Raymond JacobsJamie Bailey
Published

Turn Your Raspberry Pi into a Hamster Fitness Tracker

Have you ever wondered just how much your hamster runs throughout the day/night? How far? How fast? The results are unbelievable.

Full instructions provided935
Turn Your Raspberry Pi into a Hamster Fitness Tracker

Things used in this project

Hardware components

Raspberry Pi 1 Model B+
Raspberry Pi 1 Model B+
Connected to the internet, or your single-board computer of choice
×1
Laser break beam sensor
×1
Breadboard (generic)
Breadboard (generic)
For wiring up a simple circuit, such as the one found in the Adafruit Pi starter kit
×1
LED (generic)
LED (generic)
Optional, also found in the Adafruit Pi starter kit
×1
Resistor 221 ohm
Resistor 221 ohm
×1
Resistor 10k ohm
Resistor 10k ohm
×1
Hamster cage
with a running wheel that is outside the main living area, to avoid ever shining a laser into your hamster's eyes.
×1
Hamster
×1

Story

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Code

code.txt

C/C++
import RPi.GPIO as GPIO
import time
import datetime
import math
from ISStreamer.Streamer import Streamer
streamer = Streamer("Hamster Fitness Tracker", client_key="PUT YOUR CLIENT KEY HERE")
streamer.log("ZooZoo Says","")
 
# Setup Pins
pinNumLaserBreak = 18
pinNumLED = 4
GPIO.setmode(GPIO.BCM) # numbering scheme that corresponds to breakout board and pin layout
GPIO.setup(pinNumLaserBreak,GPIO.IN)
GPIO.setup(pinNumLED,GPIO.OUT)
 
# Setup Constants
diameter = 13 # inches
circumference = diameter * math.pi * 0.0000157828283 # miles
distanceTotal = 0
timeNoActivity = 5 # seconds
 
speed = 0
lastTime = datetime.datetime.now()
while True:
  input = GPIO.input(pinNumLaserBreak)
  if not input:
    if speed == 0:
      streamer.log("ZooZoo Says", "It's time to get pumped")
 
    # Calculate stuff
    thisTime = datetime.datetime.now()
    timeDiff = (thisTime-lastTime).total_seconds()
    speed = circumference/(timeDiff/3600) # miles per hour
 
    # Log stuff
    streamer.log("Full Rotation", "1")
    if speed < 5: # Filter out glitches (rocking on the sensor)
       distanceTotal += circumference
       streamer.log("Speed(mph)", speed)
       streamer.log("Total Distance(miles)", distanceTotal)
 
    GPIO.output(pinNumLED,GPIO.HIGH) # Turn LED on for visual cue that everthing is working
    lastTime = thisTime
 
    # Wait for sensor break to clear
    input = GPIO.input(pinNumLaserBreak)
    while not input:
      input = GPIO.input(pinNumLaserBreak) 
      time.sleep(.05)
  else:
    if speed > 0:
      thisTime = datetime.datetime.now()
      timeDiff = (thisTime-lastTime).total_seconds()
 
      # Reset the speed to 0 if no activity (for log visualization)
      if timeDiff > timeNoActivity:
        speed = 0
        # Log stuff
        streamer.log("ZooZoo Says", "I need a rest")
        streamer.log("Speed(mph)", speed)
        streamer.flush()
 
    GPIO.output(pinNumLED,GPIO.LOW) # Turn LED off for visual cue that everthing is working

Credits

Raymond Jacobs

Raymond Jacobs

4 projects • 2 followers
Co-Founder of Initial State
Jamie Bailey

Jamie Bailey

2 projects • 3 followers
Founder / CEO Initial State

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