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WSN End Device
Fork of I2C_HelloWorld_Mbed by
Diff: main.cpp
- Revision:
- 0:f76c26307f9a
- Child:
- 1:bc4ec3bf209e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu Feb 14 17:24:48 2013 +0000 @@ -0,0 +1,25 @@ +#include "mbed.h" + +// Read temperature from LM75BD + +I2C i2c(p28, p27); + +const int addr = 0x90; + +int main() { + char cmd[2]; + while (1) { + cmd[0] = 0x01; + cmd[1] = 0x00; + i2c.write(addr, cmd, 2); + + wait(0.5); + + cmd[0] = 0x00; + i2c.write(addr, cmd, 1); + i2c.read(addr, cmd, 2); + + float tmp = (float((cmd[0]<<8)|cmd[1]) / 256.0); + printf("Temp = %.2f\n", tmp); + } +} \ No newline at end of file