GEAR - Geauga Engineering and Robotics
header graphic

Lessons for First Year Seniors

Lesson 1 - electricity - This is the first lesson for first year senior members. It incorporates activities from level 3 of Junk Drawer Robotics, Module 1: Circuit Training (Activity A - Series/Parallel). Members will build series and parallel circuits using batteries and light bulbs. This will lay a foundation for Ohm's Law, which will be explored in more depth in Lesson 4.

Lesson 1 - Using a Multimeter - This paper covers methods for making measurements with a multimeter. Please note that the meter pictured in this lesson is no longer used by GEAR (we now have Fluke meters).

Lesson 1 - engineering holiday lights - This paper covers an aspect of series and parallel circuits at an advanced level. In addition, there is an advanced treatment of incandescent light bulbs. Consider this material supplemental to Lesson 1.

Lesson 1 - Atoms and Materials for Engineering - this paper covers atoms, the periodic table of elements and various aspects of materials as they relate to engineering. Consider this material supplemental to Lesson 1.

Lesson 2 - switches This lesson incorporates activities from level 3 of Junk Drawer Robotics, Module 1: Circuit Training (Activity B - Off and On). Members will build circuits containing switches in various configurations.

Lesson 3 - direction of current flow This lesson incorporates activities from level 3 of Junk Drawer Robotics, Module 1 (Activity C - Direction of Flow, Activity D - Forward and Reverse Design Team, Activity E - Forward and Reverse Build Team). Members will build circuits containing DC motors and LEDs to explore direction of current flow.

Lesson 3 - LEDs - this is a supplement to Lesson 3 that describes some properties of LEDs and how to protect an LED with a voltage-dropping resistor

Lesson 3 - LED data sheet - to accompany the LED paper

Lesson 4 - resistors - this lesson covers resistors, including series and parallel circuits.

Line following robot

Lesson 1, power circuit

Data sheet for red LED used in this lesson.

Data sheet for switch used in this lesson.

Lesson 2, variable resistors

Data sheet for photoresistors used in this lesson.

Data sheet for R3 potentiometer used in this lesson. This data sheet covers several types. The one we are using is PV36W with drawings on pages 67 and 69 of the data sheet. This is a 25 turn pot, which means you must turn the screw 25 turns to achieve the full range of resistance adjustments possible.

Resistor exercise This exercise is designed to help members understand the photoresistor circuit.

Lesson 3, voltage comparator

Data sheet for LM393 IC chip used in this lesson.

Data sheet for green LED used in this lesson.

Data sheet for yellow LED used in this lesson.

Lesson 4, transistors

Data sheet for transistors used in this lesson.

Lesson 5, DC Motors This is the last lesson for breadboard wiring. After this you will learn to solder and start building your real robot!

Data sheet for Schottky diode used in this lesson.

Data sheet for motor used in this lesson.

Another data sheet for motor used in this lesson.

And a third data sheet for motor used in this lesson.

Manufacture of a magnet Here is a nice video covering a manufacturing process for permanent magnets

Lesson 6, Assembly of printed circuit board

Schematic of breadboard circuits (except power circuit)

The lessons above will prepare our members to build Sandwich, a line following robot, found in the book "Robot Building for Beginners" by David Cook.

Parts List This document provides the parts list for the robot.

Wheel for robot This is a mechanical drawing for 3D printed wheel. Use a square cross section O-ring for tire (McMaster-Carr part number 4061T251. McMaster-Carr)

Mechanical Drawings of Robot Frame

Top View

Side View

Back View

Front View

Isometric View

Another Isometric View

If you would like to see this robot in action, there are several videos on YouTube.
Here is one
Here is a web page about the robot.

 

back to home page

 

Last update: February 7, 2019