:
Microchip's PIC12LF1840T48A is the first in a family of single-chip devices that integrate an eXtreme Low Power (XLP), 8-bit PIC® microcontroller with a sub-GHz RF transmitter. The PIC12LF1840T48A’s combination of features in a single, 14-pin TSSOP package makes it ideal for space-, power- and cost-constrained applications, such as remote keyless entry fobs for automobiles, garage doors and home security systems, as well as a broad range of other home and building automation systems. Additionally, the device is optimized to run Microchip’s royalty-free KEELOQ® advanced code-hopping technology, a proven security technology used worldwide by leading manufacturers. For more info visit: www.microchip.com/get/K4KF
Talks and performances by people doing strange things with electricity
Fri 23 March 2012, 6.30-10pm with interval at the Showroom Cinema, Sheffield.
Dorkbot is a meeting of people interested in electric/electronic art in the broadest sense; robotics, kinetic art, microcontrollers, interactive art, algorithmic music, net.art... The only real conditions are that it is a bit strange and involves electricity in some way. It is really defined by whoever turns up, be it engineers who want to be artists, artists who want to be engineers, or the otherwise confused.
This MEGADORK event features a cabaret of talks and performances from among the UK's dorkiest, to entertain and amaze:
Paul Granjon - A strange performance from the world renowned self-styled robot artist.
Patrick Tresset - Talks about his drawing robot Paul (on show as part of the Alan Turing: Intuition and Ingenuity exhibition).
Daniel Jones and James Bulley - talking about generating live music from patterns of weather.
www.variable4.org.uk/about/intro
Sarah and Jenny Angliss - playing robot music from past futures.
spacedog.biz
Sergi Jorda - talks about the Reactable tangible tabletop music playground (which you'll be able to try out at the Central Library Saturday 24 March)
Dan Stowell - Demonstrates his use of the Risset illusion in techno music.
Silicone Bake - Live coded pop songs about love, death and counterfeit watches, where all lyrics are taken from spam emails.
Megadork is curated by Alex McLean.
Dorkbot started in New York, spread to London, and now dozens of cities around the world, including several active UK chapters; Sheffield, Bristol, Anglia, Newcastle, Cardiff and Alba (Scotland). Find out more at: www.dorkbot.org
Lovebytes 2012 - Digital Spring
A Festival of Art, Science and Technology
22-24 March
Sheffield UK
Microchip Technology's PIC16(L)F1826 and PIC16(L)F1827 [PIC16(L)F1826/7] general-purpose 8-bit microcontrollers (MCUs) provide an advanced peripheral set that includes an mTouch™ capacitive touch-sensing module and dual I2C™/SPI interfaces, along with “LF” versions featuring industry-leading low power consumption via Microchip’s nanoWatt XLP eXtreme Low-Power technology. For further information, contact any Microchip sales representative or authorized worldwide distributor, or visit Microchip’s Web site at www.microchip.com/get/400846900115741.
I'm still exploring the basic behaviors of transistors and capacitors, since I've never seen them explained terribly well beyond "capacitors store charge!" and "transistors switch and amplify!"
I'd gotten the Parallax BASIC Stamp HomeWork board for Christmas, but never got around to programming it since, well, it's programmed in BASIC, and the BASIC tokenizer doesn't work under Linux (well, not without some trickery, anyway). Compare that with the Arduino, which can be up and running in a matter of minutes, and uses C/C++ and the GNU toolchain.
I picked up the voltmeter at Ax-Man Surplus. It looks nifty and chunky, but unfortunately the needle isn't damped at all, so it wobbles a lot when voltage goes on or off. It's an EMICO NF2C-2137. The company is "Electro-Mech. Inst. Co. Inc., Perkasie., PA., U.S.A." Ah, the goold old days, back when the period was the "e-" or "i-" prefix of its day (and yes, there was really a period after "Perkasie" on the label)..
A good power supply is an essential subject to the microcontroller's base project; it's like a heart that gives a life to our microcontroller. Sometimes we take it for granted the important of having an adequate power supply to our microcontroller project and this can lead to the unexpected result or behavior from the circuit. For more information please visit www.ermicro.com/blog/?p=820