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This is the microphone preamp for my simple circuit to display music on a VGA monitor like on an oscilloscope.
It is worth to note that this is not mounted on a PCB, rather I glued some red paper on the perfboard then opened the holes necessary with a needle.
For more details go to :
Dorkbot Bristol, December 2008: Richard's Arduino controlling a pair of micro servos (intended for radio-controlled aircraft) as a walking robot. It's simply two servos linked together with cable ties, plus some bent wire for legs. The program in the Arduino sends pulses to the servos that make them walk.
Exploring micro-controllers with the Arduino NG development system. Seen here running in standalone mode with a 9v battery. Arduino makes embedded programming fun and easy by bringing together a clean and simple hardware and software development environment.
Here, I'm messing with reading analog input from a 10k potentiometer and PWM (pulse width modulation) of leds to produce variable brightness.
Link to my RFID tagged blog entries, with video of the setup above in action: stevenandsarah.com/category/rfid/
www.arduino.cc/ - "Arduino is an open-source physical computing platform based on a simple i/o board, and a development environment for writing Arduino software. The Arduino programming language is an implementation of Wiring, itself built on Processing."
JCNC 1v01 - CNC G-Code Viewer and GRBL PC Terminal Software www.jtronics.de/software/jcnc-cnc-steuerung.html
Sanguino is an open source Arduino-compatible microcontroller board that is based on the Arduino, and inspired by the Boarduino form-factor. It uses the atmega644P chip which has 4x the memory, ram and 12 more GPIO pins than the Arduino's atmega168.
More info: make.sanguino.cc/1.0
Microchip announced a new family of PIC32MX3/4 microcontrollers (MCUs) in 64/16 KB, 256/64 KB and 512/128 KB Flash/Ram configurations. These new MCUs are coupled with comprehensive software and tools from Microchip for designs in connectivity, graphics, digital audio and general-purpose embedded control. The MCUs are an expansion to the popular PIC32MX3/4 series of high-performance 32-bit microcontrollers. They offer higher RAM memory options and higher integration of peripherals at a lower cost. The PIC32MX3/4 feature 28 x 10-bit ADCs and 5 UARTS, 105 DMIPS performance, serial peripherals, graphic-display, capacitive-touch, connectivity and digital audio support. For more info, visit: www.microchip.com/get/EPAQ
JCNC - CNC G-Code Viewer and GRBL PC Terminal Software www.jtronics.de/software/jcnc-cnc-steuerung.html
Two 1960s-era moving-coil meters, with one of them rigged up to a DAC (digital-to-analog converter) on the Arduino. The meter movement was rated at 1.4mA, full-scale. I'm using a 2.2kΩ resistor to produce that current from the 4.096V output of the DAC.
Electronic Pornography - The "business side" of my Peak Electronics ESR60 Capacitor Analyser
People who are clever at programming microcontrollers - in this case a PIC can really make them sing and dance and jump through hoops.
This instrument is a very good example of that skill (or is it art?!)
I'm also becoming increasingly impressed with the little Canon Powershot SX260 camera I used to take this picture.
Hand held macro zoom built-in flash cropped in Paintshop Pro 5 -simples!
The manufacturer has recently (Jan 2014) upgraded the firmware and probe set at a very reasonable cost. One little gripe I had with the operating convenience of this unit was that sometimes three hands were required - two to hold the test leads onto the component, and a third to operate the "test" button. This has been addressed with the later version of the firmware. The company also turned the unit around extremely quickly, and were an absolute pleasure to deal with.
This is the schematic (part 1, microprocessor ) of my simple circuit to display music on a VGA monitor like on an oscilloscope.
