Magnus Larsson / Mbed 2 deprecated SpotWelderController

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Dependencies:   mbed TextLCD

main.cpp@4:3b51cf89299b, 2017-07-31 (annotated)

Committer:
Magnus_tl
Date:
Mon Jul 31 21:29:53 2017 +0000
Revision:
4:3b51cf89299b
Parent:
1:5d1abf5d24a5 
Reinserted correct TextLCD library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Magnus_tl 0:9b09ea979c72 1 #include "mbed.h"
UBAL 1:5d1abf5d24a5 2 #include "TextLCD.h"
UBAL 1:5d1abf5d24a5 3
UBAL 1:5d1abf5d24a5 4 #define ENABLED 1
UBAL 1:5d1abf5d24a5 5 #define DISABLED 0
UBAL 1:5d1abf5d24a5 6
UBAL 1:5d1abf5d24a5 7 #define ENABLE_SERIAL_OUTPUT ENABLED
UBAL 1:5d1abf5d24a5 8 #define ENABLE_DISPLAY ENABLED
UBAL 1:5d1abf5d24a5 9
UBAL 1:5d1abf5d24a5 10 #define DEBOUNCE_TIME_MS 50
UBAL 1:5d1abf5d24a5 11 #define POTMETER_SAMPLES 10
UBAL 1:5d1abf5d24a5 12 #define MIN_WELDING_TIME_MS 40
UBAL 1:5d1abf5d24a5 13 #define WELDING_TIME_MS 3000
UBAL 1:5d1abf5d24a5 14 #define POTMETER_UPDATE_TIME_MS 250
UBAL 1:5d1abf5d24a5 15
UBAL 1:5d1abf5d24a5 16 #if ENABLE_SERIAL_OUTPUT
UBAL 1:5d1abf5d24a5 17 Serial pc(USBTX, USBRX);
UBAL 1:5d1abf5d24a5 18 #endif
Magnus_tl 0:9b09ea979c72 19
Magnus_tl 0:9b09ea979c72 20 DigitalOut myled(LED1);
UBAL 1:5d1abf5d24a5 21 DigitalIn pedal(PB_6);
UBAL 1:5d1abf5d24a5 22 AnalogIn pot(PA_0);
UBAL 1:5d1abf5d24a5 23 DigitalOut relay(PB_0);
UBAL 1:5d1abf5d24a5 24
UBAL 1:5d1abf5d24a5 25 #if ENABLE_DISPLAY
UBAL 1:5d1abf5d24a5 26 TextLCD lcd(PB_1, PF_1, PA_8, PA_11, PB_5, PB_4); // rs, e, d4-d7
UBAL 1:5d1abf5d24a5 27 DigitalOut rw(PF_0);
UBAL 1:5d1abf5d24a5 28 #endif
UBAL 1:5d1abf5d24a5 29
UBAL 1:5d1abf5d24a5 30 bool bActive = false;
UBAL 1:5d1abf5d24a5 31 unsigned int runTime = 0;
UBAL 1:5d1abf5d24a5 32 Ticker potUpdateTicker;
UBAL 1:5d1abf5d24a5 33
UBAL 1:5d1abf5d24a5 34 void update_time(void);
UBAL 1:5d1abf5d24a5 35 unsigned int get_time(void);
Magnus_tl 0:9b09ea979c72 36
UBAL 1:5d1abf5d24a5 37 int main()
UBAL 1:5d1abf5d24a5 38 {
UBAL 1:5d1abf5d24a5 39 // Initialize pedal
UBAL 1:5d1abf5d24a5 40 pedal.mode(PullUp);
UBAL 1:5d1abf5d24a5 41
UBAL 1:5d1abf5d24a5 42 #if ENABLE_SERIAL_OUTPUT
UBAL 1:5d1abf5d24a5 43 // Initialize Serial
UBAL 1:5d1abf5d24a5 44 pc.baud(115200);
UBAL 1:5d1abf5d24a5 45 pc.printf("Spot Welder 3000\r\n");
UBAL 1:5d1abf5d24a5 46 #endif
UBAL 1:5d1abf5d24a5 47
UBAL 1:5d1abf5d24a5 48 // Initialize time
UBAL 1:5d1abf5d24a5 49 get_time();
UBAL 1:5d1abf5d24a5 50
UBAL 1:5d1abf5d24a5 51 // Initialize relay output
UBAL 1:5d1abf5d24a5 52 relay = 1;
Magnus_tl 0:9b09ea979c72 53
UBAL 1:5d1abf5d24a5 54 #if ENABLE_DISPLAY
