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A TINI microcontroller board and its breadboard socket. The TINI is a relatively cheap, network-enabled Java computer.
One strip of conductive tape should connect the lower-left leg of the microcontroller to the left leg of the LED; the other goes from the lower right leg of the microcontroller to the right leg of the LED.
Introducing Microchip's new facility, the India Development Centre, Bangalore. The fully fledged development center, which works on integrated-circuit development and marketing, microcontroller development tools and corporate information systems, was officially inaugurated by Mrs R. Rajalakshmi, Director, Software Technology Parks of India, Bangalore and Microchip's Executive Vice President, Ganesh Moorthy
Introducing Microchip's new facility, the India Development Centre, Bangalore. The fully fledged development center, which works on integrated-circuit development and marketing, microcontroller development tools and corporate information systems, was officially inaugurated by Mrs R. Rajalakshmi, Director, Software Technology Parks of India, Bangalore and Microchip's Executive Vice President, Ganesh Moorthy.
Introducing Microchip's new facility, the India Development Centre, Bangalore. The fully fledged development center, which works on integrated-circuit development and marketing, microcontroller development tools and corporate information systems, was officially inaugurated by Mrs R. Rajalakshmi, Director, Software Technology Parks of India, Bangalore and Microchip's Executive Vice President, Ganesh Moorthy.
The ULN2803A is an eight-way darlington driver chip, capable of handling 500mA per channel. Good enough for small stepper motors or DC motors, using the AVR's PWM outputs.
Not so interesting or material this week - need to write the software for the die roller. Though electronic component fiddling does resemble playing with Legos, microcontroller-based projects also have a programming side that needs to be done and in which I am more at home, being a long-time software guy and a novice hardware engineer.
I'm pretty busy this week, too, so I doubt I'll finish it today, but it shouldn't take long.
In case you were wondering, this is what the software development environment for the Microchip PIC microcontrollers looks like, if you develop in assembly language. Details on request. This is a slightly weird angle on it, since it is a Windows program and I'm running it under "wine", which is a pretend-Windows environment that runs under Linux. It's a little bit hiccupy that way but lets me do the typing and some testing. I haven't tried actually sending the program to the chip from this Linux laptop - I use the tiny Windows netbook for that since it fits handily on my cluttered hobby table - but I like the Linux machine for the software part since it has a much bigger screen.
The reference to "Nigel code" in the comments is due to a now somewhat dated but still live and useful PIC Tutorial site by Nigel Goodwin. It has several useful examples of applications of the PIC chips, from which I've cribbed a fair amount for some of my projects. Its attached forum shows activity as recently as last August but mostly it went dormant around 2006. Great site for beginners even still.
Jee-Thermo, a simple thermostat for the Jeenode, Arduino based microcontroller board. Consists of a TMP421 temperature sensor and my standard LED status indicator. More details at www.ka1kjz.com/797/simple-thermostat-for-jeenodes/
2Pcs MAX3232 RS232 Serial Port To TTL Converter Module DB9 Connector With Cable
2 PCS for EUR 2,61
100% Brand New
Size: Approx 3.3cm x 3.5cm x 1.7cm(LxWxH)
Cable: 21cm(including 2 ports)
Working Voltage: 3V-5V
Quantity: 2 Pcs
MAX3232 chip
Pin definition: GND, RXD, TXD, VCC, +5V
Package Content:
2 x MAX3232 RS232 Serial Port To TTL Converter Module DB9 Connectors with cable
The right-hand controller has had its original microcontroller removed, and replaced with a FunnelIO Arduino board, XBee radio, and LiPoly battery. The power switch on the side is ugly, but functional and easily accessible.
I am planning to rebuild these in the future to not look so hacked and obviously made from Wii Nunchuks. Maybe something with stained wood and polished brass... For now I just needed something functional and reliable.
