Alexander Scheinost / DS18B20

Libary for DS18B20 working in MBED-OS

Diff: ds18b20.h

Revision:
0:1abc4873af36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ds18b20.h	Wed Nov 04 07:36:02 2020 +0000
@@ -0,0 +1,35 @@
+#ifndef ds18b20_h
+#define ds18b20_h
+
+#include "mbed.h"
+
+#define OWI_SKIP_ROM 0xCC
+#define DS18S20_START 0x44
+#define DS18S20_READ_SCRATCH_PAD 0xBE
+
+class OWI
+{
+    public:
+        OWI(PinName pin);
+        void sendByte(unsigned char data);
+        unsigned char receiveByte();
+        unsigned char detectPresence();
+        
+    private:
+        void write0();
+        void write1();
+        unsigned char readBit();
+        DigitalInOut owi_io;
+};
+
+class DS18B20
+{
+    public:
+        DS18B20(PinName pin);
+        float readTemp();
+    
+    private:
+        OWI DS18B20_OWI;
+};
+
+#endif
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