View allAll Photos Tagged microcontrollers
I woke up this morning to a flood of emails regarding the radio restoration project! The project was featured on the Hack A Day website! Woo hooo! I hope other radio restoration nuts will get some good out of it! :-)
hackaday.com/2013/05/02/am-tube-radio-restored-and-given-...
I designed and built an Arduino based shutter speed tester today.
I tested the Leica R4s, Leica M3, Rolleiflex 3.5A (recently CLA'ed) and a sad Rolleicord V.
As expected, the R4s came out best, typically 1 or 2% out from my predicted value. The Recently CLA'ed Rolleiflex was typically 15% too slow.
The M3 and the Rolleicord were way out.
Computer controlled shutter for the Automatic 100 series packfilm cameras with manual exposure control. See www.chemie.unibas.ch/~holder/shutterpic/index.html
Microchip announced the new PIC32 Bluetooth® Audio Development Kit. The full-featured kit enables custom application development on the PIC32 microcontrollers (MCUs) for Bluetooth and USB digital audio solutions. The PIC32 Bluetooth Audio Development Kit that ships with audio streaming demo code delivers up to 24-bit, 192 kHz audio and has been tested with over 100 different Bluetooth audio enabled devices, spanning 18 different manufacturers. The Bluetooth Hardware module and the Bluetooth A2DP audio software have been Bluetooth.org certified, saving the developer significant certification costs. The modular design allows developers to swap out the included daughter boards (one for Audio and one for Bluetooth), to create their own custom versions with their preferred audio and wireless solution. The kit also supports USB Host and Device connectivity, Apple® device authentication module interface, a 2-inch color LCD, five general-purpose button switches, 5 LEDs For more info, visit: www.microchip.com/get/1FL9
Wendy and I are making a effort to get our mornings back. After
planting fruits and vegetables all over our yard we realized we were
giving up a hour every other day to water our crops. We started to
look at commercial irrigation systems, but they are incredibly lame.
They cost hundreds of dollars for what is basically a few solenoid
valves and a $3 microcontroller. I said forget that. We can roll our
own that is much smarter! Tonight I did some conductivity tests and
found that I can use the analog digital converter on my own $3
microcontroller and measure how wet the ground is. This means our
water system will not be based on timers. It will just water the
trees and plants when it gets a dry reading from the soil. In other
words you will not see our drip system flooding the yard during a
rain storm.
A fairly quick grab shot of one on my new microcontroller development boards.
Lit using an ETTL 580ex2 fired through a sheet of paper to the right. The background is a CD carry case that looked suitably technical and geeky.
My synthesizers.com modular synth, with assorted tabletop modules and DIY kits and parts.
The Arduino microcontroller is programmed to generate control signals!
This was intel's first 8-bit microcontroller, introduced in 1976. In addition to the microprocessor, this chip featured about 1K of EPROM memory - memory that could be set at the factory and remained permanent. If necessary, the developers could erase it by exposure to UV light then re-use it. For this purpose, the package incorporates a crystal lens over the chip, making the whole affair visible to the camera.
This macro photo was taken by holding an 18-55 zoom lens backward in front of the camera body. It was difficult to get good focus but I think this shot actually resolves some of the traces and memory cells.
It's an analog X-Y plotter, modified into a little PlotBot with the help of an AVR microcontroller.
Read more about this project here.
JCNC - CNC G-Code Viewer and GRBL PC Terminal Software www.jtronics.de/software/jcnc-cnc-steuerung.html
My first look at the circuitry of the YN-460 flash.
This is the microcontroller board and keypad.
the main chip is a Silicon Laboratories C8051F310 uProccessor
www.silabs.com/Support%20Documents/TechnicalDocs/C8051F31...
seems very overpowered for use in a flash but that means it has potential for hacking (anyone fancy adding iTTL?)
Unfortunatly it's not one of the micro's i'm familiar with programming, why couldn't they have used an AVR :-(
BTW thanks TC. for being the first to risk it!
PS see this discussion for more info
All finished! Hook the servo up to your microcontroller and give it a test.
When told to go to position 0 (1500µs), it should stop. Less than 1500µs, it should move backwards, and more than 1500µs will move it forwards.
If you find your potentiometer has slipped, test different centre positions until it's completely stopped - you should find it will be stopped at three different microsecond times. Use the central one. Then, the servo will generally go full backwards at centre-200 and full forwards at centre+200.
Attach wheels and have fun!
3 drops into cold water. Colours are from blue ink in the water bowl and red in the drop reservoir.
