Pulse-Dialer I needed to test if Verizon FiOS would work with a rotary phone before I bought an antique. This code does it. You need to pull the phone off the hook. Hear a dial tone? Power the Arduino ...

Arduino Pulse Dialer for Analog Telephone Lines. Contribute to mwally/arduino_telephone_pulse_dialer development by creating an account on GitHub.

Learn how a pulse sensor works and how to interface it with Arduino to measure heartbeat accurately in this comprehensive guide.