| Quantity | Component name | |
| 1 | × | STM32F103C8T6 minimal dev. board (aka "blue pill") |
| 1 | × | 3.3V USB/Serial adapter I used FT232RL. It's for programming the MCU |
| 1 | × | 2.4" LCD TFT touch screen display You'll find it by searching "2.4 tft lcd" on eBay |
| 1 | × | BMP180 For pressure and temperature sensing |
| 1 | × | A box or enclosure As you might have seen, mine was a pretty toy car |
| 1 | × | 6-9V battery I used 7.2V li-ion |
| 1 | × | Small switch Our master switch |
| 1 | × | 2x2 (square) female header for pin bar For the voltage dividers |
| 1 | × | 2x2 (square) male pin bar For each of the voltage dividers |
| 1 | × | LM7805 Power Management ICs / Linear Voltage Regulators and LDOs |
| 2 | × | 2.2K Resistor To increase impedance of the scope input pins |
| 1 | × | LM339 Comparator for the inductance meter |
| 1 | × | 330R Resitor For the inductance meter, as well as everything below |
| 1 | × | 150R Resistor |
| 1 | × | 1uF ceramic capacitor The lower the tolerance the better |
| 1 | × | 1N4007 Discrete Semiconductors / Diodes and Rectifiers |
Vítor Barbosa