Using the Plug and Go Shield, makers easily can plug in different sensors and actuators that are popular. For example from the 37 sensors kit.
One side has the ESP32-PICO-V4, and the other side has the OLED display, 3 programmable LED's and the sensor pads.
The shield has on both sides a 90' angle header with a specific pattern, so that is possible to connect a variety of sensors and actuators. If the connection is (S + -) or (- + S) or (S - +) the layout has these, and more options.
Besides the sensor headers, the shield already has LEDs that can be used directly. And sensor vp/vn pads.
The shield is to be soldered with SMD 0805 components, besides through hole headers.