containsmachine

esp8266 burner

 
Overview
1. The high and low levels of the pins are different, and the modes are also different.
2. The resistors used to pull high and low are all 10k.
3. The usb to serial chip uses ch340g. This chip has a built-in crystal oscillator.
参考设计图片
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Update:2024-11-24 21:13:40

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