For more details go to :
FPGAs at the Command Line
by Bob Smith
The problem with using Field Programmable Gate Arrays is that you have to learn a design language and then set up a fairly complex development environment to write programs in. That problem is addressed here. Page 49
Power MOSFETs Part 2
by Gerard Fonte
This time, we'll build two projects. The first is a transformerless voltage doubler that takes a DC voltage from 12 to 30 volts and doubles it. Unlike most other voltage doubler circuits, this design can supply amps of current. The second project uses a power MOSFET in a linear (rather than switching) application. Page 54
A Touch of Spice Part 3
by Peter Stonard
In this final part, take a look at oscillator circuits that create their own signal during simulation. Page 60
How To: A Guide to Soldering
by James Antonakos
Never soldered before? Now you can learn how! Page 64
Projects
Garage Access Goes Digital
Digital Electronics
by Jay Carter
Keypad access is a great convenience and with this unit you can trigger activiation of up to two Page 36
High Resolution Time-Lapse Movies Using a Still Camera
Digital Electronics
by Balakumar Balasubramaniam
CamTim is a digital hack to convert your camera into a high-res time-lapse camcorder. Page 41
Makin’ MIDI with mistrIXG
Computer Related
by Steve Russell
mistaIXG is a USB connected, PIC-basd synthesizer that will help you turn your computer into a music machine. Page 44
Columns
Techknowledgey
by Jeff Eckert
TechKnowledgey 2009
DNA analysis, owning a Cray, Navaztags explained, plus more. Page 12
PICAXE Primer
by Ron Hackett
Implementing a serial data link with the IR multi-board
This month, we're going to resolve the problem of the missing keypresses that we had last time with our SIRC system and then move on to accomplishing our final goal for the IR Multi-Board: Page 16
Open Communication
by Louis E. Frenzel
Converting To Digital TV
Fun with converter boxes and antennas. Page 24
Q&A
by Russell Kincaid
Q&A
CO2 laser power supply, a cycling circuit, LED replacement of incandescent bulbs, more. Page 27
The Design Cycle
by Fred Eady
A Reasonable Replacement For RS-232
I'm going to include USB interfaces on subsequent Design Cycle projects that require serial communications with a personal computer. Page 68
Smiley’s Workshop
by Joe Pardue
Smileys Workshop: An AVR C Programming Series (Part 7)
Last month, we learned about both of those binary 10 kinds of people. This month, we will apply it to understanding Binary Coded Decimal (BCD) to use in code for a wearable Butterfly Alarm Clock. Page 74
Near Space
by L. Paul Verhage
The Great Plains Super Launch 2008
GPSL - or The Great Plains Super Launch - is the largest annual amateur near space launch, and takes place every summer. This year, Near Space Ventures and CAP'n'Space hosted GPSL in Liberty, MO on August 1-2. Page 78
Personal Robotics
by Vern Graner
Pneumatics In Robotics
Let's dip our toe into some possibly unfamiliar waters as we explore the world of electronically controlled pneumatic actuators for hobby robotic and animatronic mechanisms. Page 81
Departments
Developing Perspectives
by Bryan Bergeron
Please visit our Developing Perspectives blog to read the full article and comment. Page 8
Sometimes we need to extend or add more I/O ports to our microcontroller based project; the question is how fast the response we need for these new I/O ports. Because usually we only have a limited I/O port left than the logical choice is to use the serial data transfer method; which usually only required maximum one to four ports for doing the data transfer.
Currently there is few type of modern embedded system serial data transfer interface widely supported by most of the chip’s manufactures such as I2C (read as I square C), SPI (Serial Peripheral Interface), 1-Wire (One Wire), Controller Area Network (CAN), USB (Universal Serial Bus) and the RS-232 families (RS-423, RS-422 and RS-485).
Microchip's Mobile Product Selector application for iPhone®, iPad® and Android™ smart phones and tablets, as well as a version of its Web site for mobile browsers, are all available today at the following links…
Apple® Application Available at App Store: itunes.apple.com/us/app/microchip-mobile-product-selector...
Android Application Available at Google Play: play.google.com/store/apps/details?id=com.microchip.andri...
Mobile Web Site Available Online: www.microchip.com/mobile
The low-cost, low pin count PIC12LF1552 is Microchip’s smallest (2x3 mm UDFN package) and lowest-cost PIC® MCU with hardware I2C™ support, and includes a four channel 10-bit Analog-to-Digital Converter (ADC) with hardware Capacitive Voltage Divider (CVD) support for capacitive touch sensing. Additionally, this new MCU features 3.5 KB Flash program memory, 256 Bytes RAM, a 32 MHz internal oscillator, low-voltage operation from 1.8V to 3.6V, and low power consumption for active and sleep currents of 50 µA/MHz and 20 nA, respectively. For more info visit, www.microchip.com/get/LFWT
The latest Microchip TCP/IP Stack, downloadable from www.microchip.com/tcpip, includes an SSL module, which enables secure, encrypted communications between two nodes on an unsecured network. It supports both client and server functionality, while providing fast 128-bit ARCFOUR encryption for bulk data transfers.
