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Dependencies:   MMA8451Q mbed nRF24L01P

Fork of Sensor_Box by Sensor CDT

main.cpp@6:fb76109304df, 2015-07-01 (annotated)

Committer:
jaehughes
Date:
Wed Jul 01 22:13:56 2015 +0000
Revision:
6:fb76109304df
Parent:
5:7c53f5f2af8d
Child:
7:03334e89478d
added stuff

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Owen 0:a51a6e7da590 1 #include "mbed.h"
Owen 0:a51a6e7da590 2 #include "nRF24L01P.h"
trisjph 3:5c7f4e5a7605 3 #include "MMA8451Q.h"
jaehughes 5:7c53f5f2af8d 4 #include <vector>
jaehughes 5:7c53f5f2af8d 5 #include <math.h>
jaehughes 5:7c53f5f2af8d 6
trisjph 3:5c7f4e5a7605 7 #define MMA8451_I2C_ADDRESS (0x1d<<1)
jaehughes 5:7c53f5f2af8d 8 #define TRANSFER_SIZE 24
jaehughes 6:fb76109304df 9 #define ARRAY_LENGTH 20
jaehughes 5:7c53f5f2af8d 10
Owen 0:a51a6e7da590 11 Serial pc(USBTX, USBRX); // tx, rx
jaehughes 5:7c53f5f2af8d 12
trisjph 3:5c7f4e5a7605 13 PinName const SDA = PTE25;
trisjph 3:5c7f4e5a7605 14 PinName const SCL = PTE24;
jaehughes 5:7c53f5f2af8d 15
jaehughes 5:7c53f5f2af8d 16 AnalogIn light_ain(A0);
jaehughes 5:7c53f5f2af8d 17 AnalogIn temp_ain(A1);
jaehughes 5:7c53f5f2af8d 18 AnalogIn pir_ain(A3);
jaehughes 6:fb76109304df 19 AnalogIn sound_ain(A4);
jaehughes 6:fb76109304df 20 AnalogIn noise_ain(A5);
jaehughes 5:7c53f5f2af8d 21
jaehughes 4:7d3a1dfe5454 22 nRF24L01P my_nrf24l01p(PTD2, PTD3, PTD1, PTE1, PTE0, PTD0); // mosi, miso, sck, csn, ce, irq
jaehughes 5:7c53f5f2af8d 23
Owen 0:a51a6e7da590 24 DigitalOut myled1(LED1);
Owen 0:a51a6e7da590 25 DigitalOut myled2(LED2);
jaehughes 5:7c53f5f2af8d 26
jaehughes 5:7c53f5f2af8d 27 uint16_t light;
jaehughes 5:7c53f5f2af8d 28 uint16_t temp;
jaehughes 5:7c53f5f2af8d 29 uint16_t pir;
jaehughes 6:fb76109304df 30 uint16_t noise;
jaehughes 5:7c53f5f2af8d 31
jaehughes 5:7c53f5f2af8d 32 std::vector<uint16_t> light_data;
jaehughes 5:7c53f5f2af8d 33 std::vector<uint16_t> temp_data;
jaehughes 5:7c53f5f2af8d 34 std::vector<uint16_t> pir_data;
jaehughes 6:fb76109304df 35 std::vector<uint16_t> noise_data;
jaehughes 5:7c53f5f2af8d 36
jaehughes 5:7c53f5f2af8d 37 void getdata()
jaehughes 5:7c53f5f2af8d 38 {
jaehughes 5:7c53f5f2af8d 39 light = light_ain.read_u16();
jaehughes 5:7c53f5f2af8d 40 temp = temp_ain.read_u16();
jaehughes 5:7c53f5f2af8d 41 pir = pir_ain.read_u16();
jaehughes 6:fb76109304df 42 noise = noise_ain.read_u16();
jaehughes 5:7c53f5f2af8d 43
jaehughes 5:7c53f5f2af8d 44 light_data.push_back (light);
jaehughes 5:7c53f5f2af8d 45 temp_data.push_back (temp);
jaehughes 5:7c53f5f2af8d 46 pir_data.push_back (pir);
jaehughes 6:fb76109304df 47 noise_data.push_back (noise);
jaehughes 5:7c53f5f2af8d 48
jaehughes 5:7c53f5f2af8d 49 light_data.pop_back();
jaehughes 5:7c53f5f2af8d 50 temp_data.pop_back();
jaehughes 5:7c53f5f2af8d 51 pir_data.pop_back();
jaehughes 6:fb76109304df 52 noise_data.pop_back();
jaehughes 6:fb76109304df 53
jaehughes 5:7c53f5f2af8d 54 printf("%f\n", light_data);
jaehughes 5:7c53f5f2af8d 55 }
jaehughes 5:7c53f5f2af8d 56
jaehughes 6:fb76109304df 57 void average()
jaehughes 6:fb76109304df 58 {
jaehughes 6:fb76109304df 59 int light_sum = 0;
jaehughes 6:fb76109304df 60 int temp_sum = 0;
jaehughes 6:fb76109304df 61 int noise_sum = 0;
jaehughes 6:fb76109304df 62 float light_avg, temp_avg, noise_avg, light_var, temp_var, noise_var;
jaehughes 6:fb76109304df 63 float light_residuals =0;
jaehughes 6:fb76109304df 64 float temp_residuals = 0 ;
jaehughes 6:fb76109304df 65 float noise_residuals = 0;
jaehughes 6:fb76109304df 66
jaehughes 6:fb76109304df 67 for (int i = 0; i < ARRAY_LENGTH; i++) {
jaehughes 6:fb76109304df 68 light_sum += light_data[i];
jaehughes 6:fb76109304df 69 temp_sum += temp_data[i];
jaehughes 6:fb76109304df 70 noise_sum += noise_data[i];
