Welcome to Andrew Clarkson's Websites

555 Timer Circuits

This website allows you to obtain component values or time periods for circuits using the 555 timer IC.

There is also a selection of projects that can be built with a description of how they work.

Satellite Finder

This website allows you to obtain azimuth, elevation and skew angles for any geostationary satellite, for anywhere in the world.

Photography Calculator

This website allows you to obtain Depth of Field and Hyperfocal Distance information for various cameras and lenses.

My websites are best viewed on a PC or MAC with a screen resolution of at least 1366x768.
Click on the switch below to enable Dark Mode.

Dark Mode

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