encode
wayland/gps/encode
Parse NMEA data stream.
encode
@/encode
Parse NMEA data stream.
GPS@/gps-device
A gps-device.
UARTxod/uart/uart
Universal asynchronous receiver-transmitter interface.
Waitnumber
On each update (UPD), wait this number of milliseconds for data to arrive from GPS device (default=1000).
UPDpulse
Update.
Donepulse
Pulse on completion.
C++ implementation
#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD
node {
void evaluate(Context ctx) {
if (!isInputDirty<input_UPD>(ctx))
return;
auto gps = getValue<input_GPS>(ctx);
auto uart = getValue<input_UART>(ctx);
auto wait = getValue<input_Wait>(ctx);
// Ensure that gps instance is being fed. See smartDelay in:
// https://github.com/mikalhart/TinyGPSPlus/blob/master/examples/FullExample/FullExample.ino
uint8_t byte = 0x00;
uint32_t start = millis();
do {
while (uart->available()) {
uart->readByte(&byte);
gps->encode(byte);
}
} while (millis() - start < wait);
emitValue<output_Done>(ctx, 1);
}
}