https://hackaday.com/2020/07/25/esp8266-makes-a-wireless-card-reader/
ESP8266 Makes A Wireless Card Reader
You can find commercial USB sticks that can also connect via WiFi. But [Neutrino] made his own using an ESP8266 married to a card reader. It all starts with the old trick of soldering a header to a…
hackaday.com
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