Nunchuk Piledrivers / Mbed 2 deprecated ADC_Converter

ads_converter for the a ads1015 using all mbed

Dependencies:   ADS1015 USBDevice mbed

main.cpp@0:e9b3484aed88, 2015-12-10 (annotated)

Committer:
NunchukPiledrivers
Date:
Thu Dec 10 19:11:44 2015 +0000
Revision:
0:e9b3484aed88
Final code - Punlished by paul

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NunchukPiledrivers 0:e9b3484aed88 1 #include <mbed.h>
NunchukPiledrivers 0:e9b3484aed88 2 #include <Adafruit_ADS1015.h>
NunchukPiledrivers 0:e9b3484aed88 3 using namespace std;
NunchukPiledrivers 0:e9b3484aed88 4 /***************************************
NunchukPiledrivers 0:e9b3484aed88 5 LED 1 = Standy by mode
NunchukPiledrivers 0:e9b3484aed88 6 LED 2 = Reading Message
NunchukPiledrivers 0:e9b3484aed88 7 LED 3 = Wrighting Message
NunchukPiledrivers 0:e9b3484aed88 8 From The Keyboard
NunchukPiledrivers 0:e9b3484aed88 9 Cell Zero == 3 is if they are talking to us
NunchukPiledrivers 0:e9b3484aed88 10 Second character 0 == start
NunchukPiledrivers 0:e9b3484aed88 11 1 == stop
NunchukPiledrivers 0:e9b3484aed88 12 ***************************************/
NunchukPiledrivers 0:e9b3484aed88 13 /**************************************
NunchukPiledrivers 0:e9b3484aed88 14 Initial Parameters
NunchukPiledrivers 0:e9b3484aed88 15 ***************************************/
NunchukPiledrivers 0:e9b3484aed88 16 I2C i2c(p28, p27); //pins 27/28 for I2C interface
NunchukPiledrivers 0:e9b3484aed88 17 Adafruit_ADS1015 ads(&i2c);
NunchukPiledrivers 0:e9b3484aed88 18 Serial pc(USBTX, USBRX); // tx, rx
NunchukPiledrivers 0:e9b3484aed88 19 DigitalOut led(LED1); // LED 1 for state 1
NunchukPiledrivers 0:e9b3484aed88 20 DigitalOut led2(LED2); // LED 2 for state 2
NunchukPiledrivers 0:e9b3484aed88 21 DigitalOut led3(LED3); // LED 3 for state 3
NunchukPiledrivers 0:e9b3484aed88 22 CAN can(p30, p29); //p30(rx) and p29(tx)
NunchukPiledrivers 0:e9b3484aed88 23 LocalFileSystem local("local"); //Output file location
NunchukPiledrivers 0:e9b3484aed88 24 CANMessage msg;
NunchukPiledrivers 0:e9b3484aed88 25 char state;
NunchukPiledrivers 0:e9b3484aed88 26 FILE *fp = fopen("/local/out.txt", "w"); //File initialization
NunchukPiledrivers 0:e9b3484aed88 27 int i = 0;
NunchukPiledrivers 0:e9b3484aed88 28 /*************************************
NunchukPiledrivers 0:e9b3484aed88 29 Function Status keeps checking the bus waiting for the KeyBoard Subgroup
NunchukPiledrivers 0:e9b3484aed88 30 To tell us to start reading from the blackbox.
NunchukPiledrivers 0:e9b3484aed88 31 *************************************/
NunchukPiledrivers 0:e9b3484aed88 32 void get_state()
NunchukPiledrivers 0:e9b3484aed88 33 {
NunchukPiledrivers 0:e9b3484aed88 34 can.read(msg);
NunchukPiledrivers 0:e9b3484aed88 35 char Cell_One = msg.data[0];
NunchukPiledrivers 0:e9b3484aed88 36 char Cell_Two = msg.data[1];
