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61 lines
1.8 KiB
ReStructuredText
61 lines
1.8 KiB
ReStructuredText
ADS1115 ADC Component
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=====================
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.. cpp:namespace:: input
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This class allows using ADS1115 Analog to Digital converters (`datasheet`_, `adafruit`_) devices with esphomelib.
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Doing so requires some steps:
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.. _datasheet: http://www.ti.com/lit/ds/symlink/ads1115.pdf
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.. _adafruit: https://www.adafruit.com/product/1085
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.. cpp:namespace:: sensor::ADS1115Component
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1. Initialize the i2c bus with the pins you have SDA and SCL connected to:
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.. code-block:: cpp
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// inside setup()
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App.init_i2c(SDA_PIN, SCL_PIN);
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2. Create the "hub" or the ADS1115 device itself. The parameter you pass in here is the i2c
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address of the ADS1115. See :cpp:func:`set_address` for possible other addresses.
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.. code-block:: cpp
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// after init_i2c
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auto *ads1115 = App.make_ads1115_component(0x48);
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This will create an ADS1115 component which you can now use to create individual sensors.
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3. Create the sensors, you can have multiple of these. Do so by calling :cpp:func:`get_sensor` with
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the multiplexer channel you want (essentially between which pins you want to measure voltage) and
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the gain for that sensor and register that sensor.
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.. code-block:: cpp
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auto *sensor = ads1115->get_sensor("ADS1115 Voltage #1", sensor::ADS1115_MULTIPLEXER_P0_N1, sensor::ADS1115_GAIN_6P144);
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App.register_sensor(sensor);
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.. cpp:namespace:: nullptr
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See :cpp:func:`Application::make_ads1115_component`.
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API Reference
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-------------
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.. cpp:namespace:: nullptr
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.. doxygenenum:: sensor::ADS1115Multiplexer
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.. doxygenenum:: sensor::ADS1115Gain
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.. doxygenclass:: sensor::ADS1115Component
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:members:
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:protected-members:
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:undoc-members:
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.. doxygenclass:: sensor::ADS1115Sensor
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:members:
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:protected-members:
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:undoc-members:
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