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Arduino USB: Atmel Mega8 microcontroller and supporting components. See the LED on pin 13? It is flashing a message in morse code. This card has 14 digital I/O lines, 3 PWM lines, and 6 A/D input lines. All programmable via USB. Currently running on USB power, but you change the jumper to run it from a 9 to 12V source.
In November 2011, Microchip announced a worldwide series of technical training seminars—beginning in January 2012—that will show designers how to easily adapt to changing product requirements by migrating a real-world application from 8, to 16, to 32-bit PIC® microcontrollers (MCUs). These one-day classes will teach engineers how to migrate the application using one set of tools and with minimal code changes; demonstrating how they can save both time and money through reuse. The seminars will utilize Microchip’s free software tools and the “One PIC MCU Platform Demo Board,” depicted above, which is bundled with the PICkit™ 3 programmer and is available exclusively to attendees. For more information, visit: www.microchip.com/2012seminars
Microchip announced an expansion of its eXtreme Low Power (XLP) PIC® microcontrollers (MCUs) with the PIC24F “GB2” family. This new family features an integrated hardware crypto engine, a Random Number Generator (RNG) and One-Time-Programmable (OTP) key storage for protecting data in embedded applications. The PIC24F “GB2” devices offer up to 128 KB Flash and 8 KB RAM in small 28- or 44-pin packages, for battery-operated or portable applications such as “Internet of Things” (IoT) sensor nodes, access control systems and door locks.
I spent hours sketching out this design using my son's color pencils (which he was none to pleased about at the time) before I picked up a soldering iron to put this circuit together. (see the schematic I used)
Fundamentally it is Peter Fleury's Pony-STK200 design (see: www.lancos.com/prog.html#avrisp). Though, I added the 5V Voltage Regulator and the PNP transistor switch to drive the Red LED. The 74HC125 quad line buffer is needed for the Reset, SCK, MISO, and MOSI lines so I decided use a PNP (2N3906) transistor to protect the laptop's parallel port and drive the Red LED, which is on when the Pony Prog software is Programming or Verifying the AVR.
The primary purpose of this circuit is to protect the AVR microcontroller and the laptop's parallel port from damaging each other. AVRs really don't like voltages higher than 5.5V. Hence the voltage regulator to keep everything at 5V.
My first test didn't work, but after a thorough inspection I figured out I had mis-wired the Read Enable wire to the 5V line so I could never actually read data from the AVR -- a sub-optimal arrangement ;-).
After correcting my mistake the circuit worked perfectly, and still does!
The MPLAB® X IDE is Microchip Technology's next-generation, open-source integrated development environment—with cross-platform support for Linux, Mac OS® and Windows® operating systems. A host of high-performance features have been added to the new IDE, including the ability to manage multiple projects and tools with simultaneous debugging, an advanced editor, visual call graphs and code completion. And, MPLAB X remains the only universal IDE with support for an entire portfolio of 8, 16 and 32-bit microcontrollers—including all 800+ PIC® microcontrollers, dsPIC® digital signal controllers and memory devices. Explore the MPLAB X IDE today, via a free download from www.microchip.com/MPLABX.
This is a re-shoot of an old chip I opened up previously. I knew at the time that I could only see the metal layers and I needed a metallurgical scope to see anything else, so here we are.
Thanks to the improved camera and scope I can make out smaller details. According to the datasheet this chip has 128 Bytes of onboard SRAM and there are 32 rows and 32 columns in the mid-right block which equates to 1024 bits or 128 Bytes. Because of this I am fairly confident that block is the SRAM and the other two are the ROM.
This was pulled from an old opto-mechanical mouse which used a serial RS-232 connector. The top of the mouse and the ball were missing, so I was unable to identify the model. I think it is made by Logitech since the package has that written on it.
It was designed in 1988 and it uses HCMOS and It was based off of the Motorola 6800.
Data sheet here: usermanual.wiki/Document/MC68HC05P1TechnicalDataJan91.188...
Camera: SONY A6000
Number of Images: 77
Panorama Y Axis: 11 Image
Panorama X Axis: 7 Images
ISO: 100
Shutter Speed: 1/8"
Light Source: Reflected lamp built into scope.
DIC: Yes
Overlap: 50%
Microscope Objective: 10X
Microscope Eyepiece: DSLR Mount
Grid Used: 4x4 (Panning Movement Aid)
Capture Motion: ZigZag
Stitching Software: Autopano Giga
Other Software: GIMP for white balancing and sharpening.
Image Type: PNG
Image Scale: 49.5%
The PICrouter github is here.
