Electronic Greeter

Language	English

Objective This Electronic Greeter will play happy music when someone walking by. 600px Schematic Microduino-PIR sensor will detect if there is someone moving. If there is, this device will get lighten and play music, which lasts for a while and then stop. 600px Equipment Module Number Function mCookie-CoreUSB 1 Core board mCookie-Hub 1 Sensor pin board mCookie-Audio 1 Audio module mCookie-Amplifier 1 Amplifier module mCookie-BM 1 Battery management Microduino-PIR 1 Pyroelectric Infrared Radiation sensor Microduino-Color led 1 Colored light Other Equipment Two Loudspeakers One cell of battery 600px 600px Program Download Setup 1：Connect CoreUSB and PC/Mac with an USB cable, and open Arduino IDE. 600px Setup 2：Click file>example>> mCookie > _204_JoyfulGreeter. 600px Setup 3：Select the right board card and COM port, then download the program. 600px Software Debugging Function description: ” audio.h”(File that controls Audio to play music.) “colorWipe()”(Function to control LED color.) Serial port usage of the Audio module needs to be decided jumpers on the board. Default Serial (2,3) #include <SoftwareSerial.h> SoftwareSerial mySerial(2, 3); // RX, TX //#define AUDIO_PORT Serial1 //Core+ #define AUDIO_PORT mySerial //Core Control pin description #define humanHotSensor 4//PIR sensor D4 #define PIN 6//Colored light Send serial instruction to control Audio by detecting human movement via PIR. if (humanHotState) { colorWipe(strip.Color(125, 125, 125));//The colored light is on if (!playing) { Serial.println("play sound....."); // audio_play(); audio_choose(1);//Play audio playing = true; } } else { playing = false; //audio_pause(); Serial.println("stop sound....."); colorWipe(strip.Color(0, 0, 0)); } Hardware Buildup Setup1：Connect PIR sensor to D4 pin of Sensorhub and colored light to D6 pin. 600px For connection method, please refer to the following picture. Mind connection order, which starts from LED interface IN to Out. It can control six LED lights at most. Setup 2：Insert TF into AudioShield. Setup 3：Stack AudioSheild and Audio together for TF card reader use. Connect PC via Auido, you can save music into TF card. Here it can only save one piece of music and the play duration shouldn't be long. Setup4：Connect two loudspeakers to Amplifier and stack Audio, AudioShield and Amplifier. 600px Setup5：Connect the activated battery box to BM. [File:CoreUSB_Ble_steup2.jpg|600px|center]] Setup6：Stack all the modules without fixed order (Except that Audio, AudioShield and Amplifier should be stacked together.) 600px (Attention! Audio must be powered through BM, which cannot be connected to computer and powered through Coreusb or it will fail to work.) Result When it detects someone moves, the colored led will turn on and play music. You can build a beautiful frame with LEGO. 600px Video