int main(void) {
// Create IP connection
IPConnection ipcon;
ipcon_create(&ipcon);
// Create device object
RotaryEncoder re;
rotary_encoder_create(&re, UID, &ipcon);
// Connect to brickd
if(ipcon_connect(&ipcon, HOST, PORT) < 0) {
fprintf(stderr, "Could not connect\n");
return 1;
}
// Don't use device before ipcon is connected
// Register count callback to function cb_count
rotary_encoder_register_callback(&re,
ROTARY_ENCODER_CALLBACK_COUNT,
(void *)cb_count,
NULL);
// Set period for count callback to 0.05s (50ms)
// Note: The count callback is only called every 0.05 seconds
// if the count has changed since the last call!
rotary_encoder_set_count_callback_period(&re, 50);
printf("Press key to exit\n");
getchar();
rotary_encoder_destroy(&re);
ipcon_destroy(&ipcon); // Calls ipcon_disconnect internally
return 0;
}
RotaryEncoder::RotaryEncoder(MasterConnection::Ptr pMasterConn, const std::string& uid):
BrickletType("io.macchina.tf.rotaryencoder", "Tinkerforge Rotary Encoder Bricklet")
{
addProperty("displayValue", &RotaryEncoder::getDisplayValue);
addProperty("countChangedPeriod", &RotaryEncoder::getCountChangedPeriod, &RotaryEncoder::setCountChangedPeriod);
IPConnection *ipcon = pMasterConn.cast<MasterConnectionImpl>()->ipcon();
rotary_encoder_create(&_rotaryEncoder, uid.c_str(), ipcon);
char deviceUID[8];
char masterUID[8];
char position;
Poco::UInt8 hardwareVersion[3];
Poco::UInt8 firmwareVersion[3];
Poco::UInt16 deviceType;
if (rotary_encoder_get_identity(&_rotaryEncoder, deviceUID, masterUID, &position, hardwareVersion, firmwareVersion, &deviceType) == E_OK)
{
setIdentity(deviceUID, masterUID, position, hardwareVersion, firmwareVersion, deviceType);
}
rotary_encoder_register_callback(&_rotaryEncoder, ROTARY_ENCODER_CALLBACK_COUNT, reinterpret_cast<void*>(onCountChanged), this);
rotary_encoder_register_callback(&_rotaryEncoder, ROTARY_ENCODER_CALLBACK_PRESSED, reinterpret_cast<void*>(onButtonPressed), this);
rotary_encoder_register_callback(&_rotaryEncoder, ROTARY_ENCODER_CALLBACK_RELEASED, reinterpret_cast<void*>(onButtonReleased), this);
}