Hobby Projects - Insulation tester, LED Circuits, Meters.

Monday, July 13, 2015

NE555 Applications and Specifications

Probably the very first Datasheet and Application Note of 555 the e-lego.

Signetics made the 555, This is one IC that is like a E-LEGO, this along with Op-Amps and other components can make many interesting projects. On some pins like Control Voltage it responds to analog signals and on Reset and Output the signals are Digital like. The 7555 a CMOS version consumes lower power and oscillates at higher frequencies.

NE555 Applications and Specifications

555 trigger voltage cartoon

This evergreen or perennial chip is the favorite among students and hobbyists who want to learn electronics. Here is an original datasheet from Signetics i found online, it has very nice illustrations which will act as an appetizer for learning this science.

I want students to look into these specs pages as it will make your study more invigorating.

Specifications Tutorial with Cartoons

Saturday, July 11, 2015

Electronics Concepts at HyperPhysics

HyperPhysics is an exploration environment for concepts in physics which employs concept maps and other linking strategies to facilitate smooth navigation. For the most part, it is laid out in small segments or "cards", true to its original development in HyperCard. The entire environment is interconnected with thousands of links, reminiscent of a neural network..

Electronics Concepts at HyperPhysics

Students should go thru this website from cover-to-cover, It is a work of knowledge that is priceless - ananth

Ampere Law at HyperPhysics

Ampere's Law at HyperPhysics

"Ampere's Law states that for any closed loop path, the sum of the length elements times the magnetic field in the direction of the length element is equal to the permeability times the electric current enclosed in the loop."

Saturday, July 04, 2015

Fly Electric-- Radio Controlled Model Aircraft

This site is for flyers of Radio Controlled model aircraft wanting to find out about successful Electric powered RC modelling.

Fly Electric-- Radio Controlled Model Aircraft

"On this site I showcase big electric planes, have loads of free plans for smaller ones, cover many interesting contruction topics and provide circuit diagrams and advice for lithium batteries."  - David Theunissen

PIC and AVR Projects  - Designing PIC microcontroller-based devices to monitor lithium voltages. Individual cell low voltage cutoff, lithium tester and servo controller circuits. Simple data logging. Tutorials to help beginners to get started.

Brushless Free-Flight Timer

Brushless Free-Flight Timer - The page describes how to convert a cheap commercial speed controller into a light, easy to use, brushless free flight timer. It is also a good introduction to brushless ESC's and you could even build your own.