UBAL 1:5d1abf5d24a5 55 // Initialize LCD
UBAL 1:5d1abf5d24a5 56 rw = 0;
UBAL 1:5d1abf5d24a5 57 lcd.cls();
UBAL 1:5d1abf5d24a5 58 lcd.locate(0,0);
UBAL 1:5d1abf5d24a5 59 lcd.printf("Spot Welder 3000");
UBAL 1:5d1abf5d24a5 60 lcd.locate(0,1);
UBAL 1:5d1abf5d24a5 61 lcd.printf("Time: %4d ms", runTime);
UBAL 1:5d1abf5d24a5 62 #endif
UBAL 1:5d1abf5d24a5 63
UBAL 1:5d1abf5d24a5 64 // Start update time
UBAL 1:5d1abf5d24a5 65 potUpdateTicker.attach_us(&update_time, POTMETER_UPDATE_TIME_MS * 1000);
UBAL 1:5d1abf5d24a5 66
UBAL 1:5d1abf5d24a5 67 while (1)
UBAL 1:5d1abf5d24a5 68 {
UBAL 1:5d1abf5d24a5 69 // Check for pedal press
UBAL 1:5d1abf5d24a5 70 if (pedal == 0)
Magnus_tl 0:9b09ea979c72 71 {
UBAL 1:5d1abf5d24a5 72 bActive = true;
UBAL 1:5d1abf5d24a5 73
UBAL 1:5d1abf5d24a5 74 // Debounce
UBAL 1:5d1abf5d24a5 75 wait_ms(DEBOUNCE_TIME_MS);
UBAL 1:5d1abf5d24a5 76 if (pedal == 0)
UBAL 1:5d1abf5d24a5 77 {
UBAL 1:5d1abf5d24a5 78 #if ENABLE_SERIAL_OUTPUT
UBAL 1:5d1abf5d24a5 79 pc.printf("Welding for %d ms\r\n", runTime);
UBAL 1:5d1abf5d24a5 80 #endif
UBAL 1:5d1abf5d24a5 81 relay = 1;
UBAL 1:5d1abf5d24a5 82 myled = 1; // LED is ON
UBAL 1:5d1abf5d24a5 83 wait_ms(runTime);
UBAL 1:5d1abf5d24a5 84 }
Magnus_tl 0:9b09ea979c72 85 }
UBAL 1:5d1abf5d24a5 86
Magnus_tl 0:9b09ea979c72 87 myled = 0; // LED is OFF
UBAL 1:5d1abf5d24a5 88 relay = 0;
UBAL 1:5d1abf5d24a5 89 bActive = false;
Magnus_tl 0:9b09ea979c72 90
UBAL 1:5d1abf5d24a5 91 // One-shot
UBAL 1:5d1abf5d24a5 92 while (pedal == 0)
UBAL 1:5d1abf5d24a5 93 {
UBAL 1:5d1abf5d24a5 94 wait_us(1);
UBAL 1:5d1abf5d24a5 95 }
Magnus_tl 0:9b09ea979c72 96 }
Magnus_tl 0:9b09ea979c72 97 }
UBAL 1:5d1abf5d24a5 98
UBAL 1:5d1abf5d24a5 99 void update_time(void)
UBAL 1:5d1abf5d24a5 100 {
UBAL 1:5d1abf5d24a5 101 if (not bActive)
UBAL 1:5d1abf5d24a5 102 {
UBAL 1:5d1abf5d24a5 103 get_time();
UBAL 1:5d1abf5d24a5 104 #if ENABLE_SERIAL_OUTPUT
UBAL 1:5d1abf5d24a5 105 lcd.locate(6,1);
UBAL 1:5d1abf5d24a5 106 lcd.printf("%4d", runTime);
UBAL 1:5d1abf5d24a5 107 #endif
UBAL 1:5d1abf5d24a5 108 }
UBAL 1:5d1abf5d24a5 109 }
UBAL 1:5d1abf5d24a5 110
UBAL 1:5d1abf5d24a5 111 unsigned int get_time(void)
UBAL 1:5d1abf5d24a5 112 {
UBAL 1:5d1abf5d24a5 113 float potSum = 0;
UBAL 1:5d1abf5d24a5 114
UBAL 1:5d1abf5d24a5 115 for (uint8_t i = 0; i < POTMETER_SAMPLES; i++)
UBAL 1:5d1abf5d24a5 116 {
UBAL 1:5d1abf5d24a5 117 potSum += pot.read();
UBAL 1:5d1abf5d24a5 118 }
UBAL 1:5d1abf5d24a5 119
UBAL 1:5d1abf5d24a5 120 runTime = MIN_WELDING_TIME_MS + (unsigned int)((potSum / POTMETER_SAMPLES) * WELDING_TIME_MS);
UBAL 1:5d1abf5d24a5 121 return runTime;
UBAL 1:5d1abf5d24a5 122 }