mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-09-29 04:27:32 +02:00
63 lines
1.8 KiB
ReStructuredText
63 lines
1.8 KiB
ReStructuredText
ADS1115 ADC Component
|
|
=====================
|
|
|
|
.. warning::
|
|
|
|
This sensor is experimental has not been tested yet. If you can verify it works, notify me on
|
|
`discord <https://discord.gg/KhAMKrd>`__.
|
|
|
|
.. cpp:namespace:: input
|
|
|
|
This class allows using ADS1115 Analog to Digital converters (`datasheet`_, `adafruit`_) devices with esphomelib.
|
|
Doing so requires some steps:
|
|
|
|
.. _datasheet: http://www.ti.com/lit/ds/symlink/ads1115.pdf
|
|
.. _adafruit: https://www.adafruit.com/product/1085
|
|
|
|
.. cpp:namespace:: sensor::ADS1115Component
|
|
|
|
1. Initialize the i2c bus with the pins you have SDA and SCL connected to:
|
|
|
|
.. code-block:: cpp
|
|
|
|
// inside setup()
|
|
App.init_i2c(SDA_PIN, SCL_PIN);
|
|
|
|
2. Create the "hub" or the ADS1115 device itself. The parameter you pass in here is the i2c
|
|
address of the ADS1115. See :cpp:func:`set_address` for possible other addresses.
|
|
|
|
.. code-block:: cpp
|
|
|
|
// after init_i2c
|
|
auto *ads1115 = App.make_ads1115_component(0x48);
|
|
|
|
This will create an ADS1115 component which you can now use to create individual sensors.
|
|
|
|
3. Create the sensors, you can have multiple of these. Do so by calling :cpp:func:`get_sensor` with
|
|
the multiplexer channel you want (essentially between which pins you want to measure voltage) and
|
|
the gain for that sensor and register that sensor.
|
|
|
|
.. code-block:: cpp
|
|
|
|
auto *sensor = ads1115->get_sensor("ADS1115 Voltage #1", ADS1115_MUX_P0_N1, ADS1115_PGA_6P144);
|
|
App.register_sensor(sensor);
|
|
|
|
.. cpp:namespace:: nullptr
|
|
|
|
See :cpp:func:`Application::make_ads1115_component`.
|
|
|
|
API Reference
|
|
-------------
|
|
|
|
.. cpp:namespace:: nullptr
|
|
|
|
.. doxygenclass:: sensor::ADS1115Component
|
|
:members:
|
|
:protected-members:
|
|
:undoc-members:
|
|
|
|
.. doxygenclass:: sensor::ADS1115Sensor
|
|
:members:
|
|
:protected-members:
|
|
:undoc-members:
|