Hi,
I created an issue for this on the OSC library page but I think it's relevant here too: Can only send after message received? · Issue #97 · CNMAT/OSC · GitHub
I'm trying to read SLIPSerial from across different loops so I can multitask and do other things (like send responses) but altering the simple receive example (SerialReceive.ino, which works fine) doesn't work in this case. This produces decoding errors in the OSC bundle and I'm unsure why, since the logic is the same? I don't see anything special in the SlipSerial code either that would modify the serial port buffer, but I could be missing something.
The code is attached to that issue, but also as follows:
#include <OSCMessage.h>
#include <OSCBundle.h>
#include <OSCBoards.h>
#ifdef BOARD_HAS_USB_SERIAL
#include <SLIPEncodedUSBSerial.h>
SLIPEncodedUSBSerial SLIPSerial( thisBoardsSerialUSB );
#else
#include <SLIPEncodedSerial.h>
SLIPEncodedSerial SLIPSerial(Serial1);
#endif
#define UPDATE_INTERVAL_MSEC 100
int32_t next_time;
uint32_t counter = 0;
boolean LEDState = false; // off
OSCBundle bundleOut;
void setup()
{
pinMode(13, OUTPUT); // LED
// begin SLIPSerial just like Serial
SLIPSerial.begin(115200);
while (!Serial)
continue;
next_time = millis() + UPDATE_INTERVAL_MSEC;
}
void LEDcontrol(OSCMessage &msg)
{
if (msg.isInt(0))
{
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, (msg.getInt(0) > 0) ? HIGH : LOW);
}
else if (msg.isString(0))
{
int length = msg.getDataLength(0);
if (length < 5)
{
char str[length];
msg.getString(0, str, length);
if ((strcmp("on", str) == 0) || (strcmp("On", str) == 0))
{
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, HIGH);
}
else if ((strcmp("Of", str) == 0) || (strcmp("off", str) == 0))
{
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, LOW);
}
}
}
else {
LEDState = !LEDState;
digitalWrite(13, LEDState);
}
}
void loop()
{
OSCBundle bundleIN;
int size;
while (!SLIPSerial.endofPacket())
if ( (size = SLIPSerial.available()) > 0)
{
while (size--)
bundleIN.fill(SLIPSerial.read());
}
if (!bundleIN.hasError()) {
bundleIN.route("/OnMouseDownX", LEDcontrol);
}
bundleIN.empty();
int32_t now = millis();
if ((int32_t)(next_time - now) <= 0)
{
next_time += UPDATE_INTERVAL_MSEC;
counter = (counter + 1) % 100;
// the message wants an OSC address as first argument
bundleOut.add("/CubeX").add((float)counter / 50);
}
SLIPSerial.beginPacket();
bundleOut.send(SLIPSerial); // send the bytes to the SLIP stream
SLIPSerial.endPacket(); // mark the end of the OSC Packet
bundleOut.empty(); // free space occupied by message
}
Thanks in advance.