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@12:ea407dcaff78, 2018-10-25 (annotated)

Committer:
rshomberg
Date:
Thu Oct 25 22:43:36 2018 +0000
Revision:
12:ea407dcaff78
Parent:
11:42914083ac70
Child:
18:699b41309be7
made SegWrite function and moved pin assignments to header files. This does not work.

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 11:42914083ac70 22 #include "SegDisplay.h"
rshomberg 9:da0b72918880 23 #include "OCE360Input.h"
rshomberg 0:82635173a413 24
rshomberg 0:82635173a413 25 // OUTPUTS
rshomberg 2:312a0a9c4485 26 Serial pc(USBTX, USBRX); // for debugging
rshomberg 6:8cfa0216554f 27
rshomberg 0:82635173a413 28 // VARIABLES
rshomberg 6:8cfa0216554f 29 int outputT= 0;
rshomberg 6:8cfa0216554f 30 float v0;
rshomberg 6:8cfa0216554f 31 float deltav;
rshomberg 6:8cfa0216554f 32 float val;
rshomberg 6:8cfa0216554f 33
rshomberg 0:82635173a413 34
rshomberg 0:82635173a413 35 int main() {
rshomberg 6:8cfa0216554f 36 // read starting voltage from temperature sensor
rshomberg 9:da0b72918880 37 v0 = read_sensor();
rshomberg 6:8cfa0216554f 38
rshomberg 0:82635173a413 39 while(1) {
rshomberg 6:8cfa0216554f 40 // Read Switch if on output temp else output mV
rshomberg 9:da0b72918880 41 outputT = read_switch();
rshomberg 9:da0b72918880 42 deltav = read_sensor()-v0;
rshomberg 1:cbee04784c60 43
rshomberg 6:8cfa0216554f 44 // Output to terminal
rshomberg 6:8cfa0216554f 45 if (outputT) {
rshomberg 6:8cfa0216554f 46 // Convert to temp
rshomberg 9:da0b72918880 47 val = convert_mV_to_temp(deltav);
rshomberg 9:da0b72918880 48 //printf("Temperature Difference = %1.2f degC\n\r", val);
rshomberg 6:8cfa0216554f 49 }
rshomberg 6:8cfa0216554f 50
rshomberg 6:8cfa0216554f 51 else {
rshomberg 6:8cfa0216554f 52 val = deltav;
rshomberg 9:da0b72918880 53 //printf("Voltage Difference = %1.2f mV\n\r", val);
rshomberg 6:8cfa0216554f 54 }
rshomberg 4:098e3d869055 55
rshomberg 12:ea407dcaff78 56 SegWrite(val);
rshomberg 12:ea407dcaff78 57
rshomberg 6:8cfa0216554f 58 wait(1);
rshomberg 6:8cfa0216554f 59
rshomberg 0:82635173a413 60 }
rshomberg 6:8cfa0216554f 61
rshomberg 0:82635173a413 62 }
rshomberg 6:8cfa0216554f 63