Settings:
Exposure - 1/200sec
F-stop - f/18
ISO speed - 100
Speedlite - 1/64
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H-21, M-Bulb, D1-60, P1-70, D2-80, FL-306
Power MOSFETs
by Gerard Fonte
Part 1 will cover the theory behind these useful devices that have a lot of overlooked features. Page 50
A Touch of Spice Part 2
by Peter Stonard
This month, make discoveries about IC circuits that are well-known and learn more about the concepts of sub-circuits and macromodels. Page 54
How To: Surface Mount Soldering
by Robert Doerr
Get over your fear of working with these tiny components. Page 60
Projects
Instrumentation for Model Rocketry
Microcontroller/PIC
by Mike Bessant
Incorporate additional instrumentation to a flight recorder to measure a rocket's rate of roll, relative altitude, and booster-stage separation detection. Page 34
16x16 Tri-Colored LED Matrix - Real Time Clock for the Parallax SX52
Electronic Gadgets
by Timothy Gilmore
This project allows the user to create thier own scrolling display to show the time (or other messages) in multiple colors. Page 40
The Proto Buddy
Circuits
by Jim Stewart
Take proto circuit building to the next level with this device that allows you to expand your existing board so you can create all kinds of circuits. Page 44
Columns
Techknowledgey
by Jeff Eckert
TechKnowledgey 2009
Reconnecting Brain Cells, Another Leap Toward The Sun?, New Unified Storage Appliance, Rugged Military Computer Introduced, and more. Page 12
Robotics Resources
by Vern Graner
Robo Resolution 2009
My New Year's resolution is 1650x1280. Page 15
Stamp Applications
by Jon Williams
Control from the Couch - Redux
With the SX and SX/B I think it's time to revisit SIRCs decoding and even couple it with serial I/O so that we can enable dual-mode control (IR plus serial) or have the ability to use our project as an IR-to-serial translator. Page 18
Q&A
by Russell Kincaid
Questions & Answers
High impedance preamp, audio to LED display driver, FM shutdown problem, and more. Page 26
Getting Started With PICS
by Chuck Hellebuyck
I2C Communication
It's a new year and, unfortunately, economic times are looking quite dismal. Page 68
The Design Cycle
by Fred Eady
Chatting Up A Thumbdrive
Using the CDIP2 API coupled with the VDIP2 hardware interface we've designed and built, you should have no problems including USB Flash drives in your Design Cycle. Page 72
Smiley’s Workshop
by Joe Pardue
Smileys Workshop: An AVR C Programming Series (Part 6)
In this month's workshop, after learning more about c syntax for decision making, we are going to write a menu navigation system similar in concept to the one on your cell phone, but for the Butterfly using its LCD and joystick. Page 80
Departments
Developing Perspectives
by Bryan Bergeron
Please visit our Developing Perspectives blog to read the full article and comment. Page 8
New Products
in New Products
The Desktop Companion II Page 31
Detail of a single chip calculator IC from 1971, arguably one of the first microprocessors or microcontrollers having a RISC instruction set in ROM and with RAM. This complex IC was drawn by hand on Mylar film and photo-reduced 400X. Calculators became the largest market for ICs by the mid 1970s.
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
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
This year I gave my sweetheart a LED valentines day card. The LEDs were animated with a pulse harmonic tuned to my own heartbeat. (sappy, yeah I know, but she makes me feel sappy)
Bill of materials:
1 AVR ATTiny45 microcontroller
2 STP08DP05TTR 8-bit contsant current shift registers
16 red LED's (0805 package)
Pyralux flexible circuit board material
On May 16, 2013, Microchip announced the shipment of its 12 billionth PIC® microcontroller (MCU) to the Nidec Corporation—a preeminent global supplier of precision motors, based in Japan. Microchip delivered this 12 billionth MCU approximately 10 months after delivering its 11 billionth. In this photo, Mr. Hitoshi Tatsuno, Vice President of Operation Management Dept. & Purchasing Dept., Nidec Corporation, receives the 12 billionth PIC Microcontroller trophy from Joe Krawczyk, Vice President, Sales, Asia Pacific, Microchip Technology Inc. For more info, visit www.microchip.com/PIC.
This is to connect a microcontroller and an audio device via BT. Credits are going Frank Zhao for his design of BT headphones.
JCNC - CNC G-Code Viewer and GRBL PC Terminal Software www.jtronics.de/software/jcnc-cnc-steuerung.html