You can do this because TOWA sends single DMTF tones. Inside the Arduino script, you can add your favorite telephone numbers and combine it with a specific integer number. For example, I’ve ...

Arduino's Create Agent is the brand's proprietary application for connecting your physical Arduino boards directly to your computer, as well as Arduino's cloud systems. With the Create Agent, you ...

But what can you do if you don’t have these tools on hand? [Andrew Moser] has a method that lets you pull it off with an Arduino and an LM339 quad comparator. The circuit works by feeding a ...