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ArduinoBLE : BLECharacteristic class
valueUpdated
Description
Has the characteristics value been updated via a notification or indication.
Syntax
bleCharacteristic.valueUpdated()
Parameters
None
Returns
true, if the characteristics value been updated via a notification or indication
Example
…
while (peripheral.connected()) {
// while the peripheral is connected
// check if the value of the simple key characteristic has been updated
if (simpleKeyCharacteristic.valueUpdated()) {
// yes, get the value, characteristic is 1 byte so use byte value
byte value = 0;
simpleKeyCharacteristic.readValue(value);
if (value & 0x01) {
// first bit corresponds to the right button
Serial.println("Right button pressed");
}
if (value & 0x02) {
// second bit corresponds to the left button
Serial.println("Left button pressed");
}
}
}
…
See Also
Reference Home
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