I am making an IoT Project involving an AI Thinker ESP32CAM and an ESP32-WROOM-DA (Module), the objective is waste classification using the cam and it sends the classification to the ESP32 Module which controls the servomotors for the sorting process. This is an automatic waste segregation, and I already have a trained model utilizing Edge Impulse platform. I already have a circuit, but my problem is that I don't know how make a two-way communication, I have tried it but failed many times already. Any idea what to do? Thanks!