HT9170 Class Reference

API for the HT9170 DTMF Decoder. More...

Detailed Description

• ID: ht9170
• Name: HT9170 DTMF Decoder
• Other Names: HT9170B, HT9170D
• Category: other
• Manufacturer: seeed
• Link: http://www.seeedstudio.com/depot/DTMFDual-Tone-Multi-Frequency-Shield-p-1839.html
• Connection: gpio

This driver was developed using the DTMF (Dual-Tone Multi-Frequency) Shield by Seeed Studio*. It can decode DTMF signals presented at its audio input. It does not generate DTMF signals.

Public Member Functions
synchronized void	delete ()
	HT9170 (int dr, int o1, int o2, int o3, int o4)
boolean	digitReady ()
char	decodeDigit ()

Constructor & Destructor Documentation

HT9170	(	int	dr,
		int	o1,
		int	o2,
		int	o3,
		int	o4
	)

HT9170 constructor

Parameters

dr	Data ready pin
o1	Digital pin for data output 1
o2	Digital pin for data output 2
o3	Digital pin for data output 3
o4	Digital pin for data output 4

Member Function Documentation

char decodeDigit

(

)

Decodes a digit and returns it

boolean digitReady

(

)

Checks to see if a DTMF number is ready to be read

Returns

True if there is a digit available to decode

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The documentation for this class was generated from the following file:

• /var/lib/jenkins/workspace/upm-doc-stable/build-33/src/ht9170/HT9170.java