Esp32.net has a bunch of additional references, projects, and places to gather information. Source: almost 3 years ago
Closest thing is the ESP32 from Espressif Systems See ESP32 link for details. Since you specifically asked for open source, so some tinkering and compile is required. Source: almost 3 years ago
There's also many more dev boards, chips and modules listed here, though they may not necessarily have platformio IDs. Source: about 3 years ago
Do you know an article comparing esp32 to other products?
Suggest a link to a post with product alternatives.
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