kled(lum)
koadrobot/devices/kled(lum)
No description
kled(lum)
@/kled(lum)
PORTport
Board port number the LED is connected to. The port should be capable of generating PWM signal.
Digital Port is On if Lum > 0.
LUMnumber
Luminance (brightness) value in relative units [0.0, 1.0].
UPDpulse
Triggers new write
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 lum = getValue<input_LUM>(ctx);
if (isValidDigitalPort(port) || lum>=0 || lum<=1)
{
int val = (int)(lum * lum * lum * 255);
if (!getValue<input_PULL>(ctx)) val = 255 - val;
// if port has not pwm, val >0.5 is High on digitalpin.
::analogWrite(port, val);
emitValue<output_DONE>(ctx, 1);
}
else
emitValue<output_ERR>(ctx, 1);
}
}