write-string
wayland/nextion/write-string
Write to the string attribute of an object.
write-string
@/write-string
Write to the string attribute of an object.
DEV@/nextion-serial
A nextion device.
CMDstring
Command. Specify object and attribute to be written. For example, t0.txt will overwrite the text attribute of the object named t0.
TEXTstring
String to be written.
UPDpulse
Update.
Donepulse
Pulse on write.
C++ implementation
node {
void evaluate(Context ctx) {
// The node responds only if there is an input pulse
if (!isInputDirty<input_UPD>(ctx))
return;
// Get a pointer to the `EasyNex` class instance
auto eznex = getValue<input_DEV>(ctx);
auto xStringCmd = getValue<input_CMD>(ctx);
auto xStringText = getValue<input_TEXT>(ctx);
int N=length(xStringCmd) + 1;
char cStringCmd[N];
for(int i=0;i<N;i++)
cStringCmd[i]=0;
dump(xStringCmd, cStringCmd);
N=length(xStringText) + 1;
char cStringText[N];
for(int i=0;i<N;i++)
cStringText[i]=0;
dump(xStringText, cStringText);
eznex -> writeStr(cStringCmd, cStringText);
emitValue<output_Done>(ctx, 1);
}
}