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Today we are going to show you how to find the I2C address of an I2C device which is connected to the Quantum platform. You will need to find the I2C Address in order to build the firmware and upload it to the Builder Base.

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Assemble the Circuit

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We are using an I2C display but there are a bunch of different I2C devices you can connect to the Quantum system. Once your I2C devices are connected and powered on, go to your Quantum Server and do the rest of the configuration there.

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Pair the Builder Base

From the home screen of your Q-Server go to Clients on the left side. Click on the “Unpaired” tab.

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Scroll a little bit down and you will find ‘I2C Scan’. Click on ‘Scan’. A blue bar should light up at the top of your screen telling you the address.

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Build the

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Firmware

Now move to the firmware section. Hit ‘Create New’. Name the project ‘LCD’.

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Select the right Client and click upload.

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Build the

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App

Now we are going to create a demo app for the I2C-display. Head over to the app builder on the left side and click ‘create new’. We will name it “LCD”.

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Connect the ‘Text'-Port of the ‘Input Text' object to the 'Send to Display’ and 'String’ ports of the LCD object.

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Click ‘save’.

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Run the App!

Now click the play button on the app you created.

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