{"id":1591,"date":"2018-05-24T13:24:04","date_gmt":"2018-05-24T20:24:04","guid":{"rendered":"http:\/\/www.donluc.com\/?p=1591"},"modified":"2018-05-24T13:24:04","modified_gmt":"2018-05-24T20:24:04","slug":"project-7-rgb-lcd-shield-pir-motion-sensor-mk03","status":"publish","type":"post","link":"https:\/\/www.donluc.com\/?p=1591","title":{"rendered":"Project #7: RGB LCD Shield \u2013 PIR Motion Sensor – Mk03"},"content":{"rendered":"

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https:\/\/www.donluc.com\/wp-content\/uploads\/2018\/05\/DonLuc1805Mk07.mp4<\/a><\/video><\/div>\n

PIR Motion Sensor<\/strong><\/p>\n

This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the \u2018alarm\u2019 pin will go low.<\/p>\n

This unit works great from 5 to 12V (datasheet shows 12V). You can also install a jumper wire past the 5V regulator on board to make this unit work at 3.3V. Sensor uses 1.6mA@3.3V.<\/p>\n

The alarm pin is an open collector meaning you will need a pull up resistor on the alarm pin. The open drain setup allows multiple motion sensors to be connected on a single input pin. If any of the motion sensors go off, the input pin will be pulled low.<\/p>\n

We\u2019ve finally updated the connector! Gone is the old \u201codd\u201d connector, now you will find a common 3-pin JST! This makes the PIR Sensor much more accessible for whatever your project may need. Red = Power, White = Ground, and Black = Alarm.<\/p>\n

Buzzer<\/strong><\/p>\n

This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces.<\/p>\n

This is not a true piezoelectric speaker but behaves similarly. Instead of a piezoelectric crystal that vibrates with an electric current, this tiny speaker uses an electromagnet to drive a thin metal sheet. That means you need to use some form of alternating current to get sound. The good news is that this speaker is tuned to respond best with a square wave (e.g. from a microcontroller).<\/p>\n

LED<\/strong><\/p>\n

LED Yellow
\nLED Green<\/p>\n

DonLuc1805Mk07<\/strong><\/p>\n

1 x RGB LCD Shield 16\u00d72 Character Display
\n1 x Arduino UNO – R3
\n1 x ProtoScrewShield
\n1 x PIR Motion Sensor
\n1 x Buzzer
\n1 x LED Yellow
\n1 x LED Green
\n2 x Jumper Wires 2″ M\/F
\n4 x Jumper Wires 3″ M\/M
\n5 x Jumper Wires 6″ M\/M
\n1 x Half-Size Breadboard<\/p>\n

Arduino UNO<\/strong><\/p>\n

JST – Digital 6
\nBUZ – Digital 2
\nLEY – Digital 1
\nLEG – Digital 0
\nVIN – +5V
\nGND – GND<\/p>\n

