44 lines
1.2 KiB
ReStructuredText
44 lines
1.2 KiB
ReStructuredText
Custom SPI Device
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=================
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.. warning::
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Custom components are deprecated, not recommended for new configurations
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and will be removed from ESPHome in a future release.
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Please look at creating a real ESPHome component and "importing" it into your
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configuration with :doc:`/components/external_components`.
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You can find some basic documentation on creating your own components
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at :ref:`contributing_to_esphome`.
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Lots of devices communicate using the SPI protocol. If you want to integrate
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a device into ESPHome that uses this protocol you can pretty much use almost
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all Arduino-based code because the ``SPI`` library is also available in ESPHome.
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See the other custom component guides for how to register components and make
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them publish values.
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Please refer to the SPI library docs for more information.
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.. code-block:: cpp
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#include "esphome.h"
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class MyCustomComponent : public Component {
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public:
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void setup() override {
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SPI.pins(SCK_PIN, MISO_PIN, MOSI_PIN, CS_PIN);
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SPI.begin();
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}
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void loop() override {
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SPI.beginTransaction(...)
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SPI.write(0x42);
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}
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};
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See Also
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--------
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- :ghedit:`Edit`
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