How to wire UNO (5v) and esp8266 (3.3v) for PJON communication

How to wire UNO (5v) and esp8266 (3.3v) for PJON communication. Note pull-down resistors of different values are required on every side of communication.

 

Communication over 1 wire, with error correction in compatibility mode:

Absolute com speed: 1867.20B/s
Practical bandwidth: 1556.00B/s
Packets sent: 778.00
Mistakes (error found with CRC) 0.00
Fail (no answer from receiver) 0
Busy (Channel is busy or affected by interference) 0
Accuracy: 100.00 %