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name: Build
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
- name: Checkout repo
uses: actions/checkout@v2
with:
submodules: recursive
- name: esp-idf build
uses: espressif/esp-idf-ci-action@main
with:
esp_idf_version: v5.1
target: esp32
path: './'

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.idea/
.DS_Store
build/
cmake-build-debug/
cmake-build-release/
CMakeCache.txt
*.cmake
*.cbp
sdkconfig
sdkconfig.*
managed_components/
dependencies.lock

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cmake_minimum_required(VERSION 3.16)
set(COMPONENTS main)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(NanoBake)

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# GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 [Free Software Foundation, Inc.](http://fsf.org/)
Everyone is permitted to copy and distribute verbatim copies of this license
document, but changing it is not allowed.
## Preamble
The GNU General Public License is a free, copyleft license for software and
other kinds of works.
The licenses for most software and other practical works are designed to take
away your freedom to share and change the works. By contrast, the GNU General
Public License is intended to guarantee your freedom to share and change all
versions of a program--to make sure it remains free software for all its users.
We, the Free Software Foundation, use the GNU General Public License for most
of our software; it applies also to any other work released this way by its
authors. You can apply it to your programs, too.
When we speak of free software, we are referring to freedom, not price. Our
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## TERMS AND CONDITIONS
### 0. Definitions.
*This License* refers to version 3 of the GNU General Public License.
*Copyright* also means copyright-like laws that apply to other kinds of works,
such as semiconductor masks.
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To *propagate* a work means to do anything with it that, without permission,
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Propagation includes copying, distribution (with or without modification),
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To *convey* a work means any kind of propagation that enables other parties to
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If the interface presents a list of user commands or options, such as a menu, a
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### 1. Source Code.
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The Corresponding Source need not include anything that users can regenerate
automatically from other parts of the Corresponding Source.
The Corresponding Source for a work in source code form is that same work.
### 2. Basic Permissions.
All rights granted under this License are granted for the term of copyright on
the Program, and are irrevocable provided the stated conditions are met. This
License explicitly affirms your unlimited permission to run the unmodified
Program. The output from running a covered work is covered by this License only
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copyright law.
You may make, run and propagate covered works that you do not convey, without
conditions so long as your license otherwise remains in force. You may convey
covered works to others for the sole purpose of having them make modifications
exclusively for you, or provide you with facilities for running those works,
provided that you comply with the terms of this License in conveying all
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the covered works for you must do so exclusively on your behalf, under your
direction and control, on terms that prohibit them from making any copies of
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Conveying under any other circumstances is permitted solely under the
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### 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
No covered work shall be deemed part of an effective technological measure
under any applicable law fulfilling obligations under article 11 of the WIPO
copyright treaty adopted on 20 December 1996, or similar laws prohibiting or
restricting circumvention of such measures.
When you convey a covered work, you waive any legal power to forbid
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### 4. Conveying Verbatim Copies.
You may convey verbatim copies of the Program's source code as you receive it,
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each copy an appropriate copyright notice; keep intact all notices stating that
this License and any non-permissive terms added in accord with section 7 apply
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You may charge any price or no price for each copy that you convey, and you may
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### 5. Conveying Modified Source Versions.
You may convey a work based on the Program, or the modifications to produce it
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provided that you also meet all of these conditions:
- a) The work must carry prominent notices stating that you modified it, and
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- b) The work must carry prominent notices stating that it is released under
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- c) You must license the entire work, as a whole, under this License to
anyone who comes into possession of a copy. This License will therefore
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License gives no permission to license the work in any other way, but it
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- d) If the work has interactive user interfaces, each must display
Appropriate Legal Notices; however, if the Program has interactive
interfaces that do not display Appropriate Legal Notices, your work need
not make them do so.
A compilation of a covered work with other separate and independent works,
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compilation's users beyond what the individual works permit. Inclusion of a
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parts of the aggregate.
### 6. Conveying Non-Source Forms.
You may convey a covered work in object code form under the terms of sections 4
and 5, provided that you also convey the machine-readable Corresponding Source
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- a) Convey the object code in, or embodied in, a physical product (including
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- b) Convey the object code in, or embodied in, a physical product (including
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1. a copy of the Corresponding Source for all the software in the product
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- c) Convey individual copies of the object code with a copy of the written
