# 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  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

#include <Wire.h>
#include <Adafruit_MPU6050.h>
#include <Adafruit_SSD1306.h>
#include <OneWire.h>
#include <DallasTemperature.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET    -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

Adafruit_MPU6050 mpu;

#define ONE_WIRE_BUS 15
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

const int buttonPin = 14;
volatile int steps = 0;
float last_x, last_y, last_z;
float threshold = 0.5;

void resetSteps() {
  steps = 0;
}

void setup() {
  pinMode(buttonPin, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(buttonPin), resetSteps, FALLING);
  
  if (!mpu.begin()) {
    while (1);
  }
  
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    while (1);
  }

  sensors.begin();
  display.clearDisplay();
  last_x = last_y = last_z = 0;
}

void loop() {
  sensors.requestTemperatures();
  float temperature = sensors.getTempCByIndex(0);

  sensors_event_t a, g, temp;
  mpu.getEvent(&a, &g, &temp);

  float x = a.acceleration.x;
  float y = a.acceleration.y;
  float z = a.acceleration.z;

  float movement = abs(x - last_x) + abs(y - last_y) + abs(z - last_z);

  if (movement > threshold) {
    steps++;
  }

  last_x = x;
  last_y = y;
  last_z = z;

  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(0, 0);
  display.print("Steps: ");
  display.print(steps);
  display.setCursor(0, 10);
  display.print("Temp: ");
  display.print(temperature);
  display.print(" C");
  display.display();

  delay(100);
}


sketch.ino

diagram.json

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

Adafruit MPU6050
OneWire
DallasTemperature
