Inductance Meter Using Arduino: Well here we are going to build an inductance meter using the Arduino microcontroller. Saikat Patra is passionate about electronics and MCU based embedded system applications -- Shibendu Mahata is M.Tech (gold medallist) in instrumentation and electronics engineering from Jadavpur University.

Circuit is simple, a LCD is interfaced with Arduino to display the measured Capacitance of capacitor. The meter measures capacitance it outputs to an OLED and serial monitor. Test 1 Range 1 uF to 4F. There are many Capacitance Meters available in the market but we have built an Arduino Capacitance Meter in this project. Currently, he is pursuing Ph.D from NIT, Durgapur. A Square wave Generator Circuit (555 in Astable mode) is connected to Arduino, where we have connected the Capacitor whose capacitance needs to be measured.

The circuit diagram of the Capacitance Meter using Arduino is shown in below figure. (The OLED is optional as data via serial monitor on a PC) Three push buttons start the three tests respectively. Each Arduino capacitance meter relies on a property of resistor capacitor (RC) circuits- the time constant. Using this method we are able to calculate inductance about 80uH to 15,000uH, but it should work for inductors a bit smaller or much larger. Test 3 Range 4.7 nF to 180 uF. A Capacitor is an electrical device that stores electric charge and this ability of the capacitor […] Set discharge pin to INPUT (so it can't discharge the capacitor) Record the start time with millis() Set charge pin to OUTPUT and make it HIGH Check the voltage repeatedly in a loop until it gets to 63.2% of total voltage. Capacitance Meter, as the name suggests, is a device that is used to measure the Capacitance of a Capacitor.

Test 2 Range 18 pF to 470 uF. Capacitance Meter: Capacitors are vital components in electronics, but sometimes they are broken, or the value printed on the cap has become unreadable. Capacitance meter, Arduino-based, three tests , range 18pf to 4F , Push Button input , OLED and serial monitor output. Alogrithm for capacitance meter sketch. Before we start building the circuits, let’s get a little background on how we can use the Arduino to measure capacitance… How the Arduino Can Measure Capacitance. Arduino Based Digital Capacitance Meter: An Interrupt Based Approach.