1=====================
2ESP-LyraP-TouchA v1.1
3=====================
4
5:link_to_translation:`zh_CN:[中文]`
6
7This user guide provides information on the ESP-LyraP-TouchA extension board.
8
9This board cannot be bought separately and is usually sold together with other Espressif development boards (e.g., ESP32-S2-Kaluga-1), which will be referred to as *main boards* below.
10
11Currently, ESP-LyraP-TouchA v1.1 is sold as part of the following kits:
12
13* :doc:`user-guide-esp32-s2-kaluga-1-kit`
14* :doc:`user-guide-esp32-s2-kaluga-1-kit-v1.2`
15
16The ESP-LyraP-TouchA extends the functionality of your main board by adding touch buttons.
17
18.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-toucha-v1.1-3d.png
19    :align: center
20    :alt: ESP-LyraP-TouchA
21    :figclass: align-center
22
23    ESP-LyraP-TouchA
24
25The document consists of the following major sections:
26
27- `Overview`_: Provides an overview and hardware setup instructions.
28- `Hardware reference`_: Provides more detailed information about the ESP-LyraP-TouchA's hardware.
29- `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP-LyraP-TouchA.
30- `Related Documents`_: Gives links to related documentation.
31
32
33Overview
34========
35
36The ESP-LyraP-TouchA has six touch buttons and is mainly designed for audio applications. However, the touch buttons can also be used for any other purposes.
37
38
39Description of Components
40-------------------------
41
42.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-toucha-v1.1-layout-front.png
43    :align: center
44    :alt: ESP-LyraP-TouchA
45    :figclass: align-center
46
47    ESP-LyraP-TouchA
48
49.. list-table::
50   :widths: 30 70
51   :header-rows: 1
52
53   * - Key Component
54     - Description
55   * - Main Board Touch FPC Connector
56     - Connect to main board's Touch FPC Connector.
57   * - Touchpad
58     - Capacitive touch electrode.
59   * - Guard Ring
60     - Connected to a touch sensor, the guard ring triggers an interrupt if wet (Water rejection). It indicates that the sensor array is also wet and most (if not all) touchpads are unusable due to the false detection of touches. After receiving this interrupt, the user might consider disabling all the touch sensors via software.
61
62
63Start Application Development
64-----------------------------
65
66Before powering up your ESP-LyraP-TouchA, please make sure that it is in good condition with no obvious signs of damage.
67
68
69Required Hardware
70^^^^^^^^^^^^^^^^^
71
72- Board with a Touch FPC connector  (e.g., ESP32-S2-Kaluga-1)
73- ESP-LyraP-TouchA extension board
74- FPC cable
75- Computer running Windows, Linux, or macOS
76
77
78Hardware Setup
79^^^^^^^^^^^^^^
80
81Connect the two FPC connectors with the FPC cable.
82
83
84Software Setup
85^^^^^^^^^^^^^^
86
87See Section :ref:`user-guide-esp32-s2-kaluga-1-kit-software-setup` of the ESP32-S2-Kaluga-1 kit user guide.
88
89
90Hardware Reference
91==================
92
93
94Block Diagram
95-------------
96
97A block diagram below shows the components of ESP-LyraP-TouchA and their interconnections.
98
99.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-toucha-v1.1-block-diagram.png
100    :align: center
101    :alt: ESP-LyraP-TouchA-v1.1 block diagram
102    :figclass: align-center
103
104    ESP-LyraP-TouchA-v1.1 block diagram
105
106
107Hardware Revision Details
108=========================
109
110No previous versions available.
111
112
113Related Documents
114=================
115
116- `ESP-LyraP-TouchA Schematic <https://dl.espressif.com/dl/schematics/ESP-LyraP-TouchA_V1.1_SCH_20200325A.pdf>`_ (PDF)
117- `ESP-LyraP-TouchA PCB Layout <https://dl.espressif.com/dl/schematics/ESP-LyraP-TouchA_V1.1_PCB_20200325AA.pdf>`_ (PDF)
118
119For other design documentation for the board, please contact us at sales@espressif.com.