This PICrouter is implemented the PIC32MX795F512H instead of the PIC32MX675F512H. So the RAM size is twice as large.
The PICrouter 795F512H version is possible to use the mruby. The following wiki is the Japanese document for implementation the mruby on the PICrouter.
github.com/tkrworks/PICrouter/wiki/mruby-implementation
Of course, you can buy the PICrouter 795F512H version on the tkrworks online store.
Enjoy the mruby and Open Sound Control world!
atelier.tkrworks.net/shop/index.php?main_page=product_inf...
A simple AVR breakout/programming target board for the ATmega168 microcontroller (and friends) in a convenient business card form factor. An open-source hardware project from Evil Mad Scientist Laboratories, read more here.
Microchip's MPLAB® REAL ICE™ Power Monitor Module enables designers to identify and eliminate code that consumes high current, in real time. Combined with the MPLAB REAL ICE in-circuit emulator and MPLAB X IDE, this development platform allows users to measure, graphically profile and optimize code power consumption for all of Microchip’s more than 1000 8-bit, 16-bit and 32-bit PIC® microcontrollers. Additionally, it offers unsurpassed micro-Amp current measurement, with an overall dynamic range up to 1 Amp, and a voltage range of 1.25V to 5.5V. At a list price of $379.99, Microchip’s Power Monitor Module is significantly more cost effective than similar tools, making it ideal for a broad range of battery-powered, digital power-supply, motor-control and metering applications. For more info, visit: www.microchip.com/get/M530
A simple AVR breakout/programming target board for the ATmega168 microcontroller (and friends) in a convenient business card form factor. An open-source hardware project from Evil Mad Scientist Laboratories, read more here.
Daisy chaining three Arduino microcontrollers: the Uno and Duemilanove send serial print messages to the master controller (EtherTen). LEDs display reads by the master.
The MC13224 from Freescale is a ZigBee System-On-Package device. The three dies pictured are the microcontroller, radio, and flash memory.
Having made up all the crimp/header plugs, time to give the board a check before I start drilling holes in the case.
Also a chance to think about the best place to drill the holes!
The more observant of you will notice that this isn't the case I used - I found a more suitably-sized alternative in a box in the loft ...
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
The TSL1401 sensor chip in the camera connects to two digital pins and one analog pin of the Arduino. For scale, the squares in the background are 5mm.
Back to this stuff again - this will be the main circuit board for my wife's nixie clock. It will hold the microcontroller, the real-time clock chip and backup battery, and the high-voltage power supply for the tubes.
What you see here are the four steps of preparing the board. Upper left, the bare copper board with the design for the bottom side of the board ironed on. Laminated on, really, since I use a laminator instead of an iron, but "ironed on" sounds better and reminds me of those little patches you used to get in cereal boxes. Upper right, the board after being etched (so the top layer now shows through). Lower left, the Lovely Shiny Copper phase after the toner has been scrubbed off. Lower right, tinplated and ready for drilling and cutting.
This time I tried a different circuit board layout program - Cadsoft's Eagle (free version). It's nice, though its interface is weird and it is limited in the size of board it lets you make. The limitation was not so strict I couldn't get this one done, though. Yay!
I had been using ExpressPCB's layout software, which is slick and unlimited in board size, but Eagle has two advantages: one, it can do automatic trace routing, and two, it isn't specifically designed to not let you make your own boards so it's much easier to get actual-size board imagery from it. These two things probably saved me a week of hobby time on this project even though I had to learn a whole new software package.
The autorouting really is nifty - you lay out your circuit as a schematic diagram, then you can create a board from that. The board initially looks like a blank rectangle with all the parts sitting next to it, the electrical connections in place but represented as straight lines so they all cross over each other. You lay the parts out on the board in what you guess is a good arrangement, subject to requirements like needing the power connector to be in a certain place and so on. Then you invoke the autorouter, which figures out how to make all the connections so that they get where they need to go and don't touch one another. This is pretty impressive - it's a low-level Artificial Intelligence problem, akin to (say) coming up with a delivery itinerary for several dozen pizza boys bringing pizzas to a bunch of different houses simultaneously, so that they reach everywhere in the shortest amount of time possible and without crossing each other's paths. As an AI researcher, I have enough professional egotism to think I could write a better one - but since they've saved me the trouble, I'm happy enough to use theirs.
Even better, you can tweak the autorouter's behavior to make its designs friendly to homebrew circuit board production. I attempted that for this board and I think it'll work. I need some practice before the boards I make are elegant - this one has some signals traveling a lot further than they really need to, but it should all work.
