Well I think so. We designed it for the Adafruit HUZZAH32 but I think its compatible the Sparkfun ESP32 Fun Thing. It works as both anchor and tag. The anchor can track up to 10 tags. The pinouts for the Adafruit and Sparkfun board look the same. I wonder if Sparkfun could loan me one of those boards for testing. Check my website to see the boards. My company is Starcom Engineering. www.starcomeng.com.
Thanks
Ralph Sweitzer