Microchip's new PIC24FJ128GC010 family of microcontrollers. This family is an analog system on a chip that integrates a full analog signal chain, including Microchip’s first ever on-chip precision 16-bit ADC and 10 Msps 12-bit ADC, plus a DAC and dual operational amplifiers (op amps), along with eXtreme Low Power (XLP) technology for extended battery life in portable medical and industrial applications. For more info, visit: www.microchip.com/get/6T4J
This module indicate bus values and notify value changes by a beep. This device is useful for digital electronic designs and troubleshooting.
Microchip today announced a new series of its low-cost, high pin count 32-bit PIC32 microcontrollers (MCUs). By blending the key features of Microchip’s existing PICM32MX1/2 and PIC32MX5 MCU families, this latest PIC32MX1/2/5 MCU series delivers designers the benefits of a rich peripheral set for a wide range of cost-sensitive applications that require complex code and higher feature integration at a lower cost. With up to 83 DMIPS performance and large, scalable memory options from 512/64 KB Flash/RAM to 64/8 KB Flash/RAM, these new PIC32MX1/2/5 MCUs are ideal for executing the Bluetooth® audio software required for low-cost Bluetooth audio applications, such as speakers, consumer music-player docks, noise-cancelling headsets and clock radios. Flexible, easy-to-use CAN2.0B controllers are also integrated into these MCUs, with DeviceNet™ addressing support and programmable bit rates up to 1 Mbps, along with system RAM for storing up to 1024 messages in 32 buffers. This feature allows designers to easily employ CAN communication schemes for industrial and automotive applications. For more info, visit www.microchip.com/PIC32MX-Page-110314a
Showing how one spacer (8.25mm) has a male thread one end and female the other. the longer (12.5mm) spacer has female M3 threads both ends.
Lightning Screen
by Harry Goldman
For those interested in high voltage phenomena, this device will prove to be an impressive performer.
Properly Selecting Electronic Components: Part 2
by Vaughn D. Martin
This month's tutorial covers capacitors and inductors.
Experiments with Alternative Energy
by John Gavlik
Learn the fundamentals of renewable Energy with this new educational series. This month: Solar Energy.
NixieNeon Clock
Nuts & Volts Special
by Joe Croft
Time for another cool clock design using nixie tubes.
TestMaster Quiz Box
Electronic Gadgets
by John L. Brittan
Run your own game shows at home with this fun build.
Techknowledgey
by Jeff Eckert
TechKnowledgey 2009 | August 2009
Topics covered include lasers with curves, the smallest DC/DC concerter, quantum error suppression, plus other info you won't want to miss.
PICAXE Primer
by Ron Hackett
Programming Your Serialized LCD Display
This month we’re going to turn our attention to some of the details of programming the display. Specifically, we’ll investigate two of the most useful features of LCD displays: scrolling a long line of text across the relatively small width of the display and creating custom characters to enhance the functionality of the display.
Personal Robotics
by Samuel Aaron Ward
Solar Tracker
Phrases such as “going green” and “carbon footprint” have become ubiquitous and even trendy. The United States Green Building Counsel (USGBC) has even developed a green building rating system called LEED by which new buildings are designed to be as energy efficient as possible. Those with the knowledge to innovate technologies for renewable resources might soon find themselves highly sought after!
Q&A
by Russell Kincaid
Q&A | August 2009
Audio comb filter, high current/low voltage amp, time delay circuit, plus more.
The Design Cycle
by Fred Eady
USB To Ethernet Using Microchip’s Free Stacks: Part 1
This month, the mountain man is coming to town as the coders at Microchip have put together a brand new TCP/IP Stack to support the new Ethernet ICs and wireless Ethernet modules that are coming out of the pipe.
Smiley’s Workshop
by Joe Pardue
Smiley’s Workshop: An AVR C Programming Series (Part 13)
More ALP Projects.
Open Communication
by Louis E. Frenzel
How To Achieve One Gigabit Per Second Data Rate Over Wireless
Longer distances, interference, and other environmental issues usually prevent that, but what we get is typically enough. With the new 802.11n standard, Wi-Fi speeds will be going up as more of the access points adopt the multiple input multiple output (MIMO) technology that will make 100+ Mbps common.
Developing Perspectives
by Bryan Bergeron