servo
xod/common-hardware/servo
Drives a standard hobby servo.
Possible errors:
— Invalid port
servo
@/servo
Deprecated: Use `xod-dev/servo/servo` instead
Drives a standard hobby servo.
Possible errors:
— Invalid port
PORTport
Board port number the servo is connected to.
VALnumber
Desired servo angle or value in unit range [0.0, 1.0]. For standard servo 0.0 would be mapped to 0° and 1.0 would be 180°.
UPDpulse
Triggers new write
DONEpulse
Fires on writing complete
C++ implementation
#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD
{{#global}}
#include <Servo.h>
{{/global}}
struct State {
Servo servo;
int configuredPort = -1;
};
{{ GENERATED_CODE }}
void evaluate(Context ctx) {
static_assert(isValidDigitalPort(constant_input_PORT), "must be a valid digital port");
if (!isInputDirty<input_UPD>(ctx))
return;
State* state = getState(ctx);
// TODO
auto port = (int)getValue<input_PORT>(ctx);
if (port != state->configuredPort) {
state->servo.attach(port);
state->configuredPort = port;
}
state->servo.write(getValue<input_VAL>(ctx) * 180);
emitValue<output_DONE>(ctx, 1);
}