This adaptor connects your 1-Wire network to your computer. It appears as Virtual Com Port (VCP) and it is based on the FT232RL (USB-UART converter) and DS2480B Dallas-Maxim (RS232-One Wire converter). It has selectable RC filter for improving communication for lines between 1 and 100 meters and ESD line protection. It is compatible with DS9097U of Maxim-Dallas with the difference that this adaptor is connected to your USB port
Features
- USB port (type B)
- 3 pin output screw terminal (GND, 1 Wire Line, +5V)
- Chipset: FT232RL and DS2480B
- ESD line Protection based on DS9503P
- Emulates the Maxim Dallas DS9097U converter
- Works with all iButton® and 1-Wire Slave Devices*
- Reliable network weight: up to 200 meters**
- Selectable RC filter for improving communication for middle lines (between 1 and 100 meters)
- Rx and Tx leds for the serial communication
- Fully supplied from computer USB port
- It is shown as Virtual Com Port (VCP)
- Large number of free software and source code
- Supported by One Wire Viewer, TMEX of MAXIM-DALLAS and many others
- Operating temperature range: -40°C to +85°C
- Dimensions: 58.0mm / 26.5mm
- User manual: here
* The device can not program 1-wire EPROM devices
** The network weight is the length + devices weight. For example iButtons devices have weight 1m and non-iButtons have 0.5m. If the length is 100m and there are 200 sensors DS18S20 connected then the total weight is 200m. In our laboratory, the converter is tested with 300 meters twisted pair cable with 20 DS18S20 sensors and worked stable.
The auction includes
- 1 x USB to One Wire interface module converter
- 1 x Temperature sensor DS18S20+
Application Examples
- Home Automation
- Industrial Automation
- USB thermometer/logger (with combination of temperature sensor and software)
- USB - One Wire bridge
- Distributed systems for measurement temperature, voltage and so on...
Connection with DS18S20
Together with DS18S20, the USB One Ore converter can be easily turned into USB Thermometer/Logger (of course with PC software). Bellow it is shown how to connect one such sensor (additional sensors can be bought separately from us). In this way you can measure temperatures from -55°C to +125°C (-67°F to +257°F).
Connection diagrams how to connect DS18S20 to the One Wire converter.
How to connect single DS18S20 sensor to the converter. It takes seconds!
OneWireViewer
There are many One Wire based software solutions on the market. One such software (free offered by Maxim-Dallas) is OneWireViewer. With this software the adaptor can be easily tested. The software will be available on your PC after you install the One Wire drivers (it will apprear as executable program). Denkovi USB to One Wire converter is tested with this software and works stable. It emulates the DS9097U.
Useful Links
User manual - 
FTDI VCP Drivers and FT232RL documentation - Images
Please read before buy!