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### 7. Additional Terms.
*Additional permissions* are terms that supplement the terms of this License by
making exceptions from one or more of its conditions. Additional permissions
that are applicable to the entire Program shall be treated as though they were
included in this License, to the extent that they are valid under applicable
law. If additional permissions apply only to part of the Program, that part may
be used separately under those permissions, but the entire Program remains
governed by this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option remove any
additional permissions from that copy, or from any part of it. (Additional
permissions may be written to require their own removal in certain cases when
you modify the work.) You may place additional permissions on material, added
by you to a covered work, for which you have or can give appropriate copyright
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Notwithstanding any other provision of this License, for material you add to a
covered work, you may (if authorized by the copyright holders of that material)
supplement the terms of this License with terms:
- a) Disclaiming warranty or limiting liability differently from the terms of
sections 15 and 16 of this License; or
- b) Requiring preservation of specified reasonable legal notices or author
attributions in that material or in the Appropriate Legal Notices displayed
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anyone who conveys the material (or modified versions of it) with
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All other non-permissive additional terms are considered *further restrictions*
within the meaning of section 10. If the Program as you received it, or any
part of it, contains a notice stating that it is governed by this License along
with a term that is a further restriction, you may remove that term. If a
license document contains a further restriction but permits relicensing or
conveying under this License, you may add to a covered work material governed
by the terms of that license document, provided that the further restriction
does not survive such relicensing or conveying.
If you add terms to a covered work in accord with this section, you must place,
in the relevant source files, a statement of the additional terms that apply to
those files, or a notice indicating where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the form of a
separately written license, or stated as exceptions; the above requirements
apply either way.
### 8. Termination.
You may not propagate or modify a covered work except as expressly provided
under this License. Any attempt otherwise to propagate or modify it is void,
and will automatically terminate your rights under this License (including any
patent licenses granted under the third paragraph of section 11).
However, if you cease all violation of this License, then your license from a
particular copyright holder is reinstated
- a) provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and
- b) permanently, if the copyright holder fails to notify you of the
violation by some reasonable means prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is reinstated
permanently if the copyright holder notifies you of the violation by some
reasonable means, this is the first time you have received notice of violation
of this License (for any work) from that copyright holder, and you cure the
violation prior to 30 days after your receipt of the notice.
Termination of your rights under this section does not terminate the licenses
of parties who have received copies or rights from you under this License. If
your rights have been terminated and not permanently reinstated, you do not
qualify to receive new licenses for the same material under section 10.
### 9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or run a copy
of the Program. Ancillary propagation of a covered work occurring solely as a
consequence of using peer-to-peer transmission to receive a copy likewise does
not require acceptance. However, nothing other than this License grants you
permission to propagate or modify any covered work. These actions infringe
copyright if you do not accept this License. Therefore, by modifying or
propagating a covered work, you indicate your acceptance of this License to do
so.
### 10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically receives a
license from the original licensors, to run, modify and propagate that work,
subject to this License. You are not responsible for enforcing compliance by
third parties with this License.
An *entity transaction* is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations. If propagation of a covered work
results from an entity transaction, each party to that transaction who receives
a copy of the work also receives whatever licenses to the work the party's
predecessor in interest had or could give under the previous paragraph, plus a
right to possession of the Corresponding Source of the work from the
predecessor in interest, if the predecessor has it or can get it with
reasonable efforts.
You may not impose any further restrictions on the exercise of the rights
granted or affirmed under this License. For example, you may not impose a
license fee, royalty, or other charge for exercise of rights granted under this
License, and you may not initiate litigation (including a cross-claim or
counterclaim in a lawsuit) alleging that any patent claim is infringed by
making, using, selling, offering for sale, or importing the Program or any
portion of it.
### 11. Patents.
A *contributor* is a copyright holder who authorizes use under this License of
the Program or a work on which the Program is based. The work thus licensed is
called the contributor's *contributor version*.
A contributor's *essential patent claims* are all patent claims owned or
controlled by the contributor, whether already acquired or hereafter acquired,
that would be infringed by some manner, permitted by this License, of making,
using, or selling its contributor version, but do not include claims that would
be infringed only as a consequence of further modification of the contributor
version. For purposes of this definition, *control* includes the right to grant
patent sublicenses in a manner consistent with the requirements of this
License.
Each contributor grants you a non-exclusive, worldwide, royalty-free patent
license under the contributor's essential patent claims, to make, use, sell,
offer for sale, import and otherwise run, modify and propagate the contents of
its contributor version.
In the following three paragraphs, a *patent license* is any express agreement
or commitment, however denominated, not to enforce a patent (such as an express
permission to practice a patent or covenant not to sue for patent
