Microcontrollers – Embedded
Reverse Engineering – Info and Tools
Security – Card Access
Links – Info and Suppliers
Electronics
https://en.wikipedia.org/wiki/Electronics
Norm Bachman II has been working with electronics since childhood. These base fundamentals of math and science helped later in life with computers and ham radio examinations.

Troubleshooting & Repair

Component level diagnostic troubleshooting and repair.
Sometimes simply replacing a few electronic components may allow the device to resume functioning and extend the useful life of the equipment. If cheap and fast replacement assemblies aren’t available then attempting component level electronic repair may be a cost effective solution. The results vary depending the complexity of the damage, the component mounting architecture, the availability and lead time for replacement components, and sometimes the quality and quantity of test and repair equipment.