After mixing up all his resistors by accident - and having the tenacity to re-sort them, Instructables user "robdavinci" decided to create a device that would aid in the calculation of the values by reading the colour bands. The result of this project is a large device which contains four rotating numerical discs, with the numbers and their matching colours printed around the edge. These are fitted inside a tube (that could resemble a large resistor). Then each disc is moved by the user turning a matching dial, and once the colours are selected - the resistor value is known. Review the following video for a demonstration:
If you're wanting to reproduce the project above - you'll need a few of our ATmega328P MCUs with Arduino Uno bootloaders:
This is the same Atmel AVR ATmega328P microcontroller used in the official Arduino Uno, as well as our Eleven, EtherTen, USBDroid, and other boards. Perfect for building your own Arduino-compatible project directly on a breadboard or on a custom PCB, or for replacing the MCU in an existing board. Comes with the Arduino Uno bootloader pre-installed. Better still, it even has a special label stuck on top with details of the pinout, so you don't even need to look up the datasheet when connecting it up in your project! For more information and to order, click here!