I'm using Arduino IoT Cloud with ESP32. Can I use this with ttgo tcall ESP32 + SIM800L board using GPRS connection? What to use in the wifi credentials part if we are not connecting to wifi? Sorry, I am a beginner..!

I need to convert a Ethernet-connected embedded project with wireless connection. I'm looking for a low-cost (main constraint, less than USD $15) and most open-source/-hardware possible Wi-Fi bridge module, like Vonets. It need to behave transparent, redirecting all network frames (transport layer) ...