Somatosensory TV Remote Controller

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Objective To have a remote control of a TV through somatosensory operation. By moving the position of the remote controller, you can change TV channels or volume. Principle Use three-axis acceleration sensor MPU6050 to detect the remote controller's movement and the infrared transmission sensor to control the TV by matching code. Equipment Module Number Function Microduino-CoreUSB 1 Core board Microduino-Sensorhub 1 Sensor pin board Microduino-10DOF 1 Vector sensor module Microduino-IR transmitter 1 Infrared transmission sensor Microduino-Converter 1 Pin board Microduino-BM 1 Battery management File:Ble lamp light.jpg 600px Hardware Buildup Setup 1：Stack CoreUSBk, 10DOF and Sensorhub together. File:CoreUSB 10DOF Sensorhub.jpg 600px Setup 2：Connect the infrared transmission sensor to the D3 pin of Sensorhub through the pin board. File:Light ir transmitter.jpg 600px Software Debugging TV infrared control code definition. Here we adopt NEC encoding format. #define ITEM+ 0x02FDD827 //TV program+ #define ITEM- 0x02FDF807 // TV program - #define VOL+ 0x02FD58A7 //Volume+ #define VOL- 0x02FD7887 // Volume - MPU6050 accelgyro; //Three-axis acceleration sensor IRsend irsend; //Infrared transmission Three-axis acceleration sensor initialization Serial.println("Initializing I2C devices..."); accelgyro.initialize(); //IIC device initializes. Serial.println("Testing device connections..."); Serial.println(accelgyro.testConnection() ?"MPU6050 connection successful" : "MPU6050 connection failed"); //MPU6050 has been connected. File:Microduino MPU6050 1.png 300px Judge the movement status of the controller. (Move rightwards: TV program+ Leftwards: TV program - Upwards: Volume+ Downwards: Volume -) accelgyro.getAcceleration(&ax, &ay, &az); //Acquire accelerator values. Ax = ax/16384.00; Ay = ay/16384.00; Az = az/16384.00; if(Ay >= 0.6 ) //Have detected the remote controller starts to move rightwards. { irsend.sendNEC(ITEM+,32); //Send channel change code delay(1000); //Delay time and wait until it stops moving. } else if(Ay <= -0.6) //Have detected the remote controller starts to move leftwards. { irsend.sendNEC(ITEM-,32); delay(1000); } else if(Az >= 1.5) //Have detected the controller starts to move upwards. { irsend.sendNEC(VOL+,32); delay(1000); } else if(Az <= 0.5) //Have detected the controller starts to move downwards. { irsend.sendNEC(VOL-,32); delay(1000); } delay(100); Note: If you think the infrared transmission sensor's remote control distance is short, you can reduce current-limit resistance on the infrared sensor to increase transmission distance. Program [MicroduinoMotionRemoteTV] Result By moving leftwards or rightwards, the remote controller can change TV channels. By moving upwards or downwards, it can control TV volume. You can also add attitudes to control TV's other functions. Video