Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Type	DS18B20 Digital Temperature Sensor
Interface Protocol	1-Wire Bus
Temperature Range	-55°C to +125°C
Accuracy	±0.5°C (from -10°C to +85°C)
Resolution	9 to 12-bit configurable
Operating Voltage	3.0V to 5.5V DC
Microcontroller Compatibility	STM32, Arduino, ESP32, Raspberry Pi
Board Dimensions	45mm x 20mm x 15mm
Connection Type	3-Pin Header (VCC, Data, GND)
Package Contents	1x DS18B20 Module Board, 1x Pin Header Strip

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Accurate within spec

Tested against a professional lab thermometer. The deviation was well within the stated ±0.5°C accuracy. Great for data logging applications where precision matters.

Anonymous

Mar 21, 2026

Rating: 4/5

Good value, minor soldering needed

The sensor itself is great and accurate. Note that the pin headers are not pre-soldered on some batches, so be prepared to do a little soldering. Otherwise, it's a solid development board.

Anonymous

Mar 12, 2026

Rating: 5/5

Reliable and fast shipping

Arrived quickly and well-packaged. I used this for a home automation project monitoring room temperature. The response time is quick, and the library support for various MCUs is excellent.

Anonymous

Mar 12, 2026

Rating: 5/5

Easy to use for beginners

As someone new to sensors, I found this very easy to set up. There are plenty of tutorials online for connecting this to Arduino and STM32. It just works out of the box.

Anonymous

Mar 08, 2026

Rating: 5/5

Perfect for STM32 projects

This module worked flawlessly with my STM32F103 board. The 1-wire communication was stable, and the temperature readings were consistent with my calibrated thermometer. Highly recommended for prototyping.

Anonymous

Mar 05, 2026

Rating: 4/5

Solid performance

Used multiple units for a robot chassis thermal monitoring system. All sensors returned similar values, indicating good consistency across the batch. One star off because the PCB silk screen is a bit faint.

5 FAQ

Q: Does this module require an external pull-up resistor?

A: Yes, the 1-Wire protocol requires a pull-up resistor (typically 4.7kΩ) on the data line. Some breakout boards include this, but please check your specific schematic or add one externally if needed.

Q: Is this compatible with 3.3V logic levels?

A: Yes, the module operates comfortably between 3.0V and 5.5V, making it fully compatible with 3.3V systems like the STM32 and ESP32 without needing level shifters.

Q: Do you provide sample code for STM32 HAL library?

A: We do not host code directly, but there are many open-source repositories on GitHub that offer DS18B20 drivers specifically written for the STM32 HAL library which work perfectly with this module.

Q: Can I connect multiple DS18B20 modules to a single GPIO pin?

A: Absolutely! One of the main advantages of the DS18B20 is its ability to daisy-chain multiple sensors on the same 1-Wire bus using a single microcontroller pin.

Q: What is the maximum cable length recommended for the sensor?

A: For reliable communication, we recommend keeping the cable length under 10 meters. For longer distances, you may need to lower the communication speed or use shielded cables.

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