The Digilent Pmod MTDS is a gorgeous 2.8" touchscreen display with a powerful on-board microcontroller that performs graphics processing tasks. The display is a capacitive touchscreen with QVGA resolution (320×240) and 2 finger multi-touch support.
The most compelling aspect of the Pmod MTDS is the programming experience provided by its Multi-Touch Display System (MTDS) Firmware and the associated libraries. These allow you to design sleek, stylish user interfaces very quickly and with very little code. The timing dependent tasks are handled by the firmware, so integrating the display into existing projects is also a snap. Some of the key functionality provided by the libraries include the ability to draw basic shapes and text, draw images stored on microSD with binary transparency, draw buttons and easily check if they have been pressed, and check the status and location of the user's two fingers. The libraries are supported in Arduino IDE and Xilinx SDK, and have been tested with Ardiuno, chipKIT, and Arty host boards.
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's new PIC32 32-bit MCU Families With Ethernet, CAN, USB and 128 KB RAM Extend Portfolio via High-Performance Connectivity. For more info visit www.microchip.com/PIC32.
Some recycled parts to make a row of LEDs to plug into the AVR's I/O port. A ten-LED array, some protoyping board, a 16-pin right-angle header and eight 330Ω resistors. I got the LED array out of a scrap telephone control panel, and the resistors were from FreeCycle.
Microchip’s PIC® microcontrollers with nanoWatt XLP eXtreme Low Power Technology received a “Leading Product Award” in the Microprocessor and DSP category, from the 2009 EDN China Innovation Awards.
A sound generator (algorithmic music) based on an ATTINY 85.
Features:
- 2-axis analog joystick with switch: X-axis and Y-axis for the variables of the algorithms and switch for cycling algorithms.
- Volume pot.
- Sound output: mono 6.35mm plug.
- Yellow LED: sound LED.
- Red LED: ON/BATT
- Power supply: DC 9V external power supply or battery.
- Powered only when output sound jack inserted.
A sound generator (algorithmic music) based on an ATTINY 85.
Features:
- ALGO rotary encoder (with click): choice of algorithm.
- X, Y pots: variables of the algorithms.
- LDR: Light-Dependent Resistor
- Switch: choice between Y and LDR.
- Volume pot.
- Sound output: mono 6.35mm plug.
- Green LED: ON/BATT
- Power supply: DC 9V external power supply or battery.
- Powered only when output sound jack inserted.
The chipKIT™ Pro MX4 is a microcontroller development board based on the Microchip® PIC32MX460F512L, a member of the 32-bit PIC32 microcontroller family. It is compatible with Digilent's line of Pmods, and is suitable for use with the Microchip MPLAB® IDE tools. The chipKIT Pro MX4 is also compatible for use with the chipKIT MPIDE development environment.
The chipKIT Pro MX4 provides 74 I/O pins that support a number of peripheral functions, such as USB controller, UART, SPI, and I2C ports as well as five pulse-width modulated outputs and five external interrupt inputs. Fifteen of the I/O pins can be used as analog inputs in addition to their use as digital inputs and outputs.
store.digilentinc.com/chipkit-pro-mx4-embedded-systems-tr...
Die shot of an 8-bit microcomputer (basically a microcontroller) from a sewing machine. Most of the program data was stored on a separate chip. The long two blocks at the right are rom too, but there’s only 8kb worth on the die.
datasheet: www.alldatasheet.com/datasheet-pdf/pdf/119045/NEC/UPD7831...
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The six-member PIC18F46J11 and the six-member PIC18F46J50 8-bit MCU families feature typical sleep currents of less than 20 nA. The general-purpose PIC18F46J11 MCUs provide up to 64 KB of Flash program memory and the peripheral set of a typical 64- or 80-pin device in only 28- or 44-pins; while the PIC18F46J50 devices add integrated Full-Speed USB 2.0 to enable connectivity for embedded applications requiring remote field upgrades or the downloading of data. For more information, please visit: www.microchip.com/XLP