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Expand Up @@ -17,7 +17,7 @@ This repository contains both Arduino library and hardware adapter for **OpenThe

## Arduino shield ##

In order to connect your Arduino board to Opentherm device, you need to create a special hardware **interface** to convert voltage and current levels for Arudino to be able to handle. Voltage on Opentherm bus rises as high as 24V which would easily burn up your Arduino if connected to wires directly.
In order to connect your Arduino board to Opentherm device, you need to create a special hardware **interface** to convert voltage and current levels for Arduino to be able to handle. Voltage on Opentherm bus rises as high as 24V which would easily burn up your Arduino if connected to wires directly.

#### Buy or DIY ####

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