ShiftBright RGB LED Module Saves the Day!

I gave up on trying to drive the A6280 directly with the Arduino. macetech.com already did what I wanted but couldn't do myself. They used the A6281 (which doesn't come in a DIP package- only an SMC) on a nice little breakout board with a RGB LED. Yea! So here's the Module.It worked perfectly and … Continue reading ShiftBright RGB LED Module Saves the Day!

Using a Transistor to Control an LED or anything

For my LCC project I decided to use a 2N4401 NPN transistor to control status LEDs and AC Switches. I did this so that the power draw from the Arduino chip would be as low as possible. Below is a diagram of how this works. I used a 2N4401 NPN transistor that "turns on" when … Continue reading Using a Transistor to Control an LED or anything

TMP36 Analog Temperature Sensor

The TMP36 was my first sensor and is pretty simple. 3 pins, 1 analog port. Available from SparkFun. It's a low voltage temperature sensor. It provides a voltage output that is linearly proportional to the Celsius temperature. It also doesn't require any external calibration to provide a typical accuracy of ±1°C at +25°C and ±2°C over the … Continue reading TMP36 Analog Temperature Sensor