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rotary_switch.cpp
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rotary_switch.cpp
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/**
* @file rotarySwitch.cpp
* @author Fern Lane
* @brief Reads RPM setpoint from rotary switch
*
* @copyright Copyright (c) 2024 Fern Lane
*
* This file is part of the ilet-103-motor-controller distribution.
* See <https://github.com/F33RNI/ilet-103-motor-controller> for more info.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* long with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <Arduino.h>
#include "include/config.h"
#include "include/pins.h"
#include "include/rotary_switch.h"
// Preinstantiate
RotarySwitch rotarySwitch;
/**
* @brief Constructs a new Rotary Switch:: Rotary Switch object
*/
RotarySwitch::RotarySwitch (void)
{
rpm_setpoint_raw = RPM_SETPOINTS[0];
rpm_setpoint_filtered = RPM_SETPOINTS[0];
}
/**
* @brief Reads states of rotary switch without filtering it
* Call filter_setpoint() to filter it and get filtered value
*
* @return float unfiltered (RAW) RPM
*/
float
RotarySwitch::read_setpoint (void)
{
for (uint8_t i = 0; i < sizeof (SPEED_SELECTOR_PINS) / sizeof (uint8_t); ++i)
if (!digitalRead (SPEED_SELECTOR_PINS[i]))
rpm_setpoint_raw = RPM_SETPOINTS[i];
return rpm_setpoint_raw;
}
/**
* @brief Filters setpoint. This must be called with normal cycle time for proper filtering
*
* @return float filtered RPM
*/
float
RotarySwitch::filter_setpoint (void)
{
rpm_setpoint_filtered = rpm_setpoint_filtered * SETPOINT_FILTER + rpm_setpoint_raw * (1.f - SETPOINT_FILTER);
return rpm_setpoint_filtered;
}
/**
* @brief Sets rpm_setpoint_raw and rpm_setpoint_filtered to 0
*/
void
RotarySwitch::reset (void)
{
rpm_setpoint_raw = 0.f;
rpm_setpoint_filtered = 0.f;
}