EveryCircuit
Contact
Reviews
Home
78y4
modified 2 years ago

Childs Busybox - Color Mixing and Switch Types with auto off timer

3
0
151
01:52:29
Schematic for a kid's busy box meant to illustrate the combinations of primary colors. Aqua LED next to SPDT indicates the circuit in use (A or B) and represents real-world white. Blended colors are lit using NPN transistors as a logical AND. Each switch can have a different tactile feel (e.g. rocker, post, knob, push button, pull chain, slide, etc.) and switching function (e.g. toggle, momentary, position). Momentary switches can be either normally closed or open. A potentiometer was added to a single LED for dimming. The timer circuit between the 9V battery and ground is initiated by the "Go" push button and will fade out after about 10-15 seconds until the capacitor is discharged (depending on capacitor and resistor values used). There is also a "Stop" button which will drain the capacitor immediately. (NOTE: LED and resistor values updated after a test build. Previous values prevented transistors from reaching the cut-off threshold, resulting in multiple LEDs shining when a single switch was used.)
published 2 years ago

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in Chrome browser and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.

Copyright © 2018 by MuseMaze, Inc.     Terms of use     Privacy policy