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// © Copyright CERN, Riga Technical University and University of Liverpool 2020.
// All rights not expressly granted are reserved.
//
// This file is part of hev-sw.
//
// hev-sw is free software: you can redistribute it and/or modify it under
// the terms of the GNU General Public Licence as published by the Free
// Software Foundation, either version 3 of the Licence, or (at your option)
// any later version.
//
// hev-sw 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 General Public Licence
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with hev-sw. If not, see <http://www.gnu.org/licenses/>.
//
// The authors would like to acknowledge the much appreciated support
// of all those involved with the High Energy Ventilator project
// (https://hev.web.cern.ch/).
// Arduino Nano 33 IOT
#define BOARD "NANO33IOT"
// digital pins
const int pin_valve_air_in = 4;
const int pin_valve_o2_in = 5;
const int pin_valve_purge = 6;
const int pin_o2_sensor = 7;
// pwm pins
const int pin_valve_inhale = 2; // formerly pin_valve_out
const int pin_valve_exhale = 3; // formerly pin_valve_scavenge
// adcs
// const int pin_pressure_air_supply = A0;
// const int pin_pressure_o2_supply = A6;
const int pin_pressure_air_regulated = A0;
const int pin_pressure_buffer = A1;
const int pin_pressure_inhale = A2;
const int pin_pressure_patient = A3;
const int pin_temperature_buffer = A4;
const int pin_pressure_o2_regulated = A5;
const int pin_pressure_diff_patient = A6;
const int pin_led_green = 8;
const int pin_led_yellow = 9;
const int pin_led_red = 10;
// buzzer
const int pin_buzzer = 11;
// buttons
const int pin_spare_1 = 12;
const int pwm_resolution = 8; // 8 bit resolution; up to 12 possible