Waterproof DS18B20-Compatible Temperature Sensor with Resistor

September 20,2024

When you need to measure temperature, the DS18B20 is a firm favourite. Easy to code and with an abundance of examples on the internet, it's a go-to temperature sensor! This particular sensor is a pre-wired, waterproof version with a DS18B20-compatible sensor in the tip - great for measuring the temperature of liquids, or simply something further away from your microcontroller. These are a digital sensor so you don't have to worry about signal issues over longer distances. We suggest limiting the submerged liquid temperature to 100°C to stay on the safe side. Don't use it in salt water or other corrosive liquids. Not IP rated or guaranteed for long-term/high-pressure usage. These sensors are quite precise (±0.5°C usually and can give up to 12 bits of precision from the onboard digital-to-analogue converter. They use the Dallas 1-Wire protocol, so data is.
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When you need to measure temperature, the DS18B20 is a firm favourite. Easy to code and with an abundance of examples on the internet, it's a go-to temperature sensor! This particular sensor is a pre-wired, waterproof version with a DS18B20-compatible sensor in the tip - great for measuring the temperature of liquids, or simply something further away from your microcontroller. These are a digital sensor so you don't have to worry about signal issues over longer distances. We suggest limiting the submerged liquid temperature to 100°C to stay on the safe side. Don't use it in salt water or other corrosive liquids. Not IP rated or guaranteed for long-term/high-pressure usage. These sensors are quite precise (±0.5°C usually and can give up to 12 bits of precision from the onboard digital-to-analogue converter. They use the Dallas 1-Wire protocol, so data is transferred over a single IO pin, and they're sable with 3-5V systems. Want something simpler than 1-wire? Maybe try the TMP36 instead. A 4.7K resistor is included to use as a pull-up for fitting between the VCC and data pinWe toss in a 4.7k resistor, which is required as a pullup from the DATA to VCC line. For Arduino-compatible devices, you can get started using the Dallas Temperature Control Arduino library which also requires the OneWire Library. Specifications Stainless steel tube 6mm diameter by 30mm long Cable length: 91cm, 4mm diameter Contains DS18B20-compatible temperature sensor Red connects to 3-5V, White/Blue/Black (varies by batch) connects to ground and Yellow/White (varies by batch) is data. DS18B20 Specifications Usable temperature range: -55 to 125°C (stick to under 100°C though!) 9 to 12-bit selectable resolution Uses 1-Wire interface- requires only one digital pin for communication ±0.5°C Accuracy from -10°C to +85°C Temperature-limit alarm system Query time is less than 750ms Usable with 3.0V to 5.5V power/data Resources Maxim DS18B20 Datasheet (a good reference for these compatible versions) Regulate Temperature with a Raspberry Pi Pico (thanks to Paulo for the link and excellent project)

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Usable with 3.0V to 5.5V power/data. Stainless steel tube 6mm diameter by 35mm long. ±0.5°C Accuracy from -10°C to +85°C. Uses 1-Wire interface- requires only one digital pin for communication. Comes with a resistor module so it is easy to connect on the Arduino board. The DS18B20 Waterproof Digital Temperature Sensor Kit provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor.

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