Sensor Tank Frame

Screw the standoffs to the underside of the frame as shown here using M2.5 x 12mm screws.

Sensor Cover

Press the sensor into the cover as shown.

Secure Cover

Secure the cover to the frame using the M2.5 x 6mm screws.

Wiring Harness

Use a 12" length of four-position ribbon cable and a female header to create a cable connector for the ultrasonic sensor. The other end will be screwed into the terminal block.

You can use some markers to color code them, and heat shrink tubing to neaten it up.

Screws & Feet

Screw the wires into the terminal blocks as shown to connect:

• Sensor VCC pin to Feather A2 (we'll use as switchable power source)
• Sensor GND pin to Feather GND
• Sensor TRIG pin to Feather A0
• Sensor ECHO pin to Feather A1 

Push the feet up through the case base holes. (Seen here on a ferrous base plate.)

Feed the cable through the side slot, then place the Terminal Block FeatherWing onto the screws as shown.

Standoffs

Thread the stacked standoffs onto the feet screws to secure the Feather in place and to provide fasteners for the case top.

Battery

Feed the battery cable through the case top.

Then, plug the battery into the Feather's JST connector.

Slide the battery ever so satisfyingly into the battery holder.

Cap It

Press the battery cap into place.

Topper

Screw the top into place with the four M2.5 x 12mm screws.

Wire It

Plug in the sensor cable as shown, with the GND on the left in this orientation.