Tuesday, September 19, 2017

The Electronics Index of J. B. Calvert

Many may already know about these EE Educational pages with Circuits of J. B. Calvert.  These pages are valuable as they are like a summation of Important and Practical Sections in many EE Subjects. If you want to master the basics of EE, these pages will propel you in the right direction.

A Welath of Information is at the site - Dr James B. Calvert Associate Professor Emeritus of Engineering, University of Denver and Registered Professional Engineer, State of Colorado. An EE-Encyclopedia Almost.

Engineering and Technology - James B. Calvert
"An extensive series of pages based on experiments that can be done in the personal or home laboratory. The emphasis is on enjoyment and intellectual pleasure, but there is much practical matter as well."

Electronics Index - Includes vacuum tubes and cathode-ray tubes, with many experiments for the home laboratory. Nixie clocks too.

The Electronics Index of J. B. Calvert

The Atmel AVR microprocessors are very similar functionally to the PIC microprocessors, with the same range in size from 8-bit, 8-pin PDIP to 32-bit processors with 100 pins, and similar features.
Atmel AVR 8-Bit Microcontrollers


The ATtiny13A will operate from a supply voltage as low as 1.8V (maximum clock speed 4 Mhz), and with a full 20 MHz clock speed at 4.5V and above. The current drain is much reduced at the lower supply voltages and clock frequencies.

A Magnetometer
It is easy to measure moderate magnetic fields using a Hall sensor, such as the Allegro A1302 linear Hall sensor, available from Jameco. A PIC12F675 can digitize the output of the sensor and display it on a serial LCD display, such as the Newhaven NHD-0216K3Z-FL-GBW 2 line x 16 digit display. This system is shown breadboarded in the figure at the right, measuring the field between the poles of a horseshoe magnet.

Monday, September 18, 2017

KTechLab - Open Source IDE

KTechLab project. KTechLab is a an IDE for microcontrollers and electronics. It supports circuit simulation, program development for microcontrollers and simulating the programmed microcontroller together with its application circuit. Ktechlab was developed by David Saxton.

KTechLab - Open Source IDE

KTechLab - Open Source IDE

Integrated Design Environment (IDE) for electronic and PIC microcontroller circuit design and simulation. Featuring an extensive circuit designer with autorouting and simulation of many common electronic components and logic elements, KTechLab is the idea tool for educational or hobbyist use. You can simulate analog circuits and logical circuits using KTechLab.

You can write programs using Assembly, C (SDCC), or Flow Code - program the microcontroller(PIC) using flowchart. Another option is Microbe a programming language like BASIC.

KTechLab supports a wide range of Open Source PIC programmers, enabling finalised PIC programs to be quickly and easily transfered to a real PIC microcontroller.

Tuesday, September 12, 2017

Kenneth Wyatt - EMC design and training services

A consulting firm that specializes in EMC design, troubleshooting and training services to commercial and industrial manufacturers with global distribution in the consumer, computer, network & telecommunications, industrial and scientific industries.

Kenneth Wyatt -  EMC design and training services

Kenneth Wyatt -  EMC design and training services

DIY 6 GHz comb generator by Kenneth Wyatt

Most simple DIY comb generators seem to run out of steam about 1 GHz. I recently ran into David Bowman’s 2.4 GHz circuit and measured an upper usable range of about 6 GHz. While greatly attenuated above 3 GHz, this circuit should still be valuable for measuring semi-anechoic chambers in the GHz ranges.

Wyatt Technical Services, LLC
56 Aspen Dr. Woodland Park, CO 80863, USA

Monday, September 11, 2017

The Control of engineering systems

Lab Experiments using A/D and D/A cards. PC Interface. Using Matlab, Learning PID control. DC Motor control. Hovercraft project with PWM and Fans as Actuator of control system, Uses NIDAQ Interface.

The Control of engineering systems

PID Controller Design - "We used a 3-stage fuzzy logic PID to control our system. The kp, ki and kd values were changed depending on the current status of the error signal. For error values above a certain percentage of the desired output (in our case it was 30%) we used a large kp constant to drive the system as hard initially to get up towards the desired final value as quickly as possible...."

The Control of engineering systems

"We used a 3-stage fuzzy logic PID to control our system. The kp, ki and kd values were changed depending on the current status of the error signal. For error values above a certain percentage of the desired output (in our case it was 30%) we used a large kp constant to drive the system as hard initially to get up towards the desired final value as quickly as possible.  This results in saturation of the amplifier."

Position on a DC Servo Motor

From - SCCS - Swarthmore College Computer Society

delabs pages on control systems - Industrial Process Control Circuits

Friday, August 25, 2017

Electronic Design - Magazine

Electronic Design provides leading-edge technical information to electronics engineers and engineering managers around the world; individuals responsible for the design and development of electronic original equipment manufacturers' products and systems.

Electronic Design - Magazine

Electronic Design keeps its readers abreast of rapid technological advances and their applications at the chip, board and systems levels.

Electronic Design - Magazine -  Bob Pease

Analog & Mixed Signal - Here you will find new articles of Bob Pease too.

See The Best of Bob Pease at NSC

"Once upon a time I couldn't even spell "Web Freak", and now I am one. But several people agreed, that in response to the popular demand, RAP should put out a "Web Page" with several kinds of useful information on it."

Saturday, August 12, 2017

Silicon Laboratories - High Performance Mixed-signal

Industry leader in the innovation of high-performance, analog-intensive, mixed-signal ICs. Developed by a world-class engineering team with unsurpassed expertise in mixed-signal design,.

Silicon Laboratories - High Performance Mixed-signal

Products Include - 8-bit microcontrollers, Embedded modems, Subscriber line interface circuits, silicon direct access arrangements (DAAs) and clocks and oscillators.
  • Capacitive Touch Sensors
  • Infrared Sensors
  • OTP-EPROM
  • High-Side DC Current Sensor

Silicon Labs offers a combination of hardware and software to assist with the development of wireless-based embedded applications. The Si1000DK provides everything needed to begin development of your wireless MCU application.

Mesh Networking Module from Silicon Labs

Wireless Gecko modules focused on mesh networking applications with support for best-in-class ZigBee and Thread software. Silicon Labs’ new MGM111 module is the first in this comprehensive family of multiprotocol modules based on the Mighty Gecko system-on-chip (SoC) device.

Silicon Labs
400 West Cesar Chavez, Austin, TX 78701 USA

Friday, August 04, 2017

Complete Embedded USB PIC Solution

The Low Pin Count USB Development Kit provides an easy, low-cost way to evaluate the functionality of Microchip PIC16F1459 (or other PIC16F145x) 14 and 20 pin USB microcontrollers.

The platform provides all of the necessary hardware, software, and code examples necessary to quickly bring your next USB design from concept to production.

Low Pin Count USB Development Kit

This is what i would use if i have to make a Quick USB Voltmeter or Ammeter.

Complete Embedded USB PIC Solution

If you want to do such a project, use Opto-Isolation for High-Energy circuits for Safety. The Analog Value from Attenuator, Shunt, Current Transformer is amplified and converted to frequency then thru opto-coupler reaches uC. This protects PC and User.Be very careful in High Voltage and High Current. Use proper transducers and Isolation to Protect man and machine.

PIC18F13K50/14K50 USB Flash nanoWatt uC

PIC Microcontroller with full speed USB 2.0 interface. Ideal device for battery-powered applications.

"The addition of mTouch(TM) touch sensing compatibility, a 10-bit ADC, motor control PWMs, and a host of serial interfaces make the PIC18F14K50 the perfect device to "Just add USB" to any application."