infringement). To *grant* such a patent license to a party means to make such
an agreement or commitment not to enforce a patent against the party.
If you convey a covered work, knowingly relying on a patent license, and the
Corresponding Source of the work is not available for anyone to copy, free of
charge and under the terms of this License, through a publicly available
network server or other readily accessible means, then you must either
1. cause the Corresponding Source to be so available, or
2. arrange to deprive yourself of the benefit of the patent license for this
particular work, or
3. arrange, in a manner consistent with the requirements of this License, to
extend the patent license to downstream recipients.
*Knowingly relying* means you have actual knowledge that, but for the patent
license, your conveying the covered work in a country, or your recipient's use
of the covered work in a country, would infringe one or more identifiable
patents in that country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or arrangement, you
convey, or propagate by procuring conveyance of, a covered work, and grant a
patent license to some of the parties receiving the covered work authorizing
them to use, propagate, modify or convey a specific copy of the covered work,
then the patent license you grant is automatically extended to all recipients
of the covered work and works based on it.
A patent license is *discriminatory* if it does not include within the scope of
its coverage, prohibits the exercise of, or is conditioned on the non-exercise
of one or more of the rights that are specifically granted under this License.
You may not convey a covered work if you are a party to an arrangement with a
third party that is in the business of distributing software, under which you
make payment to the third party based on the extent of your activity of
conveying the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory patent
license
- a) in connection with copies of the covered work conveyed by you (or copies
made from those copies), or
- b) primarily for and in connection with specific products or compilations
that contain the covered work, unless you entered into that arrangement, or
that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting any implied
license or other defenses to infringement that may otherwise be available to
you under applicable patent law.
### 12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not excuse
you from the conditions of this License. If you cannot convey a covered work so
as to satisfy simultaneously your obligations under this License and any other
pertinent obligations, then as a consequence you may not convey it at all. For
example, if you agree to terms that obligate you to collect a royalty for
further conveying from those to whom you convey the Program, the only way you
could satisfy both those terms and this License would be to refrain entirely
from conveying the Program.
### 13. Use with the GNU Affero General Public License.
Notwithstanding any other provision of this License, you have permission to
link or combine any covered work with a work licensed under version 3 of the
GNU Affero General Public License into a single combined work, and to convey
the resulting work. The terms of this License will continue to apply to the
part which is the covered work, but the special requirements of the GNU Affero
General Public License, section 13, concerning interaction through a network
will apply to the combination as such.
### 14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of the GNU
General Public License from time to time. Such new versions will be similar in
spirit to the present version, but may differ in detail to address new problems
or concerns.
Each version is given a distinguishing version number. If the Program specifies
that a certain numbered version of the GNU General Public License *or any later
version* applies to it, you have the option of following the terms and
conditions either of that numbered version or of any later version published by
the Free Software Foundation. If the Program does not specify a version number
of the GNU General Public License, you may choose any version ever published by
the Free Software Foundation.
If the Program specifies that a proxy can decide which future versions of the
GNU General Public License can be used, that proxy's public statement of
acceptance of a version permanently authorizes you to choose that version for
the Program.
Later license versions may give you additional or different permissions.
However, no additional obligations are imposed on any author or copyright
holder as a result of your choosing to follow a later version.
### 15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE
LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER
PARTIES PROVIDE THE PROGRAM *AS IS* WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE
QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
CORRECTION.
### 16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS
PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE
PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY
HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
### 17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided above cannot
be given local legal effect according to their terms, reviewing courts shall
apply local law that most closely approximates an absolute waiver of all civil
liability in connection with the Program, unless a warranty or assumption of
liability accompanies a copy of the Program in return for a fee.
## END OF TERMS AND CONDITIONS ###
### How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest possible
use to the public, the best way to achieve this is to make it free software
which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest to attach
them to the start of each source file to most effectively state the exclusion
of warranty; and each file should have at least the *copyright* line and a
pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short notice like
this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w` and `show c` should show the appropriate
parts of the General Public License. Of course, your program's commands might
be different; for a GUI interface, you would use an *about box*.
You should also get your employer (if you work as a programmer) or school, if
any, to sign a *copyright disclaimer* for the program, if necessary. For more
information on this, and how to apply and follow the GNU GPL, see
[http://www.gnu.org/licenses/](http://www.gnu.org/licenses/).
The GNU General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may consider
it more useful to permit linking proprietary applications with the library. If
this is what you want to do, use the GNU Lesser General Public License instead
of this License. But first, please read
[http://www.gnu.org/philosophy/why-not-lgpl.html](http://www.gnu.org/philosophy/why-not-lgpl.html).

