Water sensor for raspberry pi. Some code to monitor a basement floor or other area for water, alert and clear when the condition is corrected.

• copy waterpi.yaml to /etc
• edit it with your slack webhook if you want
• edit it with your sns topic so you can get SMS texts
• add some lines to /boot/config.txt (depends on pins you use for thermo)

# jgu for thermo DS18B20
dtoverlay=w1-gpio,gpiopin=27
dtparam=i2c_arm=on

• poll a physical sensor
• generate an alert when wet
• generate a clear when resolved
• call out to external script for sending SMS text or other commands
• control an led, flashing = program running and solid is alarm state

• alert and clear sh files are stubs. replace them with your actions
• water.py is a sample sensor
• water2.py is just another sensor
• one copy of the program runs per sensor for now, I'm lazy
• modify the sensor_name because its what spews to screen
• a few jpg's to show a sample display and sample sensor
• start_sensors.sh can be called from rc.local to start a screen session on boot
• send_slack.py uses waterpi.yaml, copy to /etc and edit the webhook
• mouse_trap.py has nothing to do with water alarms, but is connected to the same raspberry pi so it's in here

• Sample freeboard.io dashboard

• leds with resistors
• sensor plate and display panel
• b connectors for joining wire
• alarm wire
• jumper wires to pi
• premade sensor to copy from

• adapted from reading this page