The Serial TTL connector we deserve
Summary
The article argues for a cleaner TTL serial connection approach for embedded devices by introducing Julet connectors as a standard to replace messy Dupont wires. It covers safety, wiring conventions, voltage levels (3.3V vs 5V), cross-wiring RX/TX, and future expansion with higher-pin variants, highlighting practical hardware considerations for homelabs and OpenWrt/OpenWrt-like devices.