2 layers99.1 × 72.4 mm

EspIO
zmeiresearch/EspIO
This is a simple carrier board for ESP32-DevKitC (30-pin version) that implements a number of I/O channels: - 8 Digital Inputs with protection and solder-time input range selection.
133 partsCC0-1.0
Boards in 1 GitHub repository, designed in KiCad, that use the BCR141 by TECH PUBLIC (1.2 100mA 200mW 250MHz 28.6kΩ 300mV@10mA,0.5mA 3V@5mA,0.2V 500mV@100uA,5V SOT-23 Digital Transistors ROHS). See how each wires it, with its parts, size, README and files; the BCR141’s symbol, footprint and pinout are on its own page.

zmeiresearch/EspIO
This is a simple carrier board for ESP32-DevKitC (30-pin version) that implements a number of I/O channels: - 8 Digital Inputs with protection and solder-time input range selection.