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Merge branch 'bugfix/touch_pad_driver' into 'master'

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driver(touch): fix bug and add more features

See merge request !1056
This commit is contained in:
Wang Jia Lin
2017-08-23 19:12:39 +08:00
parent de10032717 842caaab21
commit f1ecffb46c
11 changed files with 1377 additions and 239 deletions
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docs/api-reference/peripherals/index.rst
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@@ -18,6 +18,7 @@ Peripherals API
SPI Master <spi_master>
SPI Slave <spi_slave>
Timer <timer>
Touch pad <touch_pad>
UART <uart>
Example code for this API section is provided in :example:`peripherals` directory of ESP-IDF examples.

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docs/api-reference/peripherals/touch_pad.rst Normal file
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Touch sensor
===========
Overview
--------
A touch-sensor system is built on a substrate which carries electrodes and relevant connections under a protective flat surface.
When a user touches the surface, the capacitance variation is triggered and a binary signal is generated to indicate whether the touch is valid.
ESP32 can provide up to 10 capacitive touch pads / GPIOs. The sensing pads can be arranged in different combinations,
so that a larger area or more points can be detected. The touch pad sensing process is under the control of a hardware-implemented finite-state machine (FSM) which is initiated by software or a dedicated hardware timer.
Application Example
-------------------
Touch sensor read example: :example:`peripherals/touch_pad_read`.
Touch sensor interrupt example: :example:`peripherals/touch_pad_interrupt`.
API Reference
-------------
.. include:: /_build/inc/touch_pad.inc