Your Belkin Wemo smart home device could stop working this week: Here's what to do about it
(www.androidauthority.com)
Yes. I used HiLetgo FT232RL Mini USB to TTL Serial Converter and jumper wires but given that's mini USB on one end you'd probably be better of with a more recent one. Also double check that the model you're using has something to flash onto it. It's been a while since I did any of this.