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jlthev / smoke-detection-113

Compilation of code used in the ENGR113 First Year Design course.
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❖ Smoke Detection iRobot

The Following Program demonstrates a fully autonomous iRobot that can traverse a finite space until a gas particulate is detected.

❖ Requirements

  1. Software Requirements

    • iRobot edu sdk. The link provided has the library. iRobot® Education Python® SDK
    • Bluetooth Library (BLE): bleak
    • pySerial(Serialized Input to iRobot & RPi 3B+): pip install pyserial

  2. Hardware Requirements

❖ 3B+ Integration with irobot

Follow the tutorial on the create3 website to connect the PI to the robot. WIP

❖ BLE Connectivity

To run any .py script on the iRobot it must be connected by either Bluetooth, WI-Fi, or Serial. Setting up bluetooth is the easiest. Here is the way to connect to iRobot via Bluetooth using BLE.

  1. Identify the iRobot's
    • Bluetooth(address="#irobot BLE MAC address") <- Varies Heavily based on OS
    • If issues persists read the issues page on iRobot's github page

❖ 3D Modeling Gas Sensor Mounting

  1. Onshape Software
    • Version 1.0
      • Base platform for gas sensor (35mm x 24mm x 1mm).
      • Vertical beam perpendicular to the platform on the left edge (1mm x 24mm) extruded upward (9.532mm).
      • Horizontal beam perpendicular to vertical beam, and parallel with platform, on top of the vertical beam (2mm x 24mm x 1mm).
      • On the bottom of the base platform circle centered at (17.5mm x 12mm) with radius (1.375mm), extruded downward (20mm).
    • Version 2.0
      • Base platform for gas sensor (34mm x 24mm x 1mm).
      • Vertical beam perpendicular to the platform on the left edge (1mm x 24mm) extruded upward (9.532mm).
      • Horizontal beam perpendicular to vertical beam, and parallel with platform, on top of the vertical beam (2mm x 24mm x 1mm).
      • On the bottom of the base platform circle centered at (17.5mm x 12mm) with radius 1.375mm, extruded downward (20mm).
      • Front and back edges of base platform have perpendicularly joined walls (leveled with the base) measuring (35mm x 2mm) extruding outward (1mm)
    • Version 3.0 (Final Design)
      • Base platform for gas sensor (34mm x 20mm x 1mm).
      • Vertical beam perpendicular to the platform on the left edge (22mm x 8.2mm) extruded outward (1mm).
      • Horizontal beam perpendicular to left-edge vertical beam, and parallel with platform, on top of the vertical beam (22mm x 3mm x 1mm).
      • On the bottom of the base platform cylinder extrusion centered at (17mm x 10mm) with radius 1.375mm, extruded downward (10mm).
      • Front and back edges of base platform have perpendicularly joined walls (leveled with the base) measuring (34mm x 8mm) extruding outward (1mm)
      • Two cylinder extrusions, equidistant from the front and back beam, respectively, centered at (2.375mm) from the front and back beam, and (3mm) from the right edge, extruded upward (8.5mm).

❖ Development Stages

All files besides main.py show development files before the final script. Read below to learn more about each file

  1. bases.py
    • Commands iRobot to navigate to set points in a finite plane. Use this script to familiarize yourself with multithreaded python.