Published November 28, 2023

Fitness Challenge

An easy-to-use system that counts how many pull-ups one can do in two minutes.

IntermediateFull instructions provided77

Things used in this project

Hardware components

ELEGOO 37-in-1 Sensor Module Kit V1.0

Jumper wires (generic)

Particle Photon 2

Ally Peaks DoorWay Pull Up Bar

ZipTies

Double Sided Tape

Piece of Cardboard

USB Cable, Mini USB Type B Plug

Computer

Software apps and online services

Particle Build Web IDE

Google Sheets

Hand tools and fabrication machines

Scissor, Electrician

Wire Stripper & Cutter, 18-10 AWG / 0.75-4mm² Capacity Wires

Story

Are you on track to a healthier lifestyle? Do you run a busy schedule that prevents you from going to the gym? Do you wish that part of your at home workout could hold you a little bit more honest? Well this is a story about Vincent Arthur and CJ Roberts who wanted to accomplish these questions while staying on a budget. Our problem? We wanted to improve our pull up reps while not having to take the time to go all the way to the gym. Then, we wanted a way to keep track of our continual improvement. This is where the idea for our IOT project came from, a doorway pull up bar that could count the number of pull ups you would do in a minute. Our device easily keeps track of the number of pullups you did in a minute so that you can look back over time and see the progress of how many pull-ups you were able to do. Our device also keeps you “honest”, only tracking the pull ups where you actually reach the sensor. This project is cost effective, with the most expensive part being the doorway pull up bar itself. It is easy to use as all you have to do is trigger the IR emitter to the receiver and then do your pull ups while everything else is done automatically. It is an at-home workout tool, so there is no travel required, and who does not want to strive to improve the amount of pull-ups they can do? This solution is unique in that you do not have to keep count yourself, it is an easy way to keep track of how many reps you're doing, and it is always available for you to use. Our newly acquired IOT skills are allowing us to create this solution by, instead of having one large circuit driven by an even larger code, we are able to break it down into two small parts, one that detects when you want to start, and one that counts the honest pull ups that you do. Our system creates an easy to use, cost effective way to bring fitness into the homes of millions of people.

Pictures:

Assembly not on doorway (side).

Assembly not on doorway (front).

Wiring for motion sensor.

Wiring for IR sensors.

Another view of IR wiring.

Assembled on doorway.

Another view of assembly on doorway.

Back view of assembly.

Someone on the bar with assembly.

Flow Chart:

AdaFruit Graph:

Graph showing progression. Every data point is how many pull ups done in 1 session.

This keeps track of how many done in a session and when it occured.

https://io.adafruit.com/PullUpBarChallenge/feeds/adapullupcounter

This graph shows every time you active the IR sensor the maximum count of pull ups and when they occure. So you can can keep track of your improvement.

A Video demonstration and explanation can be found at:

Code

// Pins for IR emitter and receiver
const int irEmitterPin = D2;
const int irReceiverPin = D3;

// Timer to start ultrasonic sensor 5 seconds after IR detection
Timer startUltrasonicTimer(5000, startUltrasonic);

void setup() {
  // Initialize Serial communication
  Serial.begin(9600);

  // Initialize pins for IR emitter and receiver
  pinMode(irEmitterPin, OUTPUT);
  pinMode(irReceiverPin, INPUT);

  // Attach interrupt for IR detection
  attachInterrupt(irReceiverPin, irDetectHandler, FALLING);

  // Subscribe to the start ultrasonic event
}

void loop() {
  // Main loop - nothing to do here
}

// Function to start ultrasonic sensor 5 seconds after IR detection
void irDetectHandler() {
  Serial.println("IR Detected!");
  startUltrasonicTimer.start();
}

// Function to start the ultrasonic sensor
void startUltrasonic() {
  Serial.println("Starting Ultrasonic Sensor!");
  startUltrasonicTimer.stop();
  // Publish an event to start the ultrasonic sensor on the other device
  Particle.publish("startDetectionEvent", "VAPhoton2", PRIVATE);
}

// Handler for the start ultrasonic event on the other device
void startUltrasonicHandler(const char *event, const char *data) {
  startUltrasonic();
}

#include <Particle.h>

// Pin for PIR Motion Sensor
const int pirPin = D3;

// Timer to stop detection after a 1-minute duration
Timer stopDetectionTimer(60000, stopDetection);

// Flag to indicate if the motion detection is active
bool motionDetectionActive = false;

// Flag to indicate if the detection count has been published
bool countPublished = false;

// Variable to count detections
volatile int detectionCount = 0;

void setup() {
  // Initialize Serial communication
  Serial.begin(9600);

  // Initialize pin for PIR Motion Sensor
  pinMode(pirPin, INPUT);

  // Subscribe to the start detection event from IT_Worked
  Particle.subscribe("startDetectionEvent", startDetectionHandler, "IT_Worked");
}

void loop() {
  if (motionDetectionActive && !countPublished) {
    // Check if motion is detected
    if (digitalRead(pirPin) == HIGH) {
      // Increment the detection count
      detectionCount++;
      Serial.println("Motion Detected!");
      delay(2000); // Adjust this delay based on your sensor's characteristics
    }
  }
}

// Function to start motion detection
void startDetection() {
  Serial.println("Motion Detection Started!");
  motionDetectionActive = true;
  countPublished = false; // Reset the flag
  detectionCount = 0; // Reset the detection count
  // Start the timer to stop detection after a 1-minute duration
  stopDetectionTimer.start();
}

// Function to stop motion detection
void stopDetection() {
  Serial.println("Motion Detection Stopped!");
  motionDetectionActive = false;

  // Check if the count has not been published yet
  if (!countPublished) {
    // Publish the total detection count
    Particle.publish("detectionCountEvent1", String(detectionCount), PRIVATE);
    countPublished = true; // Set the flag to indicate that the count has been published
  }
}

// Handler for the start detection event from IT_Worked
void startDetectionHandler(const char *event, const char *data) {
  startDetection();
}

Credits

Vincent Arthur

1 project • 0 followers

Cj Roberts

1 project • 0 followers

Fitness Challenge

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

Circuit Diagram for Circuit Board A & B

Code

IR Trigger Code

Motion Sensor Code

Credits

Vincent Arthur

Cj Roberts

Comments

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Fitness Challenge

Fitness Challenge

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

Circuit Diagram for Circuit Board A & B

Code

IR Trigger Code

Motion Sensor Code

Credits

Vincent Arthur

Cj Roberts

Comments

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