Tutorial

DIY MEADE 505 Telescope Communications Cable
DIY Meade 505 Telescope to PC Cable
DIY Electronics
Most of my readers here will be surprised to learn that I am an avid amateur astronomer. I spend every chance I get under the stars taking in the amazing views that can be seen from my 10" Meade LXD-55 Schmidt Newtonian. With my background in photography, it should come as no surprise that I have shifted more into a...
Reading Liquid Flow Rate with an Arduino.
Reading Liquid Flow Rate with an Arduino.
DIY Electronics Arduino
Tutorial Type: Arduino Tutorial Difficulty Difficulty Level 2 Parts Required Arduino Water Flow Meter 10k Resistor Breadboard Jumper Wires Tools Required This i
Reading PC Fan RPM with an Arduino
Reading PC Fan RPM with an Arduino
DIY Electronics Arduino
Today we are going to learn how to read the RPM of a PC Fan. This also works well for the Water Pumps used in PC Water Cooling as well as any dc pump or fan that has a rotation sense wire. This is accomplished by counting the falling edge of the square wave generated by the Hall effect sensor that is located inside ...
Nine-component theremin assembled on a breadboard
Tutorial: Cheap 9 Component Theremin
DIY Electronics
Build a light-sensitive pocket theremin from two 555 timer ICs, two photocells, and only a handful of other components.
Make your own soldering flux.
Make your own soldering flux.
DIY Electronics
The use of flux when soldering electronics is one of the fundamental skills that everyone who thinks of picking up a hot soldering iron should have. A lot of times, those new to soldering think that the application of flux is not a necessary component of the soldering process. Judging by the emails I get, this is ma...
Tutorial: Burning the Sanguino Bootloader to the ATmega 644P Using an Arduino as ISP.
Tutorial: Burning the Sanguino Bootloader to the ATmega 644P Using an Arduino as ISP.
DIY Electronics Arduino
So you just finished soldering up your Sanguinololu 1.3A board and are ready to test it to see if everything is working properly, but before you can upload any firm ware to the board you need to burn a Bootloader to the ATmega 644P. In this tutorial I will cover using an Arduino or Arduino clone as your ISP programm...