October 2025 Updates

Authors:

Geoffrey Hunter

Published On:

Oct 31, 2025

Last Updated:

Oct 31, 2025

Varistors

Added more info on varistors, including the internal structure of a MOV style varistor and how they work.

Added info on reed relays, a form of mechanical relay that uses a reed switch for the contacts.

Add info on the WCH CH340 family of USB to UART ICs.

Added info on uv, a popular tool for managing Python environments and dependencies.

Added info on board bring-up, a process of testing a new PCB to ensure it is working correctly.

Added info on SEGGER J-Link, a tool for programming and debugging ARM microcontrollers.

Added info on Single Pair Ethernet (SPE), a version of Ethernet which uses a single twisted pair.

Added info on how to reduce the capacitance of high power TVS diodes by adding general purpose diodes in series.