With the goal of measuring inductors as seamlessly as a multimeter measures capacitance, I designed the device to be portable, accurate, and user-friendly.
By exploring the key properties of inductors, I refined my design through eight iterations to stay within project parameters. I also ran simulations in LTSpice and MATLAB Simulink to confirm the circuit’s functionality.
The project is still in progress, currently on Version 8.
For a detailed breakdown of each iteration, see the Project Iterations page.
Built a scaled temperature regulation circuit using a thermistor to send signals to an Arduino. Incorporated transistors and diodes to drive the fan motor while protecting the Arduino from reverse voltage.
Using a thermistor in a voltage divider, I measured temperature changes as variations in voltage. When the voltage exceeded a set threshold, the microcontroller activated a transistor to turn on the fan, which shut off once the temperature dropped back below the threshold.
After testing, I optimized the code by adding a self-calibration feature. On startup, the circuit calibrates to the ambient room temperature, enabling seamless operation across different environments.
View the diagram, source code, and demo video.