Features:
The module is designed for dialing keyboard and MCU interface.
The module can instruct MCU(or keyboard)to generate 16 dual tones from Audio 1/2.
The module equipped with two 3.5mm audio plug for same time using.
Wide voltage range,you can connect it with voltage from 5~24VDC.
There are 7 MCU input interface on the module.
Specification:
Working Voltage:5~24VDC
Working Current:6~8mA
Power Port:2.1*5.5mm Female head male head DC power socket
Audio Port:2*3.5mm Audio Jack
MCU Input Port: 7x 2.54mm Pin,5V GND D3 D2 D1 D0 STD
Size:63 * 40 * 13mm / 2.48 * 1.57 * 0.51in
Weight: 18g/0.63oz
Package List:
1*DTMF Generator Module
1*50cm Male to Male 3.5mm Audio Cord