NunchukPiledrivers 0:e9b3484aed88 37 if (Cell_One == '3' && Cell_Two == '0') {
NunchukPiledrivers 0:e9b3484aed88 38 pc.printf("Reading \r \n");
NunchukPiledrivers 0:e9b3484aed88 39 state = 2;
NunchukPiledrivers 0:e9b3484aed88 40 } else if (Cell_One == '3' && Cell_Two == '1') {
NunchukPiledrivers 0:e9b3484aed88 41 pc.printf("Writing \r \n");
NunchukPiledrivers 0:e9b3484aed88 42 state = 3;
NunchukPiledrivers 0:e9b3484aed88 43 i = 0;
NunchukPiledrivers 0:e9b3484aed88 44 } else
NunchukPiledrivers 0:e9b3484aed88 45 pc.printf("Waiting \r \n");
NunchukPiledrivers 0:e9b3484aed88 46 state = state;
NunchukPiledrivers 0:e9b3484aed88 47
NunchukPiledrivers 0:e9b3484aed88 48 }
NunchukPiledrivers 0:e9b3484aed88 49 int main()
NunchukPiledrivers 0:e9b3484aed88 50 {
NunchukPiledrivers 0:e9b3484aed88 51 state = 1;
NunchukPiledrivers 0:e9b3484aed88 52 pc.baud(9600);
NunchukPiledrivers 0:e9b3484aed88 53 pc.printf("\r \n");
NunchukPiledrivers 0:e9b3484aed88 54 pc.printf("\r \n");
NunchukPiledrivers 0:e9b3484aed88 55 pc.printf("Hello! \r \n");
NunchukPiledrivers 0:e9b3484aed88 56 pc.printf("Note: ADC Range +/- 6.144 (1 bit = 3mV/ADS1015, 0.1875mV/ ADS1115)\r \n");
NunchukPiledrivers 0:e9b3484aed88 57 pc.printf("Waitng.... \r \n");
NunchukPiledrivers 0:e9b3484aed88 58 uint16_t adc0; // channel coming from the black box
NunchukPiledrivers 0:e9b3484aed88 59 float conversion_factor = .003;
NunchukPiledrivers 0:e9b3484aed88 60 can.attach(&get_state , CAN::RxIrq);
NunchukPiledrivers 0:e9b3484aed88 61 while (1) {
NunchukPiledrivers 0:e9b3484aed88 62
NunchukPiledrivers 0:e9b3484aed88 63 if (state == 2) {
NunchukPiledrivers 0:e9b3484aed88 64 adc0 = ads.readADC_SingleEnded(0); // read channel 0
NunchukPiledrivers 0:e9b3484aed88 65 pc.printf("AIN0: %f\r\n", adc0*conversion_factor); // print channel 0
NunchukPiledrivers 0:e9b3484aed88 66 fprintf(fp, "%f\r\n", adc0*conversion_factor);
NunchukPiledrivers 0:e9b3484aed88 67 led = 0;
NunchukPiledrivers 0:e9b3484aed88 68 led2 = 1;
NunchukPiledrivers 0:e9b3484aed88 69 led3 = 0;
NunchukPiledrivers 0:e9b3484aed88 70 wait(0.01); //100 hz
NunchukPiledrivers 0:e9b3484aed88 71 } else if (state == 3) {
NunchukPiledrivers 0:e9b3484aed88 72 fclose(fp);
NunchukPiledrivers 0:e9b3484aed88 73 led = 0;
NunchukPiledrivers 0:e9b3484aed88 74 led2 = 0;
NunchukPiledrivers 0:e9b3484aed88 75 led3 = 1;
NunchukPiledrivers 0:e9b3484aed88 76 if(i == 0) {
NunchukPiledrivers 0:e9b3484aed88 77 pc.printf("File Complete \r \n");
NunchukPiledrivers 0:e9b3484aed88 78 i++;
NunchukPiledrivers 0:e9b3484aed88 79 }
NunchukPiledrivers 0:e9b3484aed88 80 state = 1;
NunchukPiledrivers 0:e9b3484aed88 81 } else {
NunchukPiledrivers 0:e9b3484aed88 82 led = 1;
NunchukPiledrivers 0:e9b3484aed88 83 led2 = 0;
NunchukPiledrivers 0:e9b3484aed88 84 led3 = 0;
NunchukPiledrivers 0:e9b3484aed88 85 }
NunchukPiledrivers 0:e9b3484aed88 86 }
NunchukPiledrivers 0:e9b3484aed88 87 }