# Welcome to The Bin! 🦝

Now that you've thrown some parts into The Bin, it's time to turn that trash into treasure! 🗑️➡️💎

Wire up your parts and write some code to make them work together. If you need
help with a part, click the "?" above it.

If you want to see examples, check here:
https://hack.club/bin-example

You can get help by chatting with other high schoolers on the Hack Club Slack in
the #electronics channel:
👉 https://hackclub.com/slack 👈

Once you're ready build your design IRL, click the "Share" button and submit
your design:
https://hack.club/bin-submit
    

help.md

#define DECODE_NEC
#include "DHT.h"
#include <LiquidCrystal.h>
#include <IRremote.hpp>


LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

#define DHT22_PIN 28
#define MOTION_PIN 27
#define LIGHTSENSE_PIN 26
#define BACKLIGHT_PIN 13
#define RECEIVER_PIN 6

DHT dht(DHT22_PIN, DHT22);


void setup() {
  lcd.begin(16,2);
  lcd.noBlink();
  lcd.noCursor();
  lcd.print("Temp (C): ");
  lcd.setCursor(0, 1);
  lcd.print("Humidity %: ");
  dht.begin();
  IrReceiver.begin(RECEIVER_PIN);

  pinMode(MOTION_PIN, INPUT);
  pinMode(BACKLIGHT_PIN, OUTPUT);
  pinMode(LIGHTSENSE_PIN, INPUT);
}

void loop() {
  delay(10); //For simulator
  if (digitalRead(LIGHTSENSE_PIN) == HIGH) {
    if (IrReceiver.decode()) {
    translateIR();
    IrReceiver.resume();  // Receive the next value
  } else {
    killdisplay();
  }
  } else {
  if (digitalRead(MOTION_PIN) == HIGH) {
    displaydata();
  } else if (IrReceiver.decode()) {
    translateIR();
    IrReceiver.resume();  // Receive the next value
  } else {
    killdisplay();
  } 
  }
}

void sensordata() {
  float hum = dht.readHumidity();
  float temp = dht.readTemperature();
  float heatindex = dht.computeHeatIndex(temp, hum);
  lcd.setCursor(10, 0); 
  lcd.print(temp);
  lcd.setCursor(12, 1); 
  lcd.print(hum);
}

void killdisplay() {
  lcd.noDisplay();
  digitalWrite(BACKLIGHT_PIN, LOW);
}

void translateIR() {
  switch (IrReceiver.decodedIRData.command) {
    case 162: //Power button
      displaydata();
      break;
    default:
      break;
  } }

void displaydata() {
  lcd.display();
  digitalWrite(BACKLIGHT_PIN, HIGH);
  sensordata();
  delay(10000); 
}

sketch.ino

diagram.json

# Wokwi Library List
# See https://docs.wokwi.com/guides/libraries

DHT sensor library
LiquidCrystal
IRremote
