NfcTagClass Class

NfcTagClass Class

Description
A class for managing NFC functionality of Ameba.

Syntax
class NfcTagClass

Members

Public Constructors 
The public constructor should not be used as this class is intended to be a singleton class. Access member functions using the object instance named NFC tag.
Public Methods 
NfcTagClass::beginStart NFC firmware.
NfcTagClass::endStop NFC firmware.
NfcTagClass::appendRtdTextCreate and append an NFC Data Exchange Format (NDEF) text record.
NfcTagClass::appendRtdUriCreate and append the NDEF URI record.
NfcTagClass::appendVcardCreate and append V-Card record.
NfcTagClass::appendAndroidPlayAppCreate and append AAR record.
NfcTagClass::clearNdefMessageClear cached NDEF records.
NfcTagClass::isUidValidCheck if UID field is valid.
NfcTagClass::convertNdefToRawConvert the cached NDEF messages into raw NFC format data.
NfcTagClass::convertRawToNdefConvert the raw NFC format data into NDEF messages.
NfcTagClass::convertRawToCacheUpdate the NFC tag content into NFC firmware.
NfcTagClass::getLastUpdateTimestampGet the timestamp when the NFC cache was last updated.
NfcTagClass::setWriteProtectSet protection to enable/disable modification of NFC tag content.
NfcTagClass::getNdefSizeGet current stored NDEF message size.
NfcTagClass::getNdefDataGet current stored NDEF messages.

NfcTagClass::begin

Description
Start NFC firmware.

Syntax
void begin(void);

Parameters
NA

Returns
NA

Example Code
Example: GetTagContent
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/GetTagContent/GetTagContent.ino)

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::end

Description
Stop NFC firmware.

Syntax
void end(void);

Parameters
NA

Returns
NA

Example Code
NA

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::appendRtdText

Description
Create and append an NFC Data Exchange Format (NDEF) text record.

Syntax
void appendRtdText(const char *text, unsigned char encodeType, const char *IANALanguageCode);
void appendRtdText(const char *text);

Parameters
text: the text message to add.
encodeType: The encoding type in UTF8 or UTF16.
IANALanguageCode: The code for language selected.

Returns
NA

Example Code
Example: StoreTagContent
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/StoreTagContent/StoreTagContent.ino)

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::appendRtdUri

Description
Create and append the NDEF URI record.

Syntax
void appendRtdUri(const char *text, unsigned char uriIdentifierCode);
void appendRtdUri(const char *text);

Parameters
text: The URI string
uriIdentifierCode: The URI code corresponding to the desired URI header

Returns
NA

Example Code
Example: UriWebPage
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/UriWebPage/UriWebPage.ino)

Notes and Warnings
uriIdentifierCode defaults to RTD_URI_HTTP_WWW if not specified, which is the “http://www.” header. “NfcTag.h” must be included to use the class function.

NfcTagClass::appendVcard

Description
Create and append the V-Card record.

Syntax
void appendVcard(const char *vcard, int vcard_len);

Parameters
vcard: The V-Card string content.
vcard_len: The length of the V-Card content.

Returns
NA

Example Code
Example: VCardContact
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/VCardContact/VCardContact.ino)

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::appendAndroidPlayApp

Description
Create and append Android Application Record (AAR) record.

Syntax
void appendAndroidPlayApp(const char *appName);

Parameters
appName: The application name in Android Google Play.

Returns
NA

Example Code
Example: GooglePlayApp
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/GooglePlayApp/GooglePlayApp.ino)

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::clearNdefMessage

Description
Clear cached NDEF records in NfcTag object.

Syntax
void clearNdefMessage(void);

Parameters
NA

Returns
NA

Example Code
Example: UpdateTagContent
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/UpdateTagContent/UpdateTagContent.ino)

Notes and Warnings
Only clears cached NDEF records in NfcTag object, does not affect records in NFC firmware. “NfcTag.h” must be included to use the class function.

NfcTagClass::isUidValid

Description
Check the contents of nfc_tag_content and verify the UID field.

Syntax
bool isUidValid(void);

Parameters
NA

Returns
This function returns true if the UID is valid, else return false.

Example Code
NA

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::convertNdefToRaw

Description
Convert the cached NDEF messages into raw NFC Tag Type2 format data.

Syntax
void convertNdefToRaw(void);

Parameters
NA

Returns
NA

Example Code
Example: UpdateTagContent
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/UpdateTagContent/UpdateTagContent.ino)

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::convertRawToNdef

Description
Convert the raw NFC Tag Type2 format data into NDEF messages.

Syntax
void convertRawToNdef(void);

Parameters
NA

Returns
NA

Example Code
NA

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::updateRawToCache

Description
Update raw NFC data into NFC firmware.

Syntax
void updateRawToCache(void);

Parameters
NA

Returns
NA

Example Code
Example: UpdateTagContent
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/UpdateTagContent/UpdateTagContent.ino)

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::getLastUpdateTimestamp

Description
Get the timestamp when the NFC cache was last updated.

Syntax
uint32_t getLastUpdateTimestamp(void);

Parameters
NA

Returns
This function returns the last update timestamp as 32-bit unsigned integer representing in milliseconds.

Example Code
Example: GetTagContent
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/UpdateTagContent/UpdateTagContent.ino)

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::setWriteProtect

Description
Set protection to enable/disable modifying of NFC tag content on Ameba by an NFC reader.

Syntax
void setWriteProtect(bool enable);

Parameters
enable: set to true to enable write protection, set to false to disable write protection.

Returns
NA

Example Code
NA

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::getNdefSize

Description
Get the currently stored NDEF message size.

Syntax
unsigned char getNdefSize(void);

Parameters
NA

Returns
This function returns the current size of the stored NDEF messages.

Example Code
Example: GetTagContent
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/GetTagContent/GetTagContent.ino)

Notes and Warnings
“NfcTag.h” must be included to use the class function.

NfcTagClass::getNdefData

Description
Get the current stored NDEF messages.

Syntax
const struct NDEF *getNdefData(void);

Parameters
NA

Returns
This function returns the NDEF message in the struct array.

Example Code
Example: GetTagContent
(https://github.com/ambiot/amb1_arduino/blob/dev/Arduino_package/hardware/libraries/NFC/examples/GetTagContent/GetTagContent.ino)

Notes and Warnings
“NfcTag.h” must be included to use the class function.

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