Good afternoon, cordial greetings forum members, I have a question... by chance, do you have a step-by-step guide, either in photos or videos, or in person, on how to configure an Arduino Mega R3 WiFi AVR ATmega 256016AU CH340 with Thingspeak, from the beginning, step by step?
Please do not hijack existing topics. Further your question does not indicate a problem with IDE 2.x and has therefore been moved to a more suitable location on the forum.
I have no idea if a complete guide exists. There are guides on the web how to work with that board but I have no idea if they include Thingspeak.
I have deleted your other cross-post @jhonetar.
Cross-posting and hijacking is against the Arduino forum rules. The reason is that duplicate posts can waste the time of the people trying to help. Someone might spend a lot of time investigating and writing a detailed answer on one topic, without knowing that someone else already did the same in the other topic.
Repeated rule violations can result in a suspension from the forum.
In the future, please only create one topic for each distinct subject matter. This is basic forum etiquette, as explained in the "How to get the best out of this forum" guide. It contains a lot of other useful information. Please read it.
Thanks in advance for your cooperation.