[gh02t]

Yeah, important to remember that the old Wifi module for the Arduino was like 20-30 bucks and was basically just an AT modem that still needed a host Arduino. Barely anybody ever used them that I saw. The original ESP-01 for a couple bucks was a very exciting product for hobbyists just as a serial-to-wifi adapter even with minimal English documentation, and then it went bonkers when they released Arduino support and a package with enough IO to do useful things. Espressif has also been pretty nice to the hobbyist community in general once they realized what they had done.