write(analog-pwm)
koadrobot/ports/write(analog-pwm)
No description
write(analog-pwm)
@/write(analog-pwm)
PORTport
Digital port to read from. Should start with `D` to succeed.
DUTYnumber
Value in range 0 … 1
UPDpulse
Triggers new read
PULLboolean
Hardware connection.
pulldown (true) - High,
pullup (false) - Low (1-duty).
ERRpulse
Fires if write failed. E.g. `PORT` does not exist.
DONEpulse
Fires on writing complete
C++ implementation
struct State {
};
{{ GENERATED_CODE }}
void evaluate(Context ctx)
{
if (isInputDirty<input_UPD>(ctx))
{
const uint8_t port = getValue<input_PORT>(ctx);
Number duty = getValue<input_DUTY>(ctx);
if (digitalPinHasPWM(port) || duty>=0 || duty<=1)
{
int val = (int)(duty * 255);
if (!getValue<input_PULL>(ctx)) val = 255 - val;
::analogWrite(port, val);
emitValue<output_DONE>(ctx, 1);
}
else
emitValue<output_ERR>(ctx, 1);
}
}