SerialPacket Send Example

SerialPacketSendSnippet.cpp

typedef struct {
    uint8_t device;
    uint8_t command;
    uint32_t value;
    uint64_t serial;
    uint8_t ack;
} Command;

void SenderApplication::didReceiveGoodPacket(SerialPacket *p) {
  Serial.println("Got good packet!");
  Command _receivedCommand;
  memcpy(&_receivedCommand, p->buffer, p->getDataLength());
  Serial.println(_receivedCommand.device, DEC);
}

void SenderApplication::didReceiveBadPacket(SerialPacket *p, uint8_t err) {
  Serial.println("Got error " + String(err, DEC) + " receiving packet. Boo!")
}

void SenderApplication::main() {
  Serial.begin(115200); // debugging output
  Serial1.begin(19200); // sending & receiving packets

  SerialPacket p;
  p.setDelegate(this); 
  p.setTimeout(2000);
  p.use(&Serial1);

  Command aCommandToSend;
  // fill Command structure with random stuff
  aCommandToSend.device = random(1, 254);
  aCommandToSend.command = random(0, 255); // Use a reserved byte (FRAME_START) to test escaping
  aCommandToSend.value = 100;
  aCommandToSend.serial = 0;
  // roughly 1 in 100 packets selected for ack request (set field to STATUS_NACK)
  aCommandToSend.ack = random(1, 100) == 25 ? STATUS_NACK : STATUS_ACK;

  // send it, returns bytes sent so you can be sure it all went
  uint8_t bytesSent = p.send((uint8_t *)&aCommandToSend, sizeof(aCommandToSend));
  
}