そのため、シリアル コマンド (文字列) を読み取る Arduino スケッチがあり、受け取ったコマンドに基づいてスケッチに何かを実行させます。今のところ、2つのコマンドがあります。
- {open_valve}
- {close_valve}
コマンド {open_valve} を Arduino に送信すると、バルブは正常に開きますが、コマンド {close_valve} を Arduino に送信するとバルブが閉じません。スケッチは次のようになります。
// flow_A LED
int led = 4;
// relay_A
const int RELAY_A = A0;
// variables from sketch example
String inputString = ""; // a string to hold incoming data
boolean stringComplete = false; // whether the string is complete
// variables from SO thread
boolean LED_state = false;
boolean vavle_open = false;
// flowmeter shit
unsigned long totalCount = 0;
unsigned long previousCount = 0;
int pin = 2;
unsigned long duration;
// storage variable for the timer
unsigned long previousMillis=0;
int interval=1000; //in milliseconds
// counters for each flowmeter
unsigned long countA = 0;
void setup() {
Serial.begin(115200); // open serial port, sets data rate to 115200bps
Serial.println("Power on test");
inputString.reserve(200);
pinMode(RELAY_A, OUTPUT);
// flowmeter shit
pinMode(pin, INPUT);
}
void open_valve() {
digitalWrite(RELAY_A, HIGH); // turn RELAY_A on
// set the boolean value for "vavle_open" to true
//valve_open = true;
Serial.println("Valve Open");
}
void close_valve() {
Serial.println("2");
digitalWrite(RELAY_A, LOW); // turn RELAY_A off
//valve_open = false;
Serial.println("3");
Serial.println("Vavle Closed");
}
void controlValve(bool open)
{
}
void flow_A_blink() {
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for one second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
void flow_A_blink_stop() {
digitalWrite(led, LOW);
}
void getFlow() {
duration = pulseIn(pin, HIGH);
Serial.print(duration);
Serial.println("");
delay(200);
}
/*
* Main program loop, runs over and over repeatedly
*/
void loop() {
if(checkForCorrectCommand("{open_valve}") == true) {
open_valve();
Serial.println("OPENING");
getFlow();
}
else if(checkForCorrectCommand("{close_valve}") == true)
{
close_valve();
Serial.println("CLOSING");
}
}
bool checkForCorrectCommand(String cmd) {
//Serial.println(inputString);
//Serial.println(cmd);
if(inputString == cmd) {
// reset String variables for serial data commands
Serial.println("1");
inputString = "";
stringComplete = false;
return true;
// reset String variables for serial data commands
inputString = "";
stringComplete = false;
return false;
}
}
//SerialEvent occurs whenever a new data comes in the
//hardware serial RX. This routine is run between each
//time loop() runs, so using delay inside loop can delay
//response. Multiple bytes of data may be available.
void serialEvent() {
while(Serial.available()) {
// get the new byte:
char inChar = (char)Serial.read();
// add it to the inputString:
inputString += inChar;
// if the incoming character is a newline, set a flag
// so the main loop can do something about it:
if (inChar == '\n') {
stringComplete = true;
}
}
}