433-rf-receive
wayland/433mhz-rf-module/433-rf-receive
Receive a message as a string. Pin 11 of the Arduino should be connected to the data pin of the receiver.
433-rf-receive
@/433-rf-receive
Receive a message as a string. Pin 11 of the Arduino should be connected to the data pin of the receiver.
DEV@/433-rf-device
A 433-rf-device.
UPDpulse
Update. Check if new message has been received.
RECpulse
Received. Pulse on reception of message.
MSGstring
Message. The message that has been received.
C++ implementation
struct State {
uint8_t buf[RH_ASK_MAX_MESSAGE_LEN];
CStringView view;
State() : view(buf) {}
};
{{ GENERATED_CODE }}
void evaluate(Context ctx) {
auto state = getState(ctx);
// The node responds only if there is an input pulse
if (!isInputDirty<input_UPD>(ctx))
return;
// Get a pointer to the `RH_ASK` class instance
auto driver = getValue<input_DEV>(ctx);
uint8_t buflen = sizeof(state->buf);
// clear buffer
memset(state->buf, 0, buflen);
if (driver->recv(state->buf, &buflen)) // Non-blocking
{
emitValue<output_MSG>(ctx, XString(&state->view));
emitValue<output_REC>(ctx, 1);
}
}