Odor Terminator
This is the Odor Terminator, using photocells to detect. The brain of this machine is controlled by an Arduino Leonardo. As soon as you sit on the toilet and leave, the timer starts for ten minutes. From 0 to 3 minutes, the red light is on (smelly), from 3 to 6 minutes, the yellow light is on (bearable), and from 6 to 10 minutes, the green light is on (not smelly)
Supplies
Some jumper wires
2 photocells
corrugated plastic board
Arduino Leonardo
hot glue gun
breadboard
red LED yellow LED
green LED
resistors
Circuit and Program
The first photocell is connected to analog input A0.
The second photocell is connected to analog input A1.
The red LED is connected to digital output 9.
The yellow LED is connected to digital output 10.
The green LED is connected to digital output 11."
Code
Due to different environments, the value of the photocell may need to be adjusted accordingly.
Downloads
Assembly Appearance
Use corrugated plastic to make two 18x17 cm boards, two 17x10 cm boards, and two 18x10 cm boards. Then use a hot glue gun to stick them together. four 11*6 cm boards two 4*6 cm boards