Aging often makes reading blue metal-film resistor color bands a challenge, leading to frequent multimeter use, which can be frustrating. Mike devised a clever solution: the Resistorganizer, streamlining component management.
At its core, a microcontroller reads resistor values through a potential divider voltage measurement. The Resistorganizer enhances this concept with an array of analog multiplexer chips, designed to slot into a breadboard. Each line can connect a resistor to ground. However, it’s not that simple—maintaining readability necessitates switching resistors in and out to form the other half of the divider for various ranges, handled by another multiplexer.
Additionally, digital multiplexers manage an LED to indicate the selected resistor, operated via buttons. A dot-matrix LCD displays the value. The Resistorganizer is a compelling solution for electronics enthusiasts seeking a more efficient way to handle resistors.
Read more: Finally, a Machine to Organize Resistors!