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# Nanobake
NanoBake is a front-end application platform.
The main goals are to deliver multiple front-end applications on a single ESP32 devices,
and to simplify hardware support.
**Status: pre-alpha**
# Technologies
LCD and input drivers are based on `esp_lcd` from esp-idf
and `esp_lcd_touch` from the [ESP Registry](https://components.espressif.com/components/espressif/esp_lcd_touch).
Drawing is done by `lvgl` via `esp_lvgl_port`.
# Supported Devices
In theory, all hardware from the [Board Support Packages](https://github.com/espressif/esp-bsp/) project is supported.
In practice, there are pre-configured drivers available for these boards:
- Yellow Board / 2432S024
## License
[GNU General Public License Version 3](LICENSE.md)

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idf_component_register(
SRC_DIRS "."
INCLUDE_DIRS "."
REQUIRES nanobake esp_lcd_touch_cst816s esp_lcd_ili9341
)

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#ifndef NANOBAKE_BOARD_2432S024_H
#define NANOBAKE_BOARD_2432S024_H
#include "board_2432s024_display.h"
#include "board_2432s024_touch.h"
#endif // NANOBAKE_BOARD_2432S024_H

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#include "board_2432s024_display.h"
#include <esp_lcd_ili9341.h>
#include <esp_log.h>
#include <esp_err.h>
#include <esp_check.h>
#include <esp_lcd_panel_ops.h>
#include <driver/gpio.h>
#include <driver/spi_master.h>
#include <freertos/FreeRTOS.h>
#include <freertos/semphr.h>
static const char* TAG = "ili9341";
static SemaphoreHandle_t refresh_finish = NULL;
#define SELECTED_SPI_HOST SPI2_HOST
#define PIN_SCLK GPIO_NUM_14
#define PIN_MOSI GPIO_NUM_13
#define PIN_CS GPIO_NUM_15
#define PIN_DC GPIO_NUM_2
#define PIN_BACKLIGHT GPIO_NUM_27
#define HORIZONTAL_RESOLUTION 240
#define VERTICAL_RESOLUTION 320
#define BITS_PER_PIXEL 16
#define DRAW_BUFFER_HEIGHT 80
IRAM_ATTR static bool test_notify_refresh_ready(esp_lcd_panel_io_handle_t io_handle, esp_lcd_panel_io_event_data_t* edata, void* user_ctx) {
BaseType_t need_yield = pdFALSE;
xSemaphoreGiveFromISR(refresh_finish, &need_yield);
return (need_yield == pdTRUE);
}
static esp_err_t ili9341_create_display(nb_display_t* display) {
ESP_LOGI(TAG, "init started");
gpio_config_t io_conf = {
