The deliverable is a digital output, that I can use without any further processing, to get a fully assembled PCB from a popular service like jlcpcb.com or pcbway.com.
As well, the module has to be compatible with the Arduino IDE, so I can flash my code from there.
The module has to contain:
-ESP32 chip with WIFI
-USB Port for powering the module and flashing ESP chip
-4 times: circuit to measure resistance (the module will be used to measure soil humidity by measuring resistance between two pieces of metal)
One Resistance Measurement Circuit contains:
-2 Screw terminals to connect measurement probe
-adjustable potentiometer to calibrate (0-100k)
-the result has to be passed to the ESP32 as an analog value