Boolean stuck on true, toilet occupancy(help)

Projects General Guidance
13

A simple auto-reformat (ctrl-T) by the IDE makes this code a lot more readable:

#include <RH_ASK.h>
#include <SPI.h>
RH_ASK driver;
boolean check = true;
int buttonState = 0;
const int buttonPin = 2;
int PIR = 7;
void setup() {
  // put your setup code here, to run once:
  pinMode(13, OUTPUT);
  pinMode(buttonPin, INPUT);
  digitalWrite(buttonPin, LOW);
  pinMode (PIR, INPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(13, check);
  buttonState = digitalRead(buttonPin);
  int sense = digitalRead(PIR);
  if (buttonState == LOW) {
    check = false;
  }
  else if (buttonState == HIGH) {
    if (check == true) {
      ;
    }
    else if (sense == HIGH) {
      check = true;
    }
  }
  Serial.println(sense);

  if ( check == true) {
    const char *msg = "a";
    driver.send((uint8_t *)msg, strlen(msg));
    driver.waitPacketSent();
    Serial.println("yay");
  }
}

That's some oddly nested if/else statement set indeed. Are you sure this is what you want to do?

Reading the screenshot, it seems like your code freezes the moment sense becomes 1 aka HIGH. When this happens, and buttonPin is HIGH (button not pressed?), check is set to true and the last block of your loop() is entered:

  if ( check == true) {
    const char *msg = "a";
    driver.send((uint8_t *)msg, strlen(msg));
    driver.waitPacketSent();
    Serial.println("yay");
  }

So my money is on the problem being related to whatever this "driver" is doing.