.pin_bit_mask = BIT64(PIN_BACKLIGHT),
.mode = GPIO_MODE_OUTPUT,
.pull_up_en = GPIO_PULLUP_DISABLE,
.pull_down_en = GPIO_PULLDOWN_DISABLE,
.intr_type = GPIO_INTR_DISABLE,
};
gpio_config(&io_conf);
const spi_bus_config_t bus_config = ILI9341_PANEL_BUS_SPI_CONFIG(
PIN_SCLK,
PIN_MOSI,
HORIZONTAL_RESOLUTION * DRAW_BUFFER_HEIGHT * (BITS_PER_PIXEL / 8)
);
ESP_RETURN_ON_ERROR(
spi_bus_initialize(SELECTED_SPI_HOST, &bus_config, SPI_DMA_CH_AUTO),
TAG,
"spi bus init failed"
);
const esp_lcd_panel_io_spi_config_t panel_io_config = ILI9341_PANEL_IO_SPI_CONFIG(
PIN_CS,
PIN_DC,
test_notify_refresh_ready,
NULL
);
ESP_RETURN_ON_ERROR(
esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)SELECTED_SPI_HOST, &panel_io_config, &display->io_handle),
TAG,
"failed to create panel"
);
ESP_LOGI(TAG, "install driver");
const esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = GPIO_NUM_NC,
.rgb_endian = LCD_RGB_ENDIAN_RGB,
.bits_per_pixel = BITS_PER_PIXEL,
};
ESP_RETURN_ON_ERROR(
esp_lcd_new_panel_ili9341(display->io_handle, &panel_config, &display->display_handle),
TAG,
"failed to create ili9341"
);
ESP_RETURN_ON_ERROR(
esp_lcd_panel_reset(display->display_handle),
TAG,
"failed to reset panel"
);
ESP_RETURN_ON_ERROR(
esp_lcd_panel_init(display->display_handle),
TAG,
"failed to init panel"
);
ESP_RETURN_ON_ERROR(
esp_lcd_panel_mirror(display->display_handle, true, false),
TAG,
"failed to set panel to mirror"
);
ESP_RETURN_ON_ERROR(
esp_lcd_panel_disp_on_off(display->display_handle, true),
TAG,
"failed to turn display on"
);
ESP_RETURN_ON_ERROR(
gpio_set_level(PIN_BACKLIGHT, 1),
TAG,
"failed to turn backlight on"
);
display->horizontal_resolution = HORIZONTAL_RESOLUTION;
display->vertical_resolution = VERTICAL_RESOLUTION;
display->draw_buffer_height = DRAW_BUFFER_HEIGHT;
display->bits_per_pixel = BITS_PER_PIXEL;
return ESP_OK;
}
nb_display_driver_t board_2432s024_create_display_driver() {
nb_display_driver_t driver = {
.name = "ili9341_2432s024",
.create_display = &ili9341_create_display
};
return driver;
}

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#ifndef NANOBAKE_BOARD_2432S024_DISPLAY_H
#define NANOBAKE_BOARD_2432S024_DISPLAY_H
#include <nb_display.h>
extern nb_display_driver_t board_2432s024_create_display_driver();
#endif //NANOBAKE_BOARD_2432S024_DISPLAY_H

