Your last drawing looks correct for DTR - as long as you are using 100nF/0.1uF and not 100uF as your text describes.
You also need to swap Rx & Tx: CP2102 Tx goes to '328 Rx, and Rx to Tx.
Your last drawing looks correct for DTR - as long as you are using 100nF/0.1uF and not 100uF as your text describes.
You also need to swap Rx & Tx: CP2102 Tx goes to '328 Rx, and Rx to Tx.