Radio implementation using the Serial communication. More...

#include <LiquidCrystal.h>
#include <Wire.h>
#include <radio.h>
#include <rda5807M.h>
#include <si4703.h>
#include <si4705.h>
#include <tea5767.h>
#include <RDSParser.h>

Enumerations
enum	KEYSTATE

enum	RADIO_STATE { STATE_PARSECOMMAND, STATE_PARSEINT, STATE_EXEC, STATE_NONE = 0, STATE_PARSECOMMAND, STATE_PARSEINT, STATE_EXEC, STATE_FREQ, STATE_VOL, STATE_MONO, STATE_SMUTE, STATE_PARSECOMMAND, STATE_PARSEINT, STATE_EXEC, STATE_NONE = 0, STATE_PARSECOMMAND, STATE_PARSEINT, STATE_EXEC, STATE_FREQ, STATE_VOL, STATE_MONO, STATE_SMUTE }
	State definition for this radio implementation. More...

Functions
enum KEYSTATE	__attribute__ ((packed))

KEYSTATE	getLCDKeypadKey ()

LiquidCrystal	lcd (8, 9, 4, 5, 6, 7)

void	DisplayFrequency (RADIO_FREQ f)

void	DisplayServiceName (char *name)

void	DisplayTime (uint8_t hour, uint8_t minute)

void	RDS_process (uint16_t block1, uint16_t block2, uint16_t block3, uint16_t block4)

void	setup ()
	Setup a FM only radio configuration with I/O for commands and debugging on the Serial port. More...

void	loop ()
	Constantly check for serial input commands and trigger command execution. More...

Variables
	KEYSTATE_NONE

	KEYSTATE_SELECT

	KEYSTATE_LEFT

	KEYSTATE_UP

	KEYSTATE_DOWN

	KEYSTATE_RIGHT

RADIO_FREQ	preset []

int	i_sidx =5
	Start at Station with index=5. More...

SI4705	radio
	Create an instance of a SI4705 chip radio. More...

RDSParser	rds
	get a RDS parser More...

enum RADIO_STATE	__attribute__

RADIO_STATE	state
	The state variable is used for parsing input characters. More...

Detailed Description

Radio implementation using the Serial communication.

Author: Matthias Hertel, http://www.mathertel.de

Copyright: Copyright (c) 2014 by Matthias Hertel.
This work is licensed under a BSD style license.
See http://www.mathertel.de/License.aspx

This is a full function radio implementation that uses a LCD display to show the current station information.
It can be used with various chips after adjusting the radio object definition.
Open the Serial console with 57600 baud to see current radio information and change various settings.

Wiring

The necessary wiring of the various chips are described in the Testxxx example sketches. The boards have to be connected by using the following connections:

Arduino port	SI4703 signal	RDA5807M signal
GND	GND	GND
3.3V	VCC	-
5V	-	VCC
A5	SCLK	SCLK
A4	SDIO	SDIO
D2	RST	-

More documentation and source code is available at http://www.mathertel.de/Arduino

History:

05.08.2014 created.
04.10.2014 working.
22.03.2015 Copying to LCDKeypadRadio.

Enumeration Type Documentation

enum KEYSTATE

enum RADIO_STATE

State definition for this radio implementation.

Enumerator
STATE_PARSECOMMAND	waiting for a new command character.
STATE_PARSEINT	waiting for digits for the parameter.
STATE_EXEC	executing the command.
STATE_NONE
STATE_PARSECOMMAND	waiting for a new command character.
STATE_PARSEINT	waiting for digits for the parameter.
STATE_EXEC	executing the command.
STATE_FREQ
STATE_VOL
STATE_MONO
STATE_SMUTE
STATE_PARSECOMMAND	waiting for a new command character.
STATE_PARSEINT	waiting for digits for the parameter.
STATE_EXEC	executing the command.
STATE_NONE
STATE_PARSECOMMAND	waiting for a new command character.
STATE_PARSEINT	waiting for digits for the parameter.
STATE_EXEC	executing the command.
STATE_FREQ
STATE_VOL
STATE_MONO
STATE_SMUTE

Function Documentation

enum KEYSTATE __attribute__ ( (packed) )

void DisplayFrequency ( RADIO_FREQ f )

This function will be when a new frequency is received. Update the Frequency on the LCD display.

void DisplayServiceName ( char * name )

This function will be called by the RDS module when a new ServiceName is available. Update the LCD to display the ServiceName in row 1 chars 0 to 7.

void DisplayTime	(	uint8_t	hour,
		uint8_t	minute
	)

This function will be called by the RDS module when a rds time message was received. Update the LCD to display the time in right upper corner.

KEYSTATE getLCDKeypadKey ( )

This function determines the current pressed key but

doesn't return short key down situations that are key bouncings.
returns a specific key down only once.

LiquidCrystal lcd	(	8	,
		9	,
		4	,
		5	,
		6	,
		7
	)

void loop ( )

Constantly check for serial input commands and trigger command execution.

void RDS_process	(	uint16_t	block1,
		uint16_t	block2,
		uint16_t	block3,
		uint16_t	block4
	)

void setup ( )

Setup a FM only radio configuration with I/O for commands and debugging on the Serial port.

Variable Documentation

enum RADIO_STATE __attribute__

int i_sidx =5

Start at Station with index=5.

KEYSTATE_DOWN

KEYSTATE_LEFT

KEYSTATE_NONE

KEYSTATE_RIGHT

KEYSTATE_SELECT

KEYSTATE_UP

RADIO_FREQ preset[]

Initial value:

= {
  8770,
  8810, 
  8820,
  8850, 
  8890, 
  8930, 
  8980,
  9180,
  9220, 9350,
  9440, 
  9510, 
  9530,
  9560, 
  9680, 9880,
  10020, 
  10090, 
  10110, 
  10030, 10260, 10380, 10400,
  10500 
}

SI4705 radio

Create an instance of a SI4705 chip radio.

The radio object has to be defined by using the class corresponding to the used chip. by uncommenting the right radio object definition.

RDSParser rds

get a RDS parser

RADIO_STATE state

The state variable is used for parsing input characters.

Enumerations