DTMF Encoder and Decoder Solder Kit

Description

This solder kit comes with the PCB’s and all necessary parts to complete the DTMF Encoder and DTMF Decoder Online Build.

The Encoder is a shield for an Arduino Uno and the Decoder is an 8870 interfaced to a PIC. In the Circuit Build video, we cover the states of the data lines with LEDs and display the last digit dialed on a 7 segment display.