Zero-wire serial auto-reset for Arduino

ProMiniAutoReset

A followup to the Modify an off-the-shelf CP2102 module as an Arduino programmer post, Ralph Doncaster writes:

Instead of modifying the USB-TTL adapters, I modified the AVR board and the avrdude software to reset the AVR with a break signal. This way just Rx, Tx, Gnd and Vcc are needed.

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