A small controller for controlling the tempeture inside my kegerator. It has weigth and outside temp
Dependencies: DHT DS18B20_1wire EthernetInterface Hx711 mbed-rtos mbed
main.cpp@0:a07ccbfc0b89, 2016-02-21 (annotated)
- Committer:
- gert_lauritsen
- Date:
- Sun Feb 21 11:03:55 2016 +0000
- Revision:
- 0:a07ccbfc0b89
Controller for a Keggenerator
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
gert_lauritsen | 0:a07ccbfc0b89 | 1 | #include "mbed.h" |
gert_lauritsen | 0:a07ccbfc0b89 | 2 | #include <stdint.h> |
gert_lauritsen | 0:a07ccbfc0b89 | 3 | #include "DS18B20.h" |
gert_lauritsen | 0:a07ccbfc0b89 | 4 | #include "DHT.h" |
gert_lauritsen | 0:a07ccbfc0b89 | 5 | #include "EthernetInterface.h" |
gert_lauritsen | 0:a07ccbfc0b89 | 6 | #include "Hx711.h" |
gert_lauritsen | 0:a07ccbfc0b89 | 7 | |
gert_lauritsen | 0:a07ccbfc0b89 | 8 | #define RATE 1 |
gert_lauritsen | 0:a07ccbfc0b89 | 9 | #define SensorOffset 0 |
gert_lauritsen | 0:a07ccbfc0b89 | 10 | |
gert_lauritsen | 0:a07ccbfc0b89 | 11 | char* SERVER_ADDRESS = "172.31.2.3"; |
gert_lauritsen | 0:a07ccbfc0b89 | 12 | const int SERVER_PORT = 2223; |
gert_lauritsen | 0:a07ccbfc0b89 | 13 | |
gert_lauritsen | 0:a07ccbfc0b89 | 14 | |
gert_lauritsen | 0:a07ccbfc0b89 | 15 | typedef struct { |
gert_lauritsen | 0:a07ccbfc0b89 | 16 | char CtrlType; |
gert_lauritsen | 0:a07ccbfc0b89 | 17 | long RawData; |
gert_lauritsen | 0:a07ccbfc0b89 | 18 | long Offset; |
gert_lauritsen | 0:a07ccbfc0b89 | 19 | } __attribute__ ((packed)) TStatus; |
gert_lauritsen | 0:a07ccbfc0b89 | 20 | |
gert_lauritsen | 0:a07ccbfc0b89 | 21 | typedef struct { |
gert_lauritsen | 0:a07ccbfc0b89 | 22 | char CtrlType; |
gert_lauritsen | 0:a07ccbfc0b89 | 23 | float tempeture; //nuværende temperatur |
gert_lauritsen | 0:a07ccbfc0b89 | 24 | float setpoint; //Hvad temperatur vi skal nå. |
gert_lauritsen | 0:a07ccbfc0b89 | 25 | float weigth; //Vægten af fadet |
gert_lauritsen | 0:a07ccbfc0b89 | 26 | float OutTemp; //Udendørs temperatur |
gert_lauritsen | 0:a07ccbfc0b89 | 27 | float OutHum; //udendør hymidity |
gert_lauritsen | 0:a07ccbfc0b89 | 28 | float Hyst; //Hysterese |
gert_lauritsen | 0:a07ccbfc0b89 | 29 | } __attribute__ ((packed)) Tsetting; |
gert_lauritsen | 0:a07ccbfc0b89 | 30 | |
gert_lauritsen | 0:a07ccbfc0b89 | 31 | DigitalOut led(LED_GREEN); //Indikator på frys |
gert_lauritsen | 0:a07ccbfc0b89 | 32 | DigitalOut Cool(A3); //Fryser relæ |
gert_lauritsen | 0:a07ccbfc0b89 | 33 | |
gert_lauritsen | 0:a07ccbfc0b89 | 34 | HX711 LoadCell(A4,A5); |
gert_lauritsen | 0:a07ccbfc0b89 | 35 | DHT dht22(A2,DHT22); //Udendørs temperatur |
gert_lauritsen | 0:a07ccbfc0b89 | 36 | |
gert_lauritsen | 0:a07ccbfc0b89 | 37 | Serial pc(USBTX, USBRX); // serial comms over usb back to console |
gert_lauritsen | 0:a07ccbfc0b89 | 38 | DS18B20 thermom(A1, DS18B20::RES_12_BIT); // Dallas 1-wire |
gert_lauritsen | 0:a07ccbfc0b89 | 39 | float SetTemp; |
gert_lauritsen | 0:a07ccbfc0b89 | 40 | |
gert_lauritsen | 0:a07ccbfc0b89 | 41 | Tsetting status; |
gert_lauritsen | 0:a07ccbfc0b89 | 42 | EthernetInterface eth; |
gert_lauritsen | 0:a07ccbfc0b89 | 43 | UDPSocket server,sock;; //Denne server. Modtager data fra PC sock er til at sende data |
