Gert Lauritsen
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
Revision 0:a07ccbfc0b89, committed 2016-02-21
- Comitter:
- gert_lauritsen
- Date:
- Sun Feb 21 11:03:55 2016 +0000
- Commit message:
- Controller for a Keggenerator
Changed in this revision
diff -r 000000000000 -r a07ccbfc0b89 DHT.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DHT.lib Sun Feb 21 11:03:55 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/gert_lauritsen/code/DHT/#6ddabfde1db6
diff -r 000000000000 -r a07ccbfc0b89 DS18B20_1wire.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DS18B20_1wire.lib Sun Feb 21 11:03:55 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/richardlane/code/DS18B20_1wire/#00972ed59ba3
diff -r 000000000000 -r a07ccbfc0b89 EthernetInterface.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetInterface.lib Sun Feb 21 11:03:55 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/EthernetInterface/#2fc406e2553f
diff -r 000000000000 -r a07ccbfc0b89 Hx711.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Hx711.lib Sun Feb 21 11:03:55 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/gert_lauritsen/code/Hx711/#52c805a049c4
diff -r 000000000000 -r a07ccbfc0b89 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Feb 21 11:03:55 2016 +0000
@@ -0,0 +1,130 @@
+#include "mbed.h"
+#include <stdint.h>
+#include "DS18B20.h"
+#include "DHT.h"
+#include "EthernetInterface.h"
+#include "Hx711.h"
+
+#define RATE 1
+#define SensorOffset 0
+
+char* SERVER_ADDRESS = "172.31.2.3";
+const int SERVER_PORT = 2223;
+
+
+typedef struct {
+ char CtrlType;
+ long RawData;
+ long Offset;
+} __attribute__ ((packed)) TStatus;
+
+typedef struct {
+ char CtrlType;
+ float tempeture; //nuværende temperatur
+ float setpoint; //Hvad temperatur vi skal nå.
+ float weigth; //Vægten af fadet
+ float OutTemp; //Udendørs temperatur
+ float OutHum; //udendør hymidity
+ float Hyst; //Hysterese
+} __attribute__ ((packed)) Tsetting;
+
+DigitalOut led(LED_GREEN); //Indikator på frys
+DigitalOut Cool(A3); //Fryser relæ
+
+HX711 LoadCell(A4,A5);
+DHT dht22(A2,DHT22); //Udendørs temperatur
+
+Serial pc(USBTX, USBRX); // serial comms over usb back to console
+DS18B20 thermom(A1, DS18B20::RES_12_BIT); // Dallas 1-wire
+float SetTemp;
+
+Tsetting status;
+EthernetInterface eth;
+UDPSocket server,sock;; //Denne server. Modtager data fra PC sock er til at sende data
+Endpoint process_server, DataIn;
+
+void ReadTemp() {
+ status.tempeture=thermom.GetTemperature()-SensorOffset;
+ while ((status.tempeture<-20) || (status.tempeture>110)) status.tempeture=thermom.GetTemperature(); //læs igen
+ if (status.tempeture>(status.setpoint+status.Hyst)) {
+ Cool=1; led=0;
+ }
+ if (status.tempeture<(status.setpoint-status.Hyst)) {
+ Cool=0; led=1;
+ }
+
+}
+
+void ReadSocketDate(void const *args) {
+ char buffer[256];
+ printf("ReadThread Init Done\r\n");
+ while (1) {
+ int n = server.receiveFrom(DataIn, buffer, sizeof(buffer));
+ if (buffer[0]==0) { //seach function
+ if (strcmp(DataIn.get_address(),process_server.get_address())!=0) {
+ process_server.set_address(DataIn.get_address(),SERVER_PORT);
+ printf(" New Adress: %s\r\n",DataIn.get_address());
+ }
+ }
+ if (buffer[0]==1) {
+ memcpy(&status,&buffer[0],sizeof(status));
+ printf("NEW Settings [%s]:\r\n",DataIn.get_address());
+ printf(" setpoint: %.1f \r\n",status.setpoint);
+ }
+ if (buffer[0]==2) {
+ printf("Set new zero for loadCell\r\n");
+ LoadCell.tare(50);
+ }
+ }
+}
+
+int main() {
+ char out_buffer[sizeof(status)];
+ led=1;
+ pc.printf("\n\r---------------------------------------------------------------\n\r");
+ pc.printf("Fryser Controller INIT\n\r");
+ status.CtrlType=2;
+ status.setpoint=0;
+ eth.init(); //Use DHCP
+ eth.connect();
+ pc.printf("IP Address is %s\n\r", eth.getIPAddress());
+
+ sock.init();
+ server.bind(SERVER_PORT);
+
+ process_server.set_address(SERVER_ADDRESS, SERVER_PORT);
+
+ pc.printf("Temp Sensor: \n\r");
+ DS18B20::ROM_Code_t ROM_Code;
+ thermom.ReadROM(&ROM_Code);
+ pc.printf("Family code: 0x%X\n\r", ROM_Code.BYTES.familyCode);
+ pc.printf("Serial Number: ");
+ for (unsigned i = 6; i != 0; --i) {
+ pc.printf("%02X%s", ROM_Code.BYTES.serialNo[i-1], (i != 1)?":":"\r\n");
+ }
+ pc.printf("CRC: 0x%X\r\n", ROM_Code.BYTES.CRC);
+ Thread DbThread(ReadSocketDate, NULL, osPriorityNormal, (DEFAULT_STACK_SIZE * 2.25));
+
+ LoadCell.set_scale(1); //Sættes afhængigt af sensor
+ pc.printf("---------------------------------------------------------------\n\r");
+
+ pc.printf("\n\rRunning ...\n\r");
+
+
+ while (1) {
+ ReadTemp(); //
+ status.weigth=LoadCell.get_units(20);
+ int err=dht22.readData();
+ if (err==0) {
+ status.OutTemp=dht22.ReadTemperature(CELCIUS);
+ status.OutHum =dht22.ReadHumidity();
+ // printf("T: %.1f C",dht22.ReadTemperature(CELCIUS));
+// printf(" H %.1f\% \n\r",dht22.ReadHumidity());
+ }
+ //send data til PC
+ // printf("%.1f \r\n",status.tempeture );
+ memcpy(&out_buffer[0],&status.CtrlType,sizeof(status));
+ sock.sendTo(process_server, out_buffer, sizeof(status));
+ wait(2);
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r a07ccbfc0b89 mbed-rtos.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Sun Feb 21 11:03:55 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#3d9d2b8b8f17
diff -r 000000000000 -r a07ccbfc0b89 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Feb 21 11:03:55 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6f327212ef96 \ No newline at end of file