I added the hatch-filled areas in Paint Shop Pro as a postprocessing step. I wanted to save etchant - which you can do by filling the big blank areas. At the same time, I didn't want to run my printer out of toner, so I used a hatch fill instead of a solid fill. It seems to have struck a good balance.
Sorry I haven't been around flickr friends. I've been focusing on other hobbies...here's a dip from a trip to Maker Faire KC (top is from Photomatix and bottom is from Corel PaintShop)
After Maker Faire I was busy creating this Propeller MicroController project in my spare time... www.youtube.com/watch?v=h19vmYhT7wY
Mounted ZX Spectrum tape covers.
Mounted front panel from a dead, vintage audio amp. Holes are backlit with LEDs and the dials cycle up and down. You can control the speed and lighting by touching the wood on top of the frame - a capacitance based qprox sensor detects the proximity of your hand to act as a switch.
The switch is multimodal; a quick touch cycles the lighting modes to on/dim/off, holding your hand there for 3 seconds enables the speed setting mode - the dial increments one level on the panel meter per 2 seconds held, ie, hold your hand there for 10 seconds and the dials take about 30 mins to cycle, hold it there for 1 second and the dial will cycle at once every 2 seconds.
All control is done with a PIC microcontroller (before I swapped to AVR). This was my first electronics project.
Microchip expanded the development platform for its growing portfolio of innovative 8-bit PIC® microcontrollers (MCUs) with Core-Independent Peripherals (CIPs). Designers can combine these building blocks to perform application functions autonomously, and they can be interconnected with an increasing amount of integrated Intelligent Analog peripherals. Because these functions are deterministically and reliably performed in hardware instead of software, CIPs enable system performance that is far beyond traditional MCUs. For more information, visit: www.microchip.com/CIP-090915a
Computer controlled shutter for the Automatic 100 series packfilm cameras with manual exposure control. See www.chemie.unibas.ch/~holder/shutterpic/index.html
"Part of this complete breakfast!" Okay-- maybe not the best example of anything. The board on the lower left is a remote four-button keypad, and then the AVR drives the dot-matrix display.
A simple AVR breakout/programming target board for the ATmega168 microcontroller (and friends) in a convenient business card form factor. An open-source hardware project from Evil Mad Scientist Laboratories, read more here.
Computer controlled shutter for the Automatic 100 series packfilm cameras with manual exposure control. See www.chemie.unibas.ch/~holder/shutterpic/index.html
The back side of the circuit board contains an Intel 80C196KR microcontroller (large square IC on the left), operating at 16 MHz.
The 420 board contains 8 MB RAM to enable buffering of five 1.5 MB images.
The 460 board contains 16 MB RAM to enable buffering of two 6 MB images.
In comparison, a typical PC in 1994 contains a 66 MHz Intel 80486 processor with 8 MB RAM.
Related images:
Microchip Technology Inc., a leading provider of microcontroller, analog and Flash-IP solutions, today announced the MCP1754/MCP1754S low dropout regulators (LDOs). The devices feature a high PSRR of 70 dB at 1 kHz (typical), and a maximum output current of 150 mA at +125 degrees Celsius junction temperature. Both LDOs offer a high input voltage of 16V and an output voltage range of 1.8V to 5.5V, with standard output voltages of 2V, 2.5V, 2.8V, 3V, 3.3V, 4V and 5V, and output voltage tolerances of +/-2.0 percent over the entire temperature range. The MCP1754 provides enhanced features, such as a shutdown input signal and a power-good output signal, while the MCP1754S is the baseline version of the device. These LDOs are ideal for electronic circuits, such as in GFCI and AFCI circuit-breaker designs, and in the automotive, medical and consumer electronics markets, such as in automotive power adaptors, cell phones and medical devices.
Microchip’s 32-bit PIC32 microcontrollers provide a high-performance platform for developing quality digital-audio playback and accessories. The new PIC32 Bluetooth Audio Development Kit builds on Microchip’s existing stack-integrated Bluetooth audio module with a new low-cost, agency-certified Bluetooth HCI transceiver module based on a standard radio, AVRCP and A2DP Bluetooth profiles tailored for the PIC32, as well as both standard and advanced audio CODECs such as SBC, AAC and MP3. Additionally, this kit can be used with Microchip’s existing Made for iPod® and Android™ stacks. Together, these elements provide a versatile and powerful development platform with a high level of customization and flexibility. For more info, visit www.microchip.com/bluetooth