Ivan Kravets / OneWire

OneWire Library lets you access 1-wire devices made by Maxim/Dallas, such as temperature sensors

Dependents:   OneWireTest mbed_blinky Affich_Lum_Moist Projetv0 ... more 

#include "mbed.h"
#include "OneWire.h"

OneWire owBus(p21);

int main()
{
    char _id[16];
    DeviceAddresses* devAddresses = owBus.getFoundDevAddresses();
    uint8_t foundNum = owBus.getFoundDevNum();
    printf("OneWire: found %d devices\r\n", foundNum);

    while(1) {
        OneWireDeviceTemperature::startConversationForAll(&owBus, OWTEMP_11_BIT);
        for (uint8_t i = 0; i < foundNum; i++) {
            OneWireDevice* owDevice = OneWireDeviceFactory::init(&owBus, (*devAddresses)[i]);
            
            if (owDevice->getFamily() != ONEWIRE_DS18B20_FAMILY)    // currently only DS18B20 supports
                continue;

            owDevice->generateId(_id);
            printf("OneWire: device #%s = %.4f*C\r\n", _id, (float) owDevice->sendGetCommand(GET_TEMPERATURE));
            delete owDevice;            
        }
        
        wait(5);
    }
 }

Diff: OneWireDevice.h

Revision:
2:07da4deb7135
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OneWireDevice.h	Tue Dec 18 11:40:28 2012 +0000
@@ -0,0 +1,26 @@
+#ifndef ONEWIREDEVICE_H
+#define ONEWIREDEVICE_H
+
+#include "OneWire.h"
+
+class OneWireDevice {
+public:
+    OneWireDevice(OneWire* ow, DeviceAddress devAddr);
+    //~OneWireDevice();
+    void generateId(char* id);
+    uint8_t getFamily();
+
+    virtual void sendSetCommand(OneWireDeviceCmd cmd, uint8_t data) {};
+    virtual float sendGetCommand(OneWireDeviceCmd cmd) {
+        return 0;
+    };
+
+protected:
+    OneWire* owBus;
+    DeviceAddress address;
+};
+
+#include "OneWireDeviceFactory.h"
+#include "OneWireDeviceTemperature.h"
+
+#endif 
\ No newline at end of file