jaehughes 6:fb76109304df 71 }
jaehughes 6:fb76109304df 72 light_avg = light_sum / (float)ARRAY_LENGTH;
jaehughes 6:fb76109304df 73 temp_avg = temp_sum / (float)ARRAY_LENGTH;
jaehughes 6:fb76109304df 74 noise_avg = noise_sum / (float)ARRAY_LENGTH;
jaehughes 6:fb76109304df 75
jaehughes 6:fb76109304df 76 /* Compute variance and standard deviation */
jaehughes 6:fb76109304df 77 for (int i = 0; i < ARRAY_LENGTH; i++) {
jaehughes 6:fb76109304df 78 light_residuals += pow((light_data[i] - light_avg), 2);
jaehughes 6:fb76109304df 79 temp_residuals += pow((temp_data[i] - temp_avg), 2);
jaehughes 6:fb76109304df 80 noise_residuals += pow((noise_data[i] - noise_avg), 2);
jaehughes 6:fb76109304df 81 }
jaehughes 6:fb76109304df 82 light_var = light_residuals/(float)ARRAY_LENGTH;
jaehughes 6:fb76109304df 83 temp_var = temp_residuals/(float)ARRAY_LENGTH;
jaehughes 6:fb76109304df 84 noise_var = noise_residuals/(float)ARRAY_LENGTH;
jaehughes 6:fb76109304df 85
jaehughes 6:fb76109304df 86 printf("Light Average = %.2f\n", light_avg);
jaehughes 6:fb76109304df 87 printf("Temp Average = %.2f\n", temp_avg);
jaehughes 6:fb76109304df 88 printf("Noise Average = %.2f\n", noise_avg);
jaehughes 6:fb76109304df 89 }
jaehughes 6:fb76109304df 90
jaehughes 6:fb76109304df 91
jaehughes 5:7c53f5f2af8d 92
trisjph 3:5c7f4e5a7605 93 int main()
trisjph 3:5c7f4e5a7605 94 {
jaehughes 5:7c53f5f2af8d 95
trisjph 3:5c7f4e5a7605 96 MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
jaehughes 5:7c53f5f2af8d 97
jaehughes 6:fb76109304df 98 light_data.assign (ARRAY_LENGTH,0);
jaehughes 6:fb76109304df 99 temp_data.assign (ARRAY_LENGTH,0);
jaehughes 6:fb76109304df 100 pir_data.assign (ARRAY_LENGTH,0);
jaehughes 5:7c53f5f2af8d 101
jaehughes 5:7c53f5f2af8d 102
Owen 0:a51a6e7da590 103 char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
Owen 0:a51a6e7da590 104 int txDataCnt = 0;
Owen 0:a51a6e7da590 105 int rxDataCnt = 0;
jaehughes 5:7c53f5f2af8d 106
Owen 0:a51a6e7da590 107 my_nrf24l01p.powerUp();
jaehughes 5:7c53f5f2af8d 108
Owen 0:a51a6e7da590 109 // Display the (default) setup of the nRF24L01+ chip
jaehughes 4:7d3a1dfe5454 110 //pc.printf( "nRF24L01+ Frequency : %d MHz\r\n", my_nrf24l01p.getRfFrequency() );
jaehughes 4:7d3a1dfe5454 111 //pc.printf( "nRF24L01+ Output power : %d dBm\r\n", my_nrf24l01p.getRfOutputPower() );
jaehughes 4:7d3a1dfe5454 112 //pc.printf( "nRF24L01+ Data Rate : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
jaehughes 4:7d3a1dfe5454 113 //pc.printf( "nRF24L01+ TX Address : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
jaehughes 4:7d3a1dfe5454 114 //pc.printf( "nRF24L01+ RX Address : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
jaehughes 5:7c53f5f2af8d 115
jaehughes 4:7d3a1dfe5454 116 //pc.printf( "Type keys to test transfers:\r\n (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
jaehughes 5:7c53f5f2af8d 117
Owen 0:a51a6e7da590 118 my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
jaehughes 5:7c53f5f2af8d 119
Owen 0:a51a6e7da590 120 my_nrf24l01p.setReceiveMode();
Owen 0:a51a6e7da590 121 my_nrf24l01p.enable();
jaehughes 5:7c53f5f2af8d 122
trisjph 3:5c7f4e5a7605 123 printf("MMA8451 ID: %d\n", acc.getWhoAmI());
jaehughes 5:7c53f5f2af8d 124
Owen 0:a51a6e7da590 125 while (1) {
jaehughes 5:7c53f5f2af8d 126 getdata();
jaehughes 6:fb76109304df 127 average();
jaehughes 5:7c53f5f2af8d 128 // txDataCnt = sprintf(txData, " %1.3f %1.3f %1.3f\n", x,y,z);
jaehughes 5:7c53f5f2af8d 129 //my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
trisjph 3:5c7f4e5a7605 130 myled1 = !myled1;
jaehughes 5:7c53f5f2af8d 131 wait(0.5);
Owen 0:a51a6e7da590 132 }
jaehughes 5:7c53f5f2af8d 133 }
jaehughes 5:7c53f5f2af8d 134
jaehughes 5:7c53f5f2af8d 135