3-Axis Digital Accelerometer
Dependencies: MMA7660FC WebSocketClient WiflyInterface mbed
main.cpp
00001 #include "mbed.h" 00002 #include "WiflyInterface.h" 00003 #include "Websocket.h" 00004 #include "MMA7660FC.h" 00005 00006 00007 /* wifly interface: 00008 * - p9 and p10 are for the serial communication 00009 * - p19 is for the reset pin 00010 * - p26 is for the connection status 00011 * - "mbed" is the ssid of the network 00012 * - "password" is the password 00013 * - WPA is the security 00014 */ 00015 WiflyInterface wifly(p13, p14, p19, p26, "Nexus 5", "1234qwer", WPA); 00016 DigitalOut myled1(LED1); 00017 DigitalOut myled2(LED2); 00018 DigitalOut myled3(LED3); 00019 DigitalOut myled4(LED4); 00020 00021 #define ADDR_MMA7660 0x98 // I2C SLAVE ADDR MMA7660FC 00022 00023 MMA7660FC Acc(p28, p27, ADDR_MMA7660); //sda, scl, Addr 00024 Serial pc(USBTX, USBRX); 00025 00026 00027 float G_VALUE[64] = {0, 0.047, 0.094, 0.141, 0.188, 0.234, 0.281, 0.328, 0.375, 0.422, 0.469, 0.516, 0.563, 0.609, 0.656, 0.703, 0.750, 0.797, 0.844, 0.891, 0.938, 0.984, 1.031, 1.078, 1.125, 1.172, 1.219, 1.266, 1.313, 1.359, 1.406, 1.453, -1.500, -1.453, -1.406, -1.359, -1.313, -1.266, -1.219, -1.172, -1.125, -1.078, -1.031, -0.984, -0.938, -0.891, -0.844, -0.797, -0.750, -0.703, -0.656, -0.609, -0.563, -0.516, -0.469, -0.422, -0.375, -0.328, -0.281, -0.234, -0.188, -0.141, -0.094, -0.047}; 00028 00029 int main() { 00030 wifly.init(); //Use DHCP 00031 //wifly.init("192.168.21.33","255.255.255.0","192.168.21.2"); 00032 while (!wifly.connect()); 00033 myled4=1; 00034 printf("IP Address is %s\n\r", wifly.getIPAddress()); 00035 00036 Websocket ws("ws://wot.city/object/accelerometer/send"); 00037 while (!ws.connect()); 00038 myled2=1; 00039 00040 00041 Acc.init(); // Initialization 00042 pc.printf("Value reg 0x06: %#x\n", Acc.read_reg(0x06)); // Test the correct value of the register 0x06 00043 pc.printf("Value reg 0x08: %#x\n", Acc.read_reg(0x08)); // Test the correct value of the register 0x08 00044 pc.printf("Value reg 0x07: %#x\n\r", Acc.read_reg(0x07)); // Test the correct value of the register 0x07 00045 00046 00047 00048 while (1) { 00049 char data[256]; 00050 00051 myled4=1; 00052 float x=0, y=0, z=0; 00053 float ax=0, ay=0, az=0; 00054 00055 Acc.read_Tilt(&x, &y, &z); // Read the acceleration 00056 pc.printf("Tilt x: %2.2f degree \n", x); // Print the tilt orientation of the X axis 00057 pc.printf("Tilt y: %2.2f degree \n", y); // Print the tilt orientation of the Y axis 00058 pc.printf("Tilt z: %2.2f degree \n", z); // Print the tilt orientation of the Z axis 00059 00060 wait_ms(100); 00061 00062 00063 00064 ax = G_VALUE[Acc.read_x()]; 00065 ay = G_VALUE[Acc.read_y()]; 00066 az = G_VALUE[Acc.read_z()]; 00067 00068 if(ax<0){ 00069 myled1=1; 00070 }else{ 00071 myled1=0; 00072 } 00073 if(ay<0){ 00074 myled2=1; 00075 }else{ 00076 myled2=0; 00077 } 00078 if(az<0){ 00079 myled3=1; 00080 }else{ 00081 myled3=0; 00082 } 00083 00084 wait(1); 00085 sprintf( data , "{ \"ax\": %f, \"ay\": %f, \"az\": %f\n}",ax,ay,az); 00086 ws.send(data); 00087 00088 //wait(1.0); 00089 } 00090 }
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