How to Read Frequency Output with Arduino and Vichy VC99 Multimeter 📟

Arduino check frequency output or frequency reading. <br /> <br />I wanted to check the frequency reading on a Vincy VC99 Mulitmeter. <br /> <br />Brand Name: Vichy (Name change to Vici 1 May 2014) <br /> <br />Model Number: VC99 <br /> <br />So I used the tone command in an Arduino Leonardo Compatible to send out a frequency with pluses on LED's to indicate the frequency being generated. <br /> <br />This example code is in the public domain. <br /> <br />Arduino Leonardo Compatible <br /> <br />This Indiegogo crowd funding campaign started on Jul 12 and closed on August 10, 2013 (11:59pm PT). <br /> <br />http://tinyurl.com/9-ARDUINO <br /> <br />https://vimeo.com/70197613 <br /> <br />https://www.indiegogo.com <br /> <br />http://www.borderlesselectronics.com <br /> <br />Arduino Leonardo Compatible Code:- <br /> <br />File : <br /> <br />frequency_tester.ino <br /> <br />http://1drv.ms/1NU0DnQ <br />.