The DTMF (Dual Tone Multi-Frequency) decoder module is commonly used to control robots with a mobile phone, it is also used in different kinds of home automation projects where mobile dial pad input is required. This module works as a tone decoder that uses its 3.5 mm audio connector socket to get the input audio signal. The DTMF in tone based dial pads which produces a unique combination of two separate sine waves which can be decoded and produced as binary output. This module can produce binary output by getting tone input from 0-9 number, A - D letters, * and # symbols. It is popularly used for mobile and fixed telephone voice dialing and recording related functions.
Specifications :
| Model |
SC9270 DTMF Decoder Module |
| Technology |
Dual Tone Multiple Frequency |
| Operating Voltage |
5V DC |
| Use with |
Mobile Phone |
| Interface |
Audio Jack 3.5 |
| Size (H*W*D) |
46mm*38mm*12mm |
| Using IC |
SC9270D |
| Current |
100mA |
| Output |
DTMF 4-Bit Data |
Additional Resources
Receiver IC Datasheet
DTMF Controlled Robot using Arduino
Package Content
1×DTMF Decoder Module
1x Audio Receiver IC