DonLuc1805Mk07a.ino<\/strong><\/p>\n

\r\n\/\/ ***** Don Luc *****\r\n\/\/ Software Version Information\r\n\/\/ Project #7: RGB LCD Shield \u2013 PIR Motion Sensor - Mk03\r\n\/\/ 5-3.01\r\n\/\/ DonLuc1804Mk07 5-3.01\r\n\/\/ RGB LCD Shield\r\n\/\/ PIR Motion Sensor (JST}\r\n\r\n\/\/ include the library code:\r\n#include <Adafruit_MCP23017.h>\r\n#include <Adafruit_RGBLCDShield.h>\r\n\r\nAdafruit_RGBLCDShield RGBLCDShield = Adafruit_RGBLCDShield();\r\n#define GREEN 0x2\r\n\r\n\/\/ PIR Motion Sensor (JST}\r\nconst int buz = 6;          \/\/ Buzzer\r\nconst int MOTION_PIN = 2;   \/\/ Pin connected to motion detector\r\nconst int LED_Yellow = 1;   \/\/ LED Yellow\r\nconst int LED_Green = 0;    \/\/ LED Green\r\n\r\nvoid loop() {\r\n\r\n  \/\/ PIR Motion Sensor (JST}\r\n  isJST();\r\n\r\n  delay(1000);\r\n  \r\n  \/\/ Clear\r\n  RGBLCDShield.clear();\r\n  \r\n}\r\n<\/pre>\n
getJST.ino<\/strong><\/p>\n
\r\nvoid isJST(){\r\n  \r\n  int proximity = digitalRead(MOTION_PIN);   \/\/ PIR Motion Sensor\r\n  \r\n  if (proximity == LOW) \/\/ If the sensor's output goes low, motion is detected\r\n  {\r\n\r\n    \/\/ Motion Detected\r\n    digitalWrite(buz, HIGH);         \/\/ Buzzer High\r\n    digitalWrite(LED_Yellow, HIGH);  \/\/ LED Yellow High\r\n    digitalWrite(LED_Green, LOW);    \/\/ LED Green Low\r\n    \r\n    \/\/ Display\r\n    \/\/ Set the cursor to column 0, line 0  \r\n    RGBLCDShield.setCursor(0,0);\r\n    RGBLCDShield.print("Motion Detected!");   \/\/ Motion Detected!\r\n    \/\/ Set the cursor to column 0, line 1\r\n    RGBLCDShield.setCursor(0, 1);\r\n    RGBLCDShield.print("Buzzer On - Yel");     \/\/ Buzzer On\r\n   \r\n  }\r\n  else\r\n  {\r\n\r\n    \/\/ Motion Off\r\n    digitalWrite(buz, LOW);         \/\/ Buzzer Low\r\n    digitalWrite(LED_Yellow, LOW);  \/\/ LED Yellow Low\r\n    digitalWrite(LED_Green, HIGH);  \/\/ LED Green High\r\n    \r\n    \/\/ Display\r\n    \/\/ Set the cursor to column 0, line 0  \r\n    RGBLCDShield.setCursor(0,0);\r\n    RGBLCDShield.print("Motion Off!");        \/\/ Motion Off!\r\n    \/\/ Set the cursor to column 0, line 1\r\n    RGBLCDShield.setCursor(0, 1);\r\n    RGBLCDShield.print("Buzzer Off - Gr");    \/\/ "Buzzer Off\r\n          \r\n  }\r\n  \r\n}\r\n<\/pre>\n
setup.ino<\/strong><\/p>\n
\r\nvoid setup() {\r\n\r\n  \/\/ set up the LCD's number of columns and rows: \r\n  RGBLCDShield.begin(16, 2);\r\n  RGBLCDShield.setBacklight(GREEN);\r\n  \r\n  \/\/ Display\r\n  \/\/ Set the cursor to column 0, line 0  \r\n  RGBLCDShield.setCursor(0,0);  \r\n  RGBLCDShield.print("Don Luc");         \/\/ Don luc\r\n  \/\/ Set the cursor to column 0, line 1\r\n  RGBLCDShield.setCursor(0, 1);\r\n  RGBLCDShield.print("Motion Sensor");   \/\/ Motion Sensor\r\n\r\n  delay(5000);\r\n\r\n  \/\/ Clear\r\n  RGBLCDShield.clear();\r\n  \r\n  \/\/ PIR Motion Sensor (JST}\r\n  pinMode(buz, OUTPUT);                \/\/ Buzzer\r\n  pinMode(MOTION_PIN, INPUT_PULLUP);   \/\/ PIR Motion Sensor\r\n  pinMode(LED_Yellow, OUTPUT);         \/\/ LED Yellow\r\n  pinMode(LED_Green, OUTPUT);          \/\/ LED Green  \r\n      \r\n}\r\n<\/pre>\n
Don Luc<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
PIR Motion Sensor This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the \u2018alarm\u2019 pin will go low. This unit works great from 5 to 12V (datasheet shows 12V). You can also … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71,47,50,38,59,5,58,10],"tags":[],"class_list":["post-1591","post","type-post","status-publish","format-standard","hentry","category-rgb-lcd-shield","category-adafruit","category-arduino","category-digitalelectronics","category-fritzing","category-microcontrollers","category-arduino-programming","category-projects"],"_links":{"self":[{"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/posts\/1591","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.donluc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1591"}],"version-history":[{"count":3,"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/posts\/1591\/revisions"}],"predecessor-version":[{"id":1599,"href":"https:\/\/www.donluc.com\/index.php?rest_route=\/wp\/v2\/posts\/1591\/revisions\/1599"}],"wp:attachment":[{"href":"https:\/\/www.donluc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.donluc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.donluc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}