This is a pre-wired and waterproof version of the DS18B20 sensor crafted with a PTFE wire cable. It's extremely useful when you need to measure temperatures from a distance or in wet conditions. Compared to our other waterproof version with a PVC cable, this one is a bit pricier, but it can handle temperatures up to 125°C, which is the sensor's limit. However, it's not suitable for salt - water or corrosive environments as the stainless steel will rust over time. Since the sensor signal is digital, there's no signal degradation even over long distances. These 1 - wire digital temperature sensors are quite precise (±0.5°C over a large range) and can offer up to 12 - bit precision from the onboard digital - to - analog converter. They work well with any microcontroller using a single digital pin, and you can connect multiple sensors to the same pin as each has a unique 64 - bit ID assigned at the factory. They're compatible with 3.0 - 5.0V systems. The only drawback is that they use the Dallas 1 - Wire protocol, which is a bit complex and needs some code to parse the communication. If you prefer something simple and have an analog input pin, the TMP36 is a great choice. When using this sensor, you'll need a 4.7k resistor as a pullup from the DATA to VCC line. We have a CircuitPython/Python guide for these sensors, and you can start with the Dallas Temperature Control Arduino library (which also requires the OneWire Library) for Arduino projects.
Using this temperature sensor is straightforward. First, make sure to connect a 4.7k resistor as a pullup from the DATA to VCC line. You can use it with any microcontroller that has a single digital pin. Just connect the sensor to the pin, and you're good to go. If you want to connect multiple sensors, no problem! Each sensor has a unique 64 - bit ID, so they can be easily distinguished. It works with 3.0 - 5.0V systems, so check your power supply. Remember, this sensor can measure temperatures up to 125°C, which is great for high - temp situations. But don't use it in salt - water or corrosive environments because the stainless steel will rust. If you're using CircuitPython or Python, we have a guide for you. For Arduino users, start with the Dallas Temperature Control Arduino library and the OneWire Library. Keep it dry when not in use, and store it in a cool place to maintain its performance.
