You may be interested in the SparkFun Electronics TOL-18627.
For the cost of a pizza, you can get an 8-channel, 24 MHz logic analyzer as shown in Figure 1.
Be sure to review the SparkFun Tutorial.
Figure 1: Image of the SparkFun Electronics TOL-18627 logic analyzer.
Reverse engineering
One excellent way to learn about digital logic is to reverse engineer existing designs. The featured device is an open-source hardware and software design, available at sigrok.
Long live the 8051 microcontroller!
Note: This post is part of DigiKey’s celebration of engineering week. The question was selected from social media feeds.
About this author
Aaron Dahlen, LCDR USCG (Ret.), serves as an application engineer at DigiKey. He has a unique electronics and automation foundation built over a 27-year military career as a technician and engineer which was further enhanced by 12 years of teaching (interwoven). With an MSEE degree from Minnesota State University, Mankato, Dahlen has taught in an ABET-accredited EE program, served as the program coordinator for an EET program, and taught component-level repair to military electronics technicians. Dahlen has returned to his Northern Minnesota home and thoroughly enjoys researching and writing articles such as this.