8/28/2023 0 Comments One wire arduino library![]() The above code can only be used to query a single DS18B20. Let’s see what happens if we want to connect several sensors to the 1 Wire bus. Then we print the temperature on the serial monitor the measured temperature can be found in this memory area the measurement takes a maximum of 750ms. According to the data sheet, with a resolution of 12 bits, During the measurement, the ds18b20 is busy and does not accept commands Waiting for the measurement to finish. the sensing device is powered by parasitic power. Adding a second parameter indicates that The Convert T command starts the temperature conversion. This command can only be used if there is only one DS18B20 on the bus. unique 48-bit serial number, and 8-bit CRC. This command allows the bus master to read 1 Wire bus reset,this is required before starting communication And you also need an array to read the ROM We create an array for the data read from Scratchpad Arduino pin 10 is the data line of the 1 Wire bus In the following example, we read a DS18B20 temperature sensor with Arduino on the 1 Wire bus. ![]()
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