Wiki Pages

running-lights

LED Running lights CD4017

This Demo shows LM555 running a CD4017 Counter to drive Ten Leds sequentially. Red Button Powers LED Running Lights, 555 Clock is counted by CD4017. Adjust R2, See ToolTips. This is a demo of...

dual-differential-amp

Dual Differential Amp – Op-Amp Designs

The Input Impedance of this module is very high and is symmetric. This circuit can be used for strain gauges and for four wire measurements. If inputs are in mV use OP07. The merit...

buffer-opamp-simulation-dapj

Buffer Unity Gain Amp – Op-Amp Designs

If output impedance of a point is a high value then connecting another circuit at that point will load it, resulting in malfunction or error. Buffers are used as interface between circuits. Low impedance...

555-astable

Astable Multivibrator with 555

This is a demo of the popular 555 timer. you can try out the project on this page by a javascript simulation. Press the Red button below to turn on the circuit press it...

Instrumentation Amp – Op-Amp Designs

This is the best Instrumentation OpAmp, Great CMRR, ensure supply has no ripple and keep analog and digital grounds separate. Ri can be replaced with a trimpot and resistor to alter gain. Connect a...

alarm-clock

Digital Alarm Clock

Description of Gadget – This can be used to preset Five Alarms with a small text memo, The Alarm will remind after set time elapses with musical sounds. It also shows the Time and...

digital-timer-2

Gadgets as Visual Interface for Process Control

Here is is gadget GUI for Industrial Process control, WebApps. The buttons make a sound and Light up internal LED lamps. Power On-Off control, Digital Timer; Start, Reset Scroll and Select are the controls.

Virtual Oscilloscope – Visualize Equations

This is a Toy Scope or a waveform display which i will integrate with my other tutors to display AC points in place of voltmeters. Image above is the Screenshot. Presently you can play...

Jot Note and Desktop

The Gadget Jot-a-Note which was has been modified for Cookies Data Storage. Now it has Sticky Notes, Clock and Calculator. – 2010. Jot-A-Note also supports HTML inside notes. That means you can have Simple...

Electronic Toss Tristate

Running LED, Random Results, Decade Counter and Clock. Weigh the Pros-n-Cons, Take a Balanced Decision with the Blue Toss Widget. Screenshot above This can be built with one 555 timer and a CD4017. Use...

pin-notes

Pin Note Web Gadget

This is a Tiny memo Pad that will have Sticky Notes on Webpage, saves in cookies. This Web Gadget was for the Homepage, Web-page or blog. Pin Notes. Note – This is toy or...

digital-seven-segment-clock

Digital Seven Segment Clock Gadget

This widget is to Inspire you or remind you of the traditional Digital Seven (7) Segment Clock. The javascript is as close as possible to a c program that you could write for a...