52 lines
1.7 KiB
Markdown
52 lines
1.7 KiB
Markdown
# DS18B20 #
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Arduino library for the Maxim Integrated DS18B20 1-Wire temperature sensor. This library is very simple and intuitive to use, and supports auto-discovering sensors with an optional high/low condition or manually addressing individual sensors.
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For example, we can get the temperature from every sensor on the wire with just a few lines of code:
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```
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#include <DS18B20.h>
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DS18B20 ds(2);
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void setup() {
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Serial.begin(9600);
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}
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void loop() {
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while (ds.selectNext()) {
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Serial.println(ds.getTempC());
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}
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}
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```
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See the included [examples](/examples/) for more.
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## Installation ##
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This library uses the OneWire library, so you will need to have this installed. Install it using the Library Manager in the Arduino IDE or download the latest release from [GitHub](https://github.com/PaulStoffregen/OneWire).
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In the **OneWire.h** file set `ONEWIRE_SEARCH` to 0 since the search functionality is also implemented in this library (don't do this if you need the search functionality for other 1-Wire devices). CRC must be enabled (choose whichever algorithm you prefer). This may save some space on your Arduino.
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## Wiring the DS18B20 ##
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The resistor shown in all the circuit diagrams is 4.7k Ohm pullup resistor.
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### External Power Mode ###
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#### Single ####
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#### Multiple ####
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### Parasitic Power Mode ###
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#### Single ####
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#### Multiple ####
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### Mixed Power Mode ###
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