since the day that posted here, I found another thread for my specific sensor suggesting the use of uart setup and the low power serial mode.
AJ_SR04M is the exact model and here is my adventure on this.
At the end of the day I have a sensor that is working until the reboot of the ESP board! Then I have to disconnect either pin Tx/Rx of the sensor before commence working again!
It’s insane for me that I have no any coding background.