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Set Bluefruit LE advertising interval #422

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Merged
merged 1 commit into from
May 18, 2019
Merged

Set Bluefruit LE advertising interval #422

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4 changes: 4 additions & 0 deletions examples/StandardFirmataBLE/StandardFirmataBLE.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -770,6 +770,10 @@ void setup()

stream.setLocalName(FIRMATA_BLE_LOCAL_NAME);

#ifdef FIRMATA_BLE_ADVERTISING_INTERVAL
// set the BLE advertising interval
stream.setAdvertisingInterval(FIRMATA_BLE_ADVERTISING_INTERVAL);
#endif
// set the BLE connection interval - this is the fastest interval you can read inputs
stream.setConnectionInterval(FIRMATA_BLE_MIN_INTERVAL, FIRMATA_BLE_MAX_INTERVAL);
// set how often the BLE TX buffer is flushed (if not full)
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3 changes: 3 additions & 0 deletions examples/StandardFirmataBLE/bleConfig.h
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Expand Up @@ -74,6 +74,9 @@
//#define BLUEFRUIT_LE_SPI

#ifdef BLUEFRUIT_LE_SPI
// Value must be between 20ms and 10.24s
#define FIRMATA_BLE_ADVERTISING_INTERVAL 20 // 20ms

// Both values must be between 10ms and 4s
#define FIRMATA_BLE_MIN_INTERVAL 15 // 15ms
#define FIRMATA_BLE_MAX_INTERVAL 30 // 30ms
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26 changes: 18 additions & 8 deletions utility/BluefruitLE_SPI_Stream.h
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Expand Up @@ -17,6 +17,7 @@ class BluefruitLE_SPI_Stream : public Stream
BluefruitLE_SPI_Stream(int8_t csPin, int8_t irqPin, int8_t rstPin);

void setLocalName(const char *localName);
void setAdvertisingInterval(unsigned short advertisingInterval);
void setConnectionInterval(unsigned short minConnInterval, unsigned short maxConnInterval);
void setFlushInterval(int flushInterval);

Expand All @@ -38,6 +39,7 @@ class BluefruitLE_SPI_Stream : public Stream
Adafruit_BluefruitLE_SPI ble;

String localName;
unsigned short advertisingInterval;
unsigned short minConnInterval;
unsigned short maxConnInterval;

Expand All @@ -48,6 +50,7 @@ class BluefruitLE_SPI_Stream : public Stream

BluefruitLE_SPI_Stream::BluefruitLE_SPI_Stream(int8_t csPin, int8_t irqPin, int8_t rstPin) :
ble(csPin, irqPin, rstPin),
advertisingInterval(0),
minConnInterval(0),
maxConnInterval(0),
txCount(0)
Expand All @@ -58,6 +61,11 @@ void BluefruitLE_SPI_Stream::setLocalName(const char *localName)
this->localName = localName;
}

void BluefruitLE_SPI_Stream::setAdvertisingInterval(unsigned short advertisingInterval)
{
this->advertisingInterval = advertisingInterval;
}

void BluefruitLE_SPI_Stream::setConnectionInterval(unsigned short minConnInterval, unsigned short maxConnInterval)
{
this->minConnInterval = minConnInterval;
Expand Down Expand Up @@ -89,14 +97,16 @@ void BluefruitLE_SPI_Stream::begin()
ble.println(localName);
}

// Set connection interval
if (minConnInterval > 0 && maxConnInterval > 0) {
ble.print("AT+GAPINTERVALS=");
ble.print(minConnInterval);
ble.print(",");
ble.print(maxConnInterval);
ble.println(",,,");
}
// Set connection and advertising intervals
ble.print("AT+GAPINTERVALS=");
if (minConnInterval > 0) ble.print(minConnInterval);
ble.print(",");
if (maxConnInterval > 0) ble.print(maxConnInterval);
ble.print(",");
if (advertisingInterval > 0) ble.print(advertisingInterval);
ble.print(",,"); // Always omit fast advertising timeout, hence two commas
if (advertisingInterval > 0) ble.print(advertisingInterval);
ble.println();

// Disable real and simulated mode switch (i.e. "+++") command
ble.println("AT+MODESWITCHEN=local,0");
Expand Down