MIKROE-3505 L Meter Click Board Mikroe MIKROE-3505 L Meter Click Board is a compact and accurate click board for measuring and monitoring the inductance of external components. The LM311 measures the frequency of the LC circuit and the unknown inductance value based on the known capacitance value. This Mikroe click board is based on the design of a single high-speed voltage comparator LM311. The mikroSDK-compliant library supports the MIKROE-3505. This click board is thoroughly tested and can be readily used on a system equipped with the mikroBUS™ socket. This click board has a General Purpose Input/Output (GPIO) interface.