10-04-2024, 12:40 AM
no, just weld the chip's pin, maybe don't have good contact.
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rs232 problem
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rs232 problem
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10-04-2024, 12:40 AM
no, just weld the chip's pin, maybe don't have good contact.
10-24-2024, 08:48 PM
I have check the continuity of the pin and there is continuity from esp pin to serial chip and from serial chip to db9.
10-24-2024, 11:49 PM
Use electric ferrochrome to re-solder the pins of chip U14:SP3232
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