MichaelB247

Sure! I don't use it a lot but I have used it successfully with the ESP-01 and an Atmega238. It's very minimal but seems to work just fine!

So far, it's been working for about 6 months or so and indoors so I cannot comment too much on the temps - though if it's made by the same guys as other CH340G USB chips, I'm sure it would be fine. V3 is actually the power pin in the case of ESP which needs 3.3V and VCC is unconnected in that case (just capacitor to GND). In the case of a 5V logic device, it reverses - VCC gets hooked up to 5V and V3 via capacitor to GND. I haven't used the RTS pin but I believe it would work the same way as other CH340G USB chips. So far I have only used this at 9600 and 115200 baud rates and it works fine there. Honestly, it cost me $4 to get 10 units so it's a pretty inexpensive investment to play around with. Hope this helps.

Yup :/ I have encountered this too and it's a pain. I will now only buy the Wemos units that have the logo.

Take a look at this: https://www.reddit.com/r/esp8266/comments/9itox8/s...See if your Wemos regulator might fall into one of those categories...