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I seem to have figured out the issue getting the arduino mini to upload code, connect the CH340 to the mini like the picture, then remove the 9v battery from the mini, and the jumper from the CH340, now connect the VCC pins to each other.Set up like this I am able to upload code to the mini.
I also had issue with getting my PL2303 to work, your link fixed it, however it still has intermittent failure.
It seems my box is missing the TM1637 chip is there a way I can get one?
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