Arduino check frequency output or frequency reading.

I wanted to check the frequency reading on a Vincy VC99 Mulitmeter.

Brand Name: Vichy (Name change to Vici 1 May 2014)

Model Number: VC99

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.

This example code is in the public domain.

Arduino Leonardo Compatible

This Indiegogo crowd funding campaign started on Jul 12 and closed on August 10, 2013 (11:59pm PT).

http://tinyurl.com/9-ARDUINO

https://vimeo.com/70197613

https://www.indiegogo.com

http://www.borderlesselectronics.com

Arduino Leonardo Compatible Code:-

File :

frequency_tester.ino

http://1drv.ms/1NU0DnQ
.