ESP8266 Community Forum

jeffas wrote:Yes, I know the ESP won't like 5v, but I welcome being reminded!

That 5V bit is part of my signature and was not directed at you directly.

I see two options: either you modify the break out board in such a way that VCC (pin 1 of the IC) is connected to 5V and VDD (pin 16 of the IC) to 3.3V: this way your data levels will be at 3.3V.
Or you use a level shifter like the ones you're proposing (I've used them for I2C communication in the past): it *should* work perfectly (although I haven't got any experience with the HX711 myself).

Thanks! I'll be trying this again when my replacement logic shifters arrive. Electronics tip of the day from jeffas: Don't reverse the polarity on a logic shifter that doesn't have reverse polarity protection (doh!).