gert_lauritsen | 0:a07ccbfc0b89 | 44 | Endpoint process_server, DataIn; |
gert_lauritsen | 0:a07ccbfc0b89 | 45 | |
gert_lauritsen | 0:a07ccbfc0b89 | 46 | void ReadTemp() { |
gert_lauritsen | 0:a07ccbfc0b89 | 47 | status.tempeture=thermom.GetTemperature()-SensorOffset; |
gert_lauritsen | 0:a07ccbfc0b89 | 48 | while ((status.tempeture<-20) || (status.tempeture>110)) status.tempeture=thermom.GetTemperature(); //læs igen |
gert_lauritsen | 0:a07ccbfc0b89 | 49 | if (status.tempeture>(status.setpoint+status.Hyst)) { |
gert_lauritsen | 0:a07ccbfc0b89 | 50 | Cool=1; led=0; |
gert_lauritsen | 0:a07ccbfc0b89 | 51 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 52 | if (status.tempeture<(status.setpoint-status.Hyst)) { |
gert_lauritsen | 0:a07ccbfc0b89 | 53 | Cool=0; led=1; |
gert_lauritsen | 0:a07ccbfc0b89 | 54 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 55 | |
gert_lauritsen | 0:a07ccbfc0b89 | 56 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 57 | |
gert_lauritsen | 0:a07ccbfc0b89 | 58 | void ReadSocketDate(void const *args) { |
gert_lauritsen | 0:a07ccbfc0b89 | 59 | char buffer[256]; |
gert_lauritsen | 0:a07ccbfc0b89 | 60 | printf("ReadThread Init Done\r\n"); |
gert_lauritsen | 0:a07ccbfc0b89 | 61 | while (1) { |
gert_lauritsen | 0:a07ccbfc0b89 | 62 | int n = server.receiveFrom(DataIn, buffer, sizeof(buffer)); |
gert_lauritsen | 0:a07ccbfc0b89 | 63 | if (buffer[0]==0) { //seach function |
gert_lauritsen | 0:a07ccbfc0b89 | 64 | if (strcmp(DataIn.get_address(),process_server.get_address())!=0) { |
gert_lauritsen | 0:a07ccbfc0b89 | 65 | process_server.set_address(DataIn.get_address(),SERVER_PORT); |
gert_lauritsen | 0:a07ccbfc0b89 | 66 | printf(" New Adress: %s\r\n",DataIn.get_address()); |
gert_lauritsen | 0:a07ccbfc0b89 | 67 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 68 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 69 | if (buffer[0]==1) { |
gert_lauritsen | 0:a07ccbfc0b89 | 70 | memcpy(&status,&buffer[0],sizeof(status)); |
gert_lauritsen | 0:a07ccbfc0b89 | 71 | printf("NEW Settings [%s]:\r\n",DataIn.get_address()); |
gert_lauritsen | 0:a07ccbfc0b89 | 72 | printf(" setpoint: %.1f \r\n",status.setpoint); |
gert_lauritsen | 0:a07ccbfc0b89 | 73 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 74 | if (buffer[0]==2) { |
gert_lauritsen | 0:a07ccbfc0b89 | 75 | printf("Set new zero for loadCell\r\n"); |
gert_lauritsen | 0:a07ccbfc0b89 | 76 | LoadCell.tare(50); |
gert_lauritsen | 0:a07ccbfc0b89 | 77 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 78 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 79 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 80 | |
gert_lauritsen | 0:a07ccbfc0b89 | 81 | int main() { |
gert_lauritsen | 0:a07ccbfc0b89 | 82 | char out_buffer[sizeof(status)]; |
gert_lauritsen | 0:a07ccbfc0b89 | 83 | led=1; |
gert_lauritsen | 0:a07ccbfc0b89 | 84 | pc.printf("\n\r---------------------------------------------------------------\n\r"); |
gert_lauritsen | 0:a07ccbfc0b89 | 85 | pc.printf("Fryser Controller INIT\n\r"); |
gert_lauritsen | 0:a07ccbfc0b89 | 86 | status.CtrlType=2; |
