With Instructables you can share what you make with the world and tap into an ever-growing community of creative experts.
share step-by-step photos with text instructions
share one or more photos in one step quickly and easily
share your how-to video
Imagine a paperweight that not only holds piles of paper in place, but perpetually blinks !
A solar cell, supercapacitor, and a new ultra low power 555 chip make it possible !
The heart of this novelty is the CSS555 timer integrated circuit. It is a micropower version of the venerable 555 and 7555 chips that the electronics ...
The basic circuit used here is the standard 555 astable setup. At the start of an ongoing cycle, the timing capacitor CT starts charging up through r...
The diagram shows how the voltage cycles at the output pin and the timing capacitor. After the initial energizing of the circuit, steady state operat...
The values of the components used in the original paperweight circuit are: RA = 10M RB = 47K CT = 0.22uF RL = 47 CS = 1.0F These values give a perio...
A Google search will reveal a host of suppliers of phenolic stripboard. The CSS555 Timer IC is available from Jameco . Be sure to find a supercapaci...
Once the electronic components have been gathered, breadboard them together to make sure everything will work to your satisfaction. It is not a pleas...
The solar cell to use should be the thin film on glass type because these have good voltage under indirect or ordinary room lighting - even fluorescen...
Tag files as:
Posted:Jun 21, 2012
555 Timer LED Flasher
The Versatile 555 Timer
Create a flashing lights circuit with a 555 timer and a relay
Know Your IC: 555 Timers
Build a Tone Generator--Improve Your Snap Circuits by Adding a 555 Timer IC
learn about the 555
Build an Optical Theremin--Improve Your Snap Circuits by Adding a 555 Timer Integrated …
Solar School Bus
555 Mind Mangler
Download our new apps for iOS and android!
PDF DownloadsAs a Pro member, you will gain access to download any Instructable in the PDF format.
You also have the ability to customize your PDF download.