5. What Next?
At this point, we can branch out in numerous directions. Here are some possibilities:
Audio electronics
This is a field in itself, including hobby projects, such as simple amplifiers and “stomp boxes,” to modify guitar sound.
Radio-frequency devices
Anything that receives or transmits radio waves, from an ultra-simple AM radio to remote controllers.
Motors
The field of robotics has encouraged the growth of many online sites selling stepper motors, gear motors, synchronous motors, servo motors, and more.
Programmable microcontrollers
These are tiny computers on a single chip. You write a little program on your desktop computer, which will tell the chip to follow a series of procedures, such as receiving input from a sensor, waiting ...