gert_lauritsen | 0:a07ccbfc0b89 | 87 | status.setpoint=0; |
gert_lauritsen | 0:a07ccbfc0b89 | 88 | eth.init(); //Use DHCP |
gert_lauritsen | 0:a07ccbfc0b89 | 89 | eth.connect(); |
gert_lauritsen | 0:a07ccbfc0b89 | 90 | pc.printf("IP Address is %s\n\r", eth.getIPAddress()); |
gert_lauritsen | 0:a07ccbfc0b89 | 91 | |
gert_lauritsen | 0:a07ccbfc0b89 | 92 | sock.init(); |
gert_lauritsen | 0:a07ccbfc0b89 | 93 | server.bind(SERVER_PORT); |
gert_lauritsen | 0:a07ccbfc0b89 | 94 | |
gert_lauritsen | 0:a07ccbfc0b89 | 95 | process_server.set_address(SERVER_ADDRESS, SERVER_PORT); |
gert_lauritsen | 0:a07ccbfc0b89 | 96 | |
gert_lauritsen | 0:a07ccbfc0b89 | 97 | pc.printf("Temp Sensor: \n\r"); |
gert_lauritsen | 0:a07ccbfc0b89 | 98 | DS18B20::ROM_Code_t ROM_Code; |
gert_lauritsen | 0:a07ccbfc0b89 | 99 | thermom.ReadROM(&ROM_Code); |
gert_lauritsen | 0:a07ccbfc0b89 | 100 | pc.printf("Family code: 0x%X\n\r", ROM_Code.BYTES.familyCode); |
gert_lauritsen | 0:a07ccbfc0b89 | 101 | pc.printf("Serial Number: "); |
gert_lauritsen | 0:a07ccbfc0b89 | 102 | for (unsigned i = 6; i != 0; --i) { |
gert_lauritsen | 0:a07ccbfc0b89 | 103 | pc.printf("%02X%s", ROM_Code.BYTES.serialNo[i-1], (i != 1)?":":"\r\n"); |
gert_lauritsen | 0:a07ccbfc0b89 | 104 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 105 | pc.printf("CRC: 0x%X\r\n", ROM_Code.BYTES.CRC); |
gert_lauritsen | 0:a07ccbfc0b89 | 106 | Thread DbThread(ReadSocketDate, NULL, osPriorityNormal, (DEFAULT_STACK_SIZE * 2.25)); |
gert_lauritsen | 0:a07ccbfc0b89 | 107 | |
gert_lauritsen | 0:a07ccbfc0b89 | 108 | LoadCell.set_scale(1); //Sættes afhængigt af sensor |
gert_lauritsen | 0:a07ccbfc0b89 | 109 | pc.printf("---------------------------------------------------------------\n\r"); |
gert_lauritsen | 0:a07ccbfc0b89 | 110 | |
gert_lauritsen | 0:a07ccbfc0b89 | 111 | pc.printf("\n\rRunning ...\n\r"); |
gert_lauritsen | 0:a07ccbfc0b89 | 112 | |
gert_lauritsen | 0:a07ccbfc0b89 | 113 | |
gert_lauritsen | 0:a07ccbfc0b89 | 114 | while (1) { |
gert_lauritsen | 0:a07ccbfc0b89 | 115 | ReadTemp(); // |
gert_lauritsen | 0:a07ccbfc0b89 | 116 | status.weigth=LoadCell.get_units(20); |
gert_lauritsen | 0:a07ccbfc0b89 | 117 | int err=dht22.readData(); |
gert_lauritsen | 0:a07ccbfc0b89 | 118 | if (err==0) { |
gert_lauritsen | 0:a07ccbfc0b89 | 119 | status.OutTemp=dht22.ReadTemperature(CELCIUS); |
gert_lauritsen | 0:a07ccbfc0b89 | 120 | status.OutHum =dht22.ReadHumidity(); |
gert_lauritsen | 0:a07ccbfc0b89 | 121 | // printf("T: %.1f C",dht22.ReadTemperature(CELCIUS)); |
gert_lauritsen | 0:a07ccbfc0b89 | 122 | // printf(" H %.1f\% \n\r",dht22.ReadHumidity()); |
gert_lauritsen | 0:a07ccbfc0b89 | 123 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 124 | //send data til PC |
gert_lauritsen | 0:a07ccbfc0b89 | 125 | // printf("%.1f \r\n",status.tempeture ); |
gert_lauritsen | 0:a07ccbfc0b89 | 126 | memcpy(&out_buffer[0],&status.CtrlType,sizeof(status)); |
gert_lauritsen | 0:a07ccbfc0b89 | 127 | sock.sendTo(process_server, out_buffer, sizeof(status)); |
gert_lauritsen | 0:a07ccbfc0b89 | 128 | wait(2); |
gert_lauritsen | 0:a07ccbfc0b89 | 129 | } |
gert_lauritsen | 0:a07ccbfc0b89 | 130 | } |