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#include "board_2432s024_touch.h"
#include <esp_lcd_touch_cst816s.h>
#include <esp_err.h>
#include <driver/i2c.h>
#include <esp_check.h>
#define CST816_I2C_PORT (0)
const char* TAG = "cst816";
static esp_err_t cst816_init_io(esp_lcd_panel_io_handle_t* io_handle) {
// Init I2C
const i2c_config_t i2c_conf = {
.mode = I2C_MODE_MASTER,
.sda_io_num = GPIO_NUM_33,
.sda_pullup_en = GPIO_PULLUP_DISABLE,
.scl_io_num = GPIO_NUM_32,
.scl_pullup_en = GPIO_PULLUP_DISABLE,
.master.clk_speed = 400000
};
ESP_RETURN_ON_ERROR(i2c_param_config(CST816_I2C_PORT, &i2c_conf), TAG, "i2c config failed");
ESP_RETURN_ON_ERROR(i2c_driver_install(CST816_I2C_PORT, i2c_conf.mode, 0, 0, 0), TAG, "i2c driver install failed");
// Configure I2C
const esp_lcd_panel_io_i2c_config_t touch_io_config = ESP_LCD_TOUCH_IO_I2C_CST816S_CONFIG();
ESP_RETURN_ON_ERROR(esp_lcd_new_panel_io_i2c((esp_lcd_i2c_bus_handle_t)CST816_I2C_PORT, &touch_io_config, io_handle), TAG, "esp_lcd_panel creation failed");
return ESP_OK;
}
static esp_err_t cst816_create_touch(esp_lcd_panel_io_handle_t io_handle, esp_lcd_touch_handle_t* touch_handle) {
// Configure touch
esp_lcd_touch_config_t config = {
.x_max = 240,
.y_max = 320,
.rst_gpio_num = GPIO_NUM_25,
.int_gpio_num = GPIO_NUM_21,
.levels = {
.reset = 0,
.interrupt = 0,
},
.flags = {
.swap_xy = 0,
.mirror_x = 0,
.mirror_y = 0,
},
.interrupt_callback = NULL,
};
// Init touch
return esp_lcd_touch_new_i2c_cst816s(io_handle, &config, touch_handle);
}
nb_touch_driver_t board_2432s024_create_touch_driver() {
nb_touch_driver_t driver = {
.name = "cst816s_2432s024",
.init_io = cst816_init_io,
.create_touch = &cst816_create_touch
};
return driver;
}

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#ifndef NANOBAKE_BOARD_2432S024_TOUCH_H
#define NANOBAKE_BOARD_2432S024_TOUCH_H
#include <nb_touch.h>
nb_touch_driver_t board_2432s024_create_touch_driver();
#endif // NANOBAKE_BOARD_2432S024_TOUCH_H

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idf_component_register(
SRC_DIRS "src"
INCLUDE_DIRS "inc"
PRIV_INCLUDE_DIRS "src"
REQUIRES esp_lcd esp_lcd_touch driver
)

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#ifndef NANOBAKE_H
#define NANOBAKE_H
#include "nb_platform.h"
#endif //NANOBAKE_H

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#ifndef NANOBAKE_NB_DISPLAY_H
#define NANOBAKE_NB_DISPLAY_H
#include <esp_lcd_panel_io.h>
typedef struct nb_display nb_display_t;
struct nb_display {
bool io_initialized;
uint16_t horizontal_resolution;
uint16_t vertical_resolution;
uint16_t draw_buffer_height;
uint16_t bits_per_pixel;
esp_lcd_panel_io_handle_t io_handle;
esp_lcd_panel_handle_t display_handle;
};
typedef struct nb_display_driver nb_display_driver_t;
struct nb_display_driver {
const char name[32];
esp_err_t (*create_display)(nb_display_t* display);
};
extern esp_err_t nb_display_create(nb_display_driver_t driver, nb_display_t* display);
#endif // NANOBAKE_NB_DISPLAY_H

