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This is the replacement hardware. The core is a PIC18f4550 controlling everything with a 20Mhz oscillator to supply the PLL for the 48Mhz required to run USB should i ever get round to implementing that. The CPU runs at 8Mhz from the internal osc. There is a MAX232 to drive the serial port and some transistors to switch relays for the spindle and that is about it. the 9 pin plug floating there is just to allow me to debug the board when it is not in the machine. The screw terminals will be for the motor and the spindle encoder but the encoder is not implemented in code yet so I haven't connected it. Some fly back diodes for the relays, caps for the MAX232 charge pumps, transistor base resistors, LEDs for debugging, ICSP plug and some wire make up what is left. Not really all that much there. I will probably add another transistor and 2 resistors and a cap to this to amplify the PWM signal since the PIC gives out 5Vpk-pk and the PWM in the control box needs 0-10V in. (I know its a bit silly generating an analogue voltage from a PWM output only to use it to control another PWM drive but this way it is a direct board swap.)
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...
Microchip's eight-member PIC24FJ256DA microcontroller family integrates three graphics acceleration units and a display controller, along with 96 Kbytes of RAM. This integration reduces system costs and makes it practical to add advanced graphics displays for a wide range of embedded applications, by eliminating the need for external RAM and a display controller. Additional savings are achieved through the integrated peripherals for USB and capacitive touch sensing. To enable quick time to market, Microchip’s Graphics Display Design Center provides a host of resources for application designers, such as the free and easy-to-use Graphics Library and Visual Design Tool, see: www.microchip.com/get/89VU
This is a breakout board for the Nordic Semiconductor nRF24LU1+ 2.4GHz transciever with 8051 USB microcontroller core. More information at my blog: www.qwertyboydesign.wordpress.com
This is a breakout board for the Nordic Semiconductor nRF24LU1+ 2.4GHz transciever with 8051 USB microcontroller core. More information at my blog: www.qwertyboydesign.wordpress.com
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
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
Just got myself a new Arduino UNO. It took me just a few minutes to install the software and load an example program to test the board. Because its based on the C language and im familiar with that its very easy to write code for it. Look forward to using it in a project soon...
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.
High school students study arduino microcontrollers during the Design It. Build It. Summer Engineering Workshop at Dartmouth.
Photo by Alex Arcone.
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.
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
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.)
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.
The MC13224 from Freescale is a ZigBee System-On-Package device. The three dies pictured are the microcontroller, radio, and flash memory.
"Electron Wrangling for Beginners" class at Machine Project gallery in Echo Park.--
More stuff by jbum:
Pixel VGA, version 1 (Floor Cluster) - Garnet Hertz
Two dozen old computer monitors occupy the center of a gallery floor in a cluster facing the wall. Each screen is controlled with custom electronics to create pulsating and strobing patterns, casting a colored wash across the darkened gallery.
Dimensions: Variable (approx 3m x 3m). VGA monitors, custom electronics. 2011.
More project information: conceptlab.com/pixel/
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.
Building a simple and easy microcontroller based robot is always a fascinating topic to be discussed, especially for the robotics newbie enthusiast. On this tutorial I will show you how to build your own microcontroller based robot which known as a photovore or you could call it as the light chaser robot using the simplest possible circuit for the microcontroller based robot brain, locomotion motor and the sensor. For more information visit www.ermicro.com/blog/?p=1549
Complete with "vanilla" LCD Panel
An impulse purchase, and the physical design means it isn't that convenient to use, but interesting nevertheless ...
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