Trouble measuring distance


I tried both of them, and Eagle made just more sense to me and was easier to learn to work with.



I have not tried the latest versions of Eagle but it looks much improved over older versions.

KiCad does all I need for free.


I already had a license for Eagle to begin with, so it didn’t cost anything for me either :slight_smile:

I’m not familiar with the older versions, but the interface of Eagle reminds me of some non-related software I used a lot in the past.


Sorry for bumping up an old question but I’m in the same boat of requirement.

And to my surprise there are quite a few new sensors in town:

This one has 2 transducers instead of 1 therefore has less minimum detection distance as compared to JSN SR04T. It is also completely sealed and waterproof.

Before finalizing on this I had bought another one which was a waterproof modified version of HC-SR04 from here

The 1st one is much more rugged and waterproof as compared to the latter one.


I believe the product in link 1 features the exact same transducer as the SR04T? It’s probably just a very slight modification.Over time, two things I found useful about the JSN-SR04T:

(1) The transducer has a silicone rubber that makes it very easy to mount on a surface and keeps it in place.
(2) Since it’s such a widely used product, the manufacturer could do some minor customizations for us, e.g. a much shorter cable (20cm) to make everything fit in a small enclosure.


Well the product in link 1 is completely sealed and also has 2 mounting screws on either sides. My main reason for using product in link 1 is that it has 2 transducers instead of 1 therefore reduces the blind/minimum distance to 3cm as opposed to JSN-SR04T’s 20cm. The ebay description also has the arduino code for the sensor. Just thought of sharing for future readers. Nothing else :smiley:


After searching for some more time, I found the exact sensor for this. It is specially customized for trash can measurement using ultrasonic sensors. It uses the same JSN SR04T transducer/probe but with a better board.


Apart from that,

I also found another crazy sensor ( which had upto 12 probes/transducers/sensors with 1 board but I believe that is more suitable for robotics, like I suppose using 12 transducers to sense objects in all different directions. Pretty cool and cost saving and power saving too. Makes programming much easier. Not building a robot as of now so just would opt for 4 probes as of now :sweat_smile: