Just a simple HC-SR04 (ultrasonic promixity sensor module for arduino projects) bracket i'm designing for an arduino autoflush solution. I drop the files in .scad for easy customization.

Just print the .stl if you're in a rush. no support. If you want, you can make the walls thinner by changing the variable "grosor" in the .scad file Also, if your module doesn't fit, dimensions are easily changable in the .scad file.

Attribution - Creative Commons

hcsr04, arduino, proximitysensor