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On the ESP32 with adapter board that I ordered, pin IO5 is incorrectly labeled. The back was labeled twice with IO15. In the following picture I have marked the correct IO5.
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Since I am very enthusiastic about the first test results of the v4, I decided to create a v3.3. This version also gets the load switch like v4. The v3.3 should be for people who do not want or cannot solder SMT. Unfortunately, it does not work entirely without SMT, but is limited to 4 components.