A while ago (about 2019 - grin) I got a few Wemos ESP8266 and used them to monitor my hot tubs temperature, they worked great and were happy.
I ordered some new ones last week with a new set of DS18b20 probes and some new SSD1315 OLEDs to build more......
My problem is right now I can't see the Wemos when they're plugged in to my computers, the USB to serial drivers are unhappy.
I've tried 4 different PC's from old WIn7 to Win10 tables and old Tecra laptops and no joy, I do use the laptop's to program ham radios with Chirp so I know they work(ed).
I've installed SPARKFUNS CH340 driver and some older USB ones and still nothing and swapped out various cables - I have two Wemos units here now that are from before
and plugged in to the PC they both power up happy but I can't program them or update the firmware.
Now it has been a while since I used these - but I'm pretty sure you can just plug Esp8266 D1 Mini Pro's in to any USB serial port with a micro USB to USB A cable and see and flash them.
I'm at a loss ..... am I missing something? I don't recall using a ModeMCU before so I don't think that's the problem. For now I go with: "there child-proof!"

Cheers'
Dave