Build instructions
| Step | Instructions |
|---|---|
| 1 | Download the code file from https://www.khokharlab.com/open-source-file-downloads |
| 2 | Print the nozzles from https://www.khokharlab.com/open-source-file-downloads using a 3D printer |
| 3 | Attach the H-bridge to the breadboard |
| 4 | Wire the Arduino to the system with six “logic” cables, a power cable, and a ground |
| 5 | Connect the two terminals of each motor to the corresponding H-bridge pins (Fig. 2) |
| 6 | Insert two cables into the DC power jack (one for ground and one to power the motors) |
| 7 | Secure a charged and filled JUUL e-cigarette to each of the two motors with heat shrink |
| 8 | On the “out” ports of each motor, tightly heat shrink one end of an 8mm plastic tubes onto it |
| 9 | Heat shrink the 3D-printed nozzles onto the opposite ends of each 8-mm plastic tube and insert the nozzles into the drilled holes on the ends of each of the Allentown mouse cages |
| 10 | Plug the Arduino board into your computer and using the Arduino IDE, upload the appropriate code onto the board |
| 11 | Plug both the Arduino and the adjustable voltage supply into a receptacle. The cable to the Arduino will automatically supply the desired voltage to the board |
| 12 | Adjust the voltage supply to 6 V, and vapor clouds will appear at the specified intervals |