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Failed to download esp32 program, prompting timeout

2022-04-23 08:56:00 【Wang Xiaoqi next door】

One 、 Here's the picture , Program download failed
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Two 、 Circuit diagram
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Cause analysis , Because of my IO_2 As ADC Feet , There is a potentiometer outside , The voltage range is 0-3.3V, But when downloading the program , Must ensure IO_2 Low level , So there will be a situation that the program can't be downloaded , take IO_2 Pull it down , There is no case of program download failure .

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https://yzsam.com/2022/04/202204230810281558.html

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