Product description: DS2482S-800 - I2C to 1-Wire converter 8 channels - STEMMA QT / Qwiic - Adafruit 6027
A high-quality I2C bus to 8-channel 1-Wire interface converter from Adafruit , based on the DS2482S-800 chip. Using STEMMA QT/Qwiic technology, the module provides a fast, solderless connection to multiple platforms, including Raspberry Pi , Arduino , Feather, and Metro. Ideal for supporting DS18B20 sensors in industrial, hobby, and educational applications. Built-in pull-up power for parasitic mode, the ability to change the I2C address, and a compact design make it an extremely versatile tool for any electronics engineer.
DS2482S-800 - I2C to 1-Wire converter 8 channels - STEMMA QT / Qwiic - Adafruit 6027.
The converter is based on the DS2482S-800 chip.
Main features of the DS2482S-800 converter
- 8 independent 1-Wire channels : each channel has a dedicated signal, power and ground output
- STEMMA QT/Qwiic compatible : solderless connectors for quick integration with other modules
- Supports 3V or 5V supply voltage : flexible power supply and multi-platform compatibility
- Adjustable I2C address : up to 8 converters can be connected on one bus
- Built-in pull-up for parasitic power supply : simplifies sensor operation without external power supply
- Python, CircuitPython, and Arduino support : wide availability of libraries and examples
I/O pins and connectors
The module has eight sets of 1-Wire pins (0-7), each in the form of a 3-pin connector : signal (1W), ground (-), and power (+). These connectors allow for the connection of up to eight independent DS18B20 sensors. The reverse side of the board features address jumpers A0, A1, and A2 for changing the I2C address (default 0x18) , allowing for connecting multiple modules on a single bus. STEMMA QT / Qwiic connectors on the sides facilitate integration with other system components without the need for soldering .
Programming and operation
The DS2482S-800 converter is supported by ready-made libraries for Arduino (Adafruit_DS248x) and CircuitPython / Python (Adafruit_CircuitPython_DS248x). Sample scripts allow you to read data from multiple channels and precisely assign values to individual sensors . Integration with a Raspberry Pi or computer is achieved via the I2C bus and the Blink library. The sample code allows for sequential temperature readings from each channel . which facilitates diagnostics and recognition of sensors in the field.
The board is equipped with STEMMA QT connectors.
Elements included in the set.
Technical specifications of the converter
- Chip: DS2482S-800
- Number of 1-Wire channels: 8
- Power supply: 3V or 5V
- Communication: I2C (default address 0x18)
- Connectors: STEMMA QT / Qwiic
- 1-Wire Outputs: 8 x 3-pin set (signal, ground, power)
- Built-in pull-up for parasitic power supply
- Possibility to change the I2C address using jumpers
- Power indicator: LED
- Dimensions: 25.6 x 25.3 x 4.9 mm
- Weight: 2.6 g
Contents of the set
- 1x Adafruit DS2482S-800 Module
- 1x Goldpin connector 1x16-pin
