Fun with 74HC595 (Serial IN, Parallel OUT shift register) by Tech Arrange Posted on April 10, 2022April 10, 2022 | No Comments This is a very nice arrangement and although soldering a circuit without a PCB is beautiful, the oxidation and corrosion from the finger’s oily surface will mar it over time. Share this:PostLike this:Like Loading... Posted in Daily Catch, Electronics and tagged Electronics, LED.