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#ifndef NANOBAKE_NB_PLATFORM_H
#define NANOBAKE_NB_PLATFORM_H
#include "nb_display.h"
#include "nb_touch.h"
#include <esp_err.h>
typedef struct nb_platform_config nb_platform_config_t;
struct nb_platform_config {
nb_display_driver_t display_driver;
nb_touch_driver_t touch_driver;
};
typedef struct nb_platform nb_platform_t;
struct nb_platform {
nb_display_t display;
nb_touch_t touch;
};
esp_err_t nb_platform_create(nb_platform_config_t config, nb_platform_t* platform);
#endif // NANOBAKE_NB_PLATFORM_H

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#ifndef NANOBAKE_NB_TOUCH_H
#define NANOBAKE_NB_TOUCH_H
#include "esp_lcd_touch.h"
#include <esp_lcd_panel_io.h>
typedef struct nb_touch_driver nb_touch_driver_t;
struct nb_touch_driver {
const char name[32];
esp_err_t (*init_io)(esp_lcd_panel_io_handle_t* io_handle);
esp_err_t (*create_touch)(esp_lcd_panel_io_handle_t io_handle, esp_lcd_touch_handle_t* touch_handle);
};
typedef struct nb_touch nb_touch_t;
struct nb_touch {
esp_lcd_panel_io_handle_t io_handle;
esp_lcd_touch_handle_t touch_handle;
};
esp_err_t nb_touch_create(nb_touch_driver_t driver, nb_touch_t* touch);
#endif // NANOBAKE_NB_TOUCH_H

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#include "nb_display.h"
#include "nb_internal.h"
#include <esp_check.h>
#include <esp_log.h>
esp_err_t nb_display_create(nb_display_driver_t driver, nb_display_t* display) {
ESP_RETURN_ON_ERROR(driver.create_display(display), nbi_tag, "failed to create driver");
return ESP_OK;
}

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#include "nb_internal.h"
const char* nbi_tag = "nanobake";

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#ifndef NANOBAKE_NB_INTERNAL_H
#define NANOBAKE_NB_INTERNAL_H
extern const char* nbi_tag;
#endif // NANOBAKE_NB_INTERNAL_H

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#include "nb_platform.h"
#include <esp_check.h>
#include "nb_display.h"
#include "nb_touch.h"
#include "nb_internal.h"
static const char* TAG = "nb_platform";
esp_err_t nb_platform_create(nb_platform_config_t config, nb_platform_t* platform) {
ESP_LOGI(TAG, "display with driver %s", config.display_driver.name);
ESP_RETURN_ON_ERROR(
nb_display_create(config.display_driver, &(platform->display)),
nbi_tag,
"display driver init failed"
);
ESP_LOGI(TAG, "touch with driver %s", config.touch_driver.name);
ESP_RETURN_ON_ERROR(
nb_touch_create(config.touch_driver, &(platform->touch)),
nbi_tag,
"touch driver init failed"
);
return ESP_OK;
}

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#include "nb_touch.h"
#include <esp_check.h>
#include "nb_internal.h"
esp_err_t nb_touch_create(nb_touch_driver_t driver, nb_touch_t* touch) {
ESP_RETURN_ON_ERROR(driver.init_io(&(touch->io_handle)), nbi_tag, "failed to init io");
ESP_RETURN_ON_ERROR(driver.create_touch(touch->io_handle, &(touch->touch_handle)), nbi_tag, "failed to create driver");
return ESP_OK;
}

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idf_component_register(
SRC_DIRS "."
INCLUDE_DIRS "."
REQUIRES nanobake board_2432s024
)

