PIR_LCD_keypad_sibling_alarm This letscodeblacksburg.org project is completed example code for "Sibling Detector" alarm to show how to integrate the PIR sensor, LCD/button shield and speaker/buzzer to make a motion activated alarm system. See code for hardware/software requirements.
LCBB_Sibling_Alarm.pdf Sibling Alarm Workshop PDF Handout containing step by step build directions and references to cookbook recipes, etc.
For individual example recipe code for PIR sensor and LCD-key shield, see: PIR Motion Sensor - https://github.com/LetsCodeBlacksburg/arduino-recipes/tree/master/PIR_sensor_blink LCD-keypad Shield - https://github.com/LetsCodeBlacksburg/arduino-recipes/tree/master/shields/lcd_keypad Master LCBB Cookbook - https://github.com/LetsCodeBlacksburg/arduino-recipes/blob/master/2016-07-11_LCBB_Arduino_Cookbook.pdf
All LCBB code and related materials are copy left (open sourced) under the Creative Commons (CC)(BY)(SA) License.