Hello, I try to upload sketch on Arduino pro mini with usb-ttl hw-728 ch340, it's upload ok, if I press reset button on event 'uploading' in IDE But it's need to upload without press button, then I connect dtr pin hw-728 to rst pin arduino but nothing happen, sketch not uploading. Can anyone hel…

Upload sketch without reset button

juffin September 10, 2021, 4:24pm 3

yes, it have dtr. i connect it to rst arduino, but without capacitor

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