Russell Shomberg / Mbed 2 deprecated shomberg_hw_7

Implement a SD card into HW6

Dependencies:   SDFileSystem mbed

Fork of shomberg_hw_6 by Russell Shomberg

main.cpp@9:da0b72918880, 2018-10-25 (annotated)

Committer:
rshomberg
Date:
Thu Oct 25 18:12:33 2018 +0000
Revision:
9:da0b72918880
Parent:
8:d6560caeda9a
Child:
10:c9a438114fbd
does not compile

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rshomberg 0:82635173a413 1 /**
rshomberg 8:d6560caeda9a 2 Temperature Sensor for hw6
rshomberg 0:82635173a413 3 main.cpp
rshomberg 0:82635173a413 4
rshomberg 6:8cfa0216554f 5 Purpose: Read signal from TMP36 connected to pin20
rshomberg 6:8cfa0216554f 6 Display output voltage to terminal
rshomberg 6:8cfa0216554f 7 Display difference in mV of output voltage to starting voltage on 2x 7-Segment Displays
rshomberg 6:8cfa0216554f 8 See outputs for pin configuration
rshomberg 6:8cfa0216554f 9 Toggle switch connected to pin07 to convert displays to degC
rshomberg 6:8cfa0216554f 10
rshomberg 8:d6560caeda9a 11 @author Russell Shomberg
rshomberg 8:d6560caeda9a 12 @created 2018-10-23
rshomberg 9:da0b72918880 13 @revised 2018-10-25
rshomberg 8:d6560caeda9a 14 @version 0.0
rshomberg 0:82635173a413 15
rshomberg 6:8cfa0216554f 16 Issues: No Decimal point for temperature
rshomberg 7:1a43ff8ccc08 17
rshomberg 5:dbd163551a58 18 */
rshomberg 0:82635173a413 19
rshomberg 0:82635173a413 20 // INCLUDES
rshomberg 0:82635173a413 21 #include "mbed.h"
rshomberg 9:da0b72918880 22 #include "OCE360Input.h"
rshomberg 9:da0b72918880 23 #include "SegDisplay.h"
rshomberg 0:82635173a413 24
rshomberg 0:82635173a413 25
rshomberg 0:82635173a413 26 // OUTPUTS
rshomberg 2:312a0a9c4485 27 Serial pc(USBTX, USBRX); // for debugging
rshomberg 6:8cfa0216554f 28
rshomberg 0:82635173a413 29 // VARIABLES
rshomberg 6:8cfa0216554f 30 int outputT= 0;
rshomberg 6:8cfa0216554f 31 float v0;
rshomberg 6:8cfa0216554f 32 float deltav;
rshomberg 6:8cfa0216554f 33 float val;
rshomberg 6:8cfa0216554f 34 int ones;
rshomberg 6:8cfa0216554f 35 int tens;
rshomberg 6:8cfa0216554f 36
rshomberg 0:82635173a413 37
rshomberg 0:82635173a413 38 int main() {
rshomberg 6:8cfa0216554f 39 // read starting voltage from temperature sensor
rshomberg 9:da0b72918880 40 v0 = read_sensor();
rshomberg 6:8cfa0216554f 41
rshomberg 0:82635173a413 42 while(1) {
rshomberg 6:8cfa0216554f 43 // Read Switch if on output temp else output mV
rshomberg 9:da0b72918880 44 outputT = read_switch();
rshomberg 9:da0b72918880 45 deltav = read_sensor()-v0;
rshomberg 1:cbee04784c60 46
rshomberg 6:8cfa0216554f 47 // Output to terminal
rshomberg 6:8cfa0216554f 48 if (outputT) {
rshomberg 6:8cfa0216554f 49 // Convert to temp
rshomberg 9:da0b72918880 50 val = convert_mV_to_temp(deltav);
rshomberg 9:da0b72918880 51 //printf("Temperature Difference = %1.2f degC\n\r", val);
rshomberg 6:8cfa0216554f 52 }
rshomberg 6:8cfa0216554f 53
rshomberg 6:8cfa0216554f 54 else {
rshomberg 6:8cfa0216554f 55 val = deltav;
rshomberg 9:da0b72918880 56 //printf("Voltage Difference = %1.2f mV\n\r", val);
rshomberg 6:8cfa0216554f 57 }
rshomberg 4:098e3d869055 58
rshomberg 6:8cfa0216554f 59 // Convert val to ones and tens char
rshomberg 6:8cfa0216554f 60 ones = fmod(rint(val),10);
rshomberg 6:8cfa0216554f 61 tens = fmod(rint(val) / 10, 10);
rshomberg 1:cbee04784c60 62
rshomberg 6:8cfa0216554f 63
rshomberg 9:da0b72918880 64 Seg1 = SegConvert(ones);
rshomberg 9:da0b72918880 65 Seg2 = SegConvert(tens);
rshomberg 6:8cfa0216554f 66
rshomberg 6:8cfa0216554f 67
rshomberg 6:8cfa0216554f 68 wait(1);
rshomberg 6:8cfa0216554f 69
rshomberg 0:82635173a413 70 }
rshomberg 6:8cfa0216554f 71
rshomberg 0:82635173a413 72 }
rshomberg 6:8cfa0216554f 73