An LED or Light Emitting Diode is a low power semiconductor light source used in lots of electronic devices. LEDs are closeley related to transistors and regular diodes.
Electronics
GLCD Screen Displaying Live Arduino Analogs
I used a ST7565 GLCD (Graphic Liquid Cristal Display) screen to display the live analog readings from an Arduino. Here …
Dawn to Dusk Chicken Door Project
There are many advantages of having an automatic chicken coop door. The door will automatically close at night when the …
Unboxing the LM3S811 Evaluation Kit
Here I show what’s included and how to work the LM3s811 kit from Texas Instruments. You can acquire this kit …
DIY RFID Keyless Entry System
A few years ago I built a keyless entry system for my shop using a keypad, now it is time …
Arduino Electronic Speed Control ESC 2 of 2
Here is my second ESC or Electronic Speed Control that I built with an Arduino Duemilanove. You can’t just hook …
Arduino Electronic Speed Control ESC 1 of 2
Here is my first ESC or Electronic Speed Control that I built with an Arduino Duemilanove. If you don’t already …
What is a diode?
A diode is a semiconductor that only allows current to flow in one direction, it is a one way valve …
What is a Resistor?
A Resistor “resists” current flow. Think of it as a restriction or a water valve that is stuck in a …
DIY Sound Localization Sensor
I searched for days trying to find a commercial sound localization sensor or info on how to build one. Sound …