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dependencies:
espressif/esp_lcd_ili9341: "^2.0.0"
espressif/esp_lcd_touch_cst816s: "^1.0.3"
espressif/esp_lcd_touch: "1.1.1"
esp_lvgl_port: '1.4.0'
idf: '>=5.1'

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#include <esp_err.h>
#include <esp_log.h>
#include <esp_check.h>
#include <esp_lcd_panel_io.h>
#include <esp_lvgl_port.h>
#include <nanobake.h>
// Nanobake board support with drivers:
#include <board_2432s024_touch.h>
#include <board_2432s024_display.h>
#define EXAMPLE_LCD_DRAW_BUFF_DOUBLE (1)
#define EXAMPLE_LCD_DRAW_BUFF_HEIGHT (50)
static const char *TAG = "main";
// LVGL
static lv_disp_t* lvgl_disp = NULL;
static lv_indev_t* lvgl_touch_indev = NULL;
static esp_err_t app_lvgl_init(
nb_platform_t* platform
) {
const lvgl_port_cfg_t lvgl_cfg = {
.task_priority = 4,
.task_stack = 4096,
.task_affinity = -1, // core pinning
.task_max_sleep_ms = 500,
.timer_period_ms = 5
};
ESP_RETURN_ON_ERROR(lvgl_port_init(&lvgl_cfg), TAG, "lvgl port init failed");
// Add display
ESP_LOGD(TAG, "lvgl add display");
const lvgl_port_display_cfg_t disp_cfg = {
.io_handle = platform->display.io_handle,
.panel_handle = platform->display.display_handle,
.buffer_size = platform->display.horizontal_resolution * platform->display.draw_buffer_height * (platform->display.bits_per_pixel / 8),
.double_buffer = EXAMPLE_LCD_DRAW_BUFF_DOUBLE,
.hres = platform->display.horizontal_resolution,
.vres = platform->display.vertical_resolution,
.monochrome = false,
/* Rotation values must be same as used in esp_lcd for initial settings of the screen */
.rotation = {
.swap_xy = false,
.mirror_x = true,
.mirror_y = false,
},
.flags = {
.buff_dma = true,
}
};
lvgl_disp = lvgl_port_add_disp(&disp_cfg);
// Add touch
const lvgl_port_touch_cfg_t touch_cfg = {
.disp = lvgl_disp,
.handle = platform->touch.touch_handle,
};
lvgl_touch_indev = lvgl_port_add_touch(&touch_cfg);
ESP_RETURN_ON_FALSE(lvgl_touch_indev != NULL, ESP_FAIL, TAG, "failed to add touch to lvgl");
return ESP_OK;
}
static void app_button_cb(lv_event_t* e) {
ESP_LOGI(TAG, "tap");
}
static void app_main_lvgl(nb_platform_t* platform) {
lv_obj_t *scr = lv_scr_act();
lvgl_port_lock(0);
lv_obj_t *label = lv_label_create(scr);
lv_label_set_recolor(label, true);
lv_obj_set_width(label, 240);
lv_obj_set_style_text_align(label, LV_TEXT_ALIGN_CENTER, 0);
lv_label_set_text(label, "Hello, world!");
lv_obj_align(label, LV_ALIGN_CENTER, 0, -30);
lv_obj_t *btn = lv_btn_create(scr);
label = lv_label_create(btn);
lv_label_set_text_static(label, "Button");
lv_obj_align(btn, LV_ALIGN_BOTTOM_MID, 0, -30);
lv_obj_add_event_cb(btn, app_button_cb, LV_EVENT_CLICKED, NULL);
lvgl_port_unlock();
}
void app_main(void) {
nb_platform_config_t platform_config = {
.touch_driver = board_2432s024_create_touch_driver(),
.display_driver = board_2432s024_create_display_driver()
};
static nb_platform_t platform;
ESP_ERROR_CHECK(nb_platform_create(platform_config, &platform));
ESP_ERROR_CHECK(app_lvgl_init(&platform));
app_main_lvgl(&platform);
}