read(analog)
koadrobot/ports/read(analog)
No description
read(analog)
@/read(analog)
PORTport
Analog port to read from. Should start with `A` to succeed.
UPDpulse
Triggers new read
PULLboolean
Hardware connection.
pulldown (true) - High,
pullup (false) - Low (1-duty).
ERRpulse
Fires if update failed. E.g. `PORT` is not an ADC port.
DONEpulse
Fires on writing complete
DUTYnumber
C++ implementation
struct State {
};
{{ GENERATED_CODE }}
void evaluate(Context ctx)
{
if (!isInputDirty<input_UPD>(ctx))
return;
const uint8_t port = getValue<input_PORT>(ctx);
if (isValidAnalogPort(port))
{
::pinMode(port, INPUT);
Number val = :::analogRead(port) / 1023.;
if (getValue<input_PULL>(ctx))
emitValue<output_DUTY>(ctx, val);
else
emitValue<output_DUTY>(ctx, 1.0-val);
emitValue<output_DONE>(ctx, 1);
}
else
emitValue<output_ERR>(ctx, 1);
}