Backyard Splash Pad

Description

Motivation
- We wanted to obtain experience using OpenCV to do image processing
- Splash Pads at parks are crowded
- With kids it is not always easy to get out the door
- Having a Splash Pad in your backyard allows you to customize it
Features
- Routine that will randomly turn on and off the nozzles
- Phone app that can control the nozzles and light color
- Reaction to objects when they are over a nozzle

Connect a phone using Bluetooth Low Energy to control the nozzles and lights. Implemented using a TI CC2640R2 Microcontroller.
Use a camera to track an object and shoot it with water when it is over a nozzle. Implemented using a RaspberryPi Model 3B+ and camera.
Data is sent to a Teensy3.2, an Arduino based microcontroller, to control the nozzles and lights.
A Pressure transducer controls a pressure relief valve to help regulate the height of the water.

Lessons Learned
- During testing, we discovered that a better method for attaching the PVC pipe to the nozzles is needed.
- During software development, we discovered that the memory available on the CC2640R2 was slightly smaller than our needs. This led to us using the Teensy3.2 to handle the control tasks.
- During testing, we observed that the water flow wasn’t as laminar as desired.
- During testing, we observed that the LEDs were difficult to see in sunlight.
Safety
- Electrical Shock Hazard
  - There is at least 1MΩ resistance between power and ground
  - Connected to a Ground Fault Circuit Interrupter (GFCI) outlet
- Use Chlorine to make sure water is clean