Apparently, this user prefers to keep an air of mystery about them.
21 Why are relays so frequently driven by optocouplers? feb 27 '13
9 Why so many pins for the MOSFET's drain? may 24 '12
6 Example projects, programming and debugging tools to work with Elan EM78 series microcontrollers may 11 '12
6 Can you clarify what an 1NO1NC switch is? apr 30 '12
5 Reducing the sensitivity of a PIR sensor? may 1 '12
5 Are there any differences between clamp, twist-on, and crimp coax connectors outside of cost and ease of assembly? feb 25 '13
5 Best package for heat sinking? nov 18 '10