IOL HAT allows for the exchange of data between single-board computers (SBCs) and smart SDCI sensors, actuators, and other devices. SDCI is also known under the brand name of IO-Link. IOL HAT is an add-on board (HAT) for Raspberry Pis and other SBCs, and you can stack up to two of them, allowing the connection of up to four SDCI devices.
IOL HAT is a perfect fit for applications that run on SBCs and require real-world data. SDCI is a standard, with over 20,000 different devices (mainly sensors) on the market. This reliable, digital interlink allows for fault-free data transfer even in harsh environments or with cable lengths up to 20 meters.
IOL HAT provides a physical interface for your smart devices through two SDCI ports over generic 3.5 mm plug-in connectors.
SDCI communication requires a hardware driver and a software stack. For IOL HAT, the driver is integrated on the extension board. The software stack is part of the Master Application and provides a binary TCP interface to the user’s application. This allows easy integration with applications in any programming language that can implement TCP sockets. Examples for C/C++ and Python are provided together with the Master Application.
Alternatively, the IO-Link stack can be integrated into user applications written in C/C++.
We are making two versions of IOL HAT available through this campaign:
The following commands are available over binary TCP to the Master Application:
The project, including binaries, source code, and schematics, is hosted on GitHub. Further information and the user datasheet with the API description are available here.
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