The Wire library uses 7 bit addresses throughout. 7 bits identify the device, and the eighth bit determines if it's being written to or read from. There are both 7- and 8-bit versions of I2C addresses. Because of this, send() and receive() have been replaced with read() and write(). The Arduino Due has two I2C / TWI interfaces SDA1 and SCL1 are near to the AREF pin and the additional one is on pins 20 and 21.Īs a reference the table below shows where TWI pins are located on various Arduino boards.Īs of Arduino 1.0, the library inherits from the Stream functions, making it consistent with other read/write libraries. On the Arduino boards with the R3 layout (1.0 pinout), the SDA (data line) and SCL (clock line) are on the pin headers close to the AREF pin. This library allows you to communicate with I2C / TWI devices. bool hasAlarm() function returns true when the temperature exceeds either the high or low alarm set point.Reference Language | Libraries | Comparison | Changes.The acceptable temperature range is -55 to 125☌. setHighAlarmTemp() and setLowAlarmTemp() functions configure a device’s internal high and low temperature alarms in degrees Celsius. ![]() bool getWaitForConversion() function returns the value of the waitForConversion flag, which is useful when determining whether or not a temperature conversion is complete.setResolution() function sets the resolution of the DS18B20’s internal ADC to 9, 10, 11, or 12-bits, which correspond to 0.5☌, 0.25☌, 0.125☌, and 0.0625☌, respectively.There are many useful functions you can use with the DallasTemperature object. Other useful functions in the DallasTemperature.h library print(( char) 176) //shows degrees character
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