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Added shutdown function #81

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Added shutdown function #81

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18 changes: 18 additions & 0 deletions Adafruit_PN532.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -272,6 +272,24 @@ uint32_t Adafruit_PN532::getFirmwareVersion(void) {
return response;
}

/**************************************************************************/
/*!
@brief Puts the module into sleep mode

@returns 1 if everything is OK, 0 if unable to shutdown
*/
/**************************************************************************/

bool Adafruit_PN532::shutDown() {
pn532_packetbuffer[0] = PN532_COMMAND_POWERDOWN;
pn532_packetbuffer[1] = 0x20; //(0x20, for SPI) (0x28 for SPI and RF detectionThe wakeup source(s) you want too use
pn532_packetbuffer[2] = 0x01; // To eneable the IRQ, 0x00 if you dont want too use the IRQ


if(sendCommandCheckAck(pn532_packetbuffer, 3))
return pn532_packetbuffer[1];
}

/**************************************************************************/
/*!
@brief Sends a command and waits a specified period for the ACK
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1 change: 1 addition & 0 deletions Adafruit_PN532.h
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Expand Up @@ -166,6 +166,7 @@ class Adafruit_PN532 {
bool writeGPIO(uint8_t pinstate);
uint8_t readGPIO(void);
bool setPassiveActivationRetries(uint8_t maxRetries);
bool shutDown(void);

// ISO14443A functions
bool readPassiveTargetID(
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