ESP32 38-Pin Screw Terminal Adapter – Breakout Board for 0.9in ESP32

A screw terminal adapter is a carrier board that an ESP32 board plugs into, with every pin brought out to a labelled screw terminal, so sensors, relays and power leads screw down firmly instead of hanging off jumper wires. This one takes a 38-pin ESP32 board and comes assembled, with both terminal blocks and all four socket strips soldered on, and four corner holes let you mount the whole build in a project box with M3 screws or standoffs.

Use it for ESPHome and Home Assistant builds that stay wired up for years, relay modules, DS18B20 probes and switches with screw-down leads, or an ESP32 you want to swap out without undoing any wiring. It fits 38-pin boards whose header rows are 0.9in (22.9mm) apart, such as our 38-pin ESP32 board, and a second socket row each side takes wider boards with 1.1in or 1.3in rows. It does not fit our 30-pin ESP32 board, which has 15 pins a side on 1.0in rows, so choose the 38-pin board if you want screw terminals. The adapter has no regulator or other parts, so power and 3.3V logic work exactly as on the ESP32 board itself.