Wiring module on a breadboard Members who have completed their line following robot will begin work on this at our January meeting.
IR Schematic Exercise - this exercise is designed to teach members the function of each component of the IR module.
Wiring module on a circuit board Members who have completed wiring this module on the breadboard will use these instructions to complete the module to be attached to the robot.
Parts list for robot and IR add-on. This is old list, new list soon.
How does an IR TV remote work? This lesson explores the infrared control codes sent to a TV by an IR remote. Members should read this lesson after the "Wiring module on breadboard" lesson
Digital Modulation - how is digital information sent through a wire or the air?
Members start this project after completing IR add-on board.
Crystal Radio Project - Lesson 1 Crystal Radio Project
Crystal Radio Project - Lesson 1a Winding the coils for Crystal Radio
Crystal Radio Project - Lesson 2 Crystal Radio Assembly
Crystal Radio Project - Lesson 3 Understanding and Operating your Crystal Radio. This lesson completes the Crystal Radio project (except amplifier). Please read this as you near completion of your radio.
As part of the Crystal Radio project, members will construct an audio amplifier for the crystal radio. The audio amplifier can also satisfy part of the requirements of the 4-H project book "Entering Electronics." The last activity in the "Entering Electronics" book is also an audio amplifier. Unfortunately, the integrated circuit specified in the activity is no longer available. Another IC chip, LM386, can be substituted for the obsolete chip, but requires a different circuit. Instructions for the audio amplifier with LM386 IC are available at the link below. Parts for completing the project are available from Mr. La Favre.
Audio Amplifier project This is old instructions for those working with kits distributed before March 2020
Audio Amplifier project NEW INSTRUCTIONS for kits distributed March 2020 and later
Parts list for radio and amplifier This is an old list. New one coming soon.
Last update: April 17, 2020