ESP8266 D1 Mini not receiving output

[philxws692]

Hey there,

I stumbled upon this great project and gave it a try.
I use a Wemos D1 Mini with the ESP8266 chipset as a controller, unfortunately I had to go through a little bit of trial and error because the desk I got, which is the Flexispot E6, with the HS17B-1 handset, was not confirmed to be working.
Nevertheless I somehow managed to get it sending commands to the desk and using my presets. However it does not receive any output from the controller, I already confirmed this by using the ESP_LOGD function from the desk_height_sensor.h.
For the RX Pin I tried using the RX Pin on the Wemos D1 Mini, and also tried using something like the D5, D6 Pins as described, but I can not get it to work.

Does anybody had similar experience, maybe also with the Flexispot E6?