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42 lines
1.4 KiB
Markdown
42 lines
1.4 KiB
Markdown
---
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title: Wiring Configuration
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---
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# #05. Wiring Configuration
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<div class="ui segment note">
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<span class="ui ribbon label">Note</span>
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This is a web-version of a tutorial chapter embedded right into the XOD IDE.
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To get a better learning experience we recommend to install the
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<a href="/downloads/">desktop IDE</a> or start the
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<a href="/ide/">browser-based IDE</a>, and you’ll see the same tutorial there.
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</div>
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Devices are physically connected to digital or analog ports on the Arduino.
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To associate them with nodes, you need to inform the node of the port
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number that you are about to use.
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By a convention the leftmost pins are used to define the wiring information.
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If the device is simple and communicates with the Arduino via a single hardware
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port the corresponding XOD pin is called a `PORT`.
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Note, that many devices require some specific hardware capabilities from the
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port they are connected to. Notably, to smoothly control a parameter (like
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LED’s brightness) the port should support PWM (pulse width modulation).
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PWM-enabled ports have a tilde (~) symbol printed next to their numbers on
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Arduino boards.
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## Test circuit
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[↓ Download as a Fritzing project](./circuit.fzz)
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## How-to
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You can set port values exactly the same way as you do with other pins.
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[Next lesson →](../06-adding-nodes/)
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