JSN-SR04T R19 Resitor Values ?

[dagnolof]

Hi,

I can not find the value of R19 resistor to change the working mode of this sensor.

Can someone point me do a document where i can find these values please

Best regards,
Fabrizio

[JohnLincoln]

The JSN-SR40T datasheet tells you how to adjust R27 to change modes.

No mention is made of R19.

[dagnolof]

On my board it says R19.
Location is in the same area, R19 resistor orientation is horizontal.

Title of post is wrong, it should be AJ-SR04M, printed on the PCB, i corrected it.

I will try the resistor values specified in the datasheet .

Thanks you for datasheet

Regards,
Fabrizio

[dagnolof]

Here is the correct datasheet in case someone is searching for it.

Sensor is ok until 1200mm
For further distances he is way off.