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添加智能灯固件代码

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kerwincui
2021-07-13 17:14:51 +08:00
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6
firmware/esp-idf/wumei-smart-firmware/examples/peripherals/rmt/morse_code/CMakeLists.txt Normal file
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# The following lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(morse_code)

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firmware/esp-idf/wumei-smart-firmware/examples/peripherals/rmt/morse_code/Makefile Normal file
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#
# This is a project Makefile. It is assumed the directory this Makefile resides in is a
# project subdirectory.
#
PROJECT_NAME := morse_code
include $(IDF_PATH)/make/project.mk

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firmware/esp-idf/wumei-smart-firmware/examples/peripherals/rmt/morse_code/README.md Normal file
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# RMT Transmit Example -- Morse Code
(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example mainly illustrates how to transmit the [Morse code](https://en.wikipedia.org/wiki/Morse_code) using the RMT driver.
## How to Use Example
### Hardware Required
* A development board with ESP32 SoC (e.g., ESP32-DevKitC, ESP-WROVER-KIT, etc.)
* A USB cable for Power supply and programming
* A LED, a speaker or an earphone
Connection :
```
330R LED
GPIO18 +----/\/\/\----+------|>|-----+ GND
|
| /|
+-+ | Speaker
| | | or
+-+ | earphone
| \|
|
+--------------+ GND
```
### Configure the Project
Open the project configuration menu (`idf.py menuconfig`).
In the `Example Connection Configuration` menu:
* Set the GPIO number used for transmitting the IR signal under `RMT TX GPIO` optin.
### Build and Flash
Run `idf.py -p PORT flash monitor` to build, flash and monitor the project.
(To exit the serial monitor, type ``Ctrl-]``.)
See the [Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/index.html) for full steps to configure and use ESP-IDF to build projects.
## Example Output
To be able to see and hear the message output by the RMT, connect an LED and a speaker or an earphone (be careful it might make a large noise) to the GPIO you set in the menuconfig.
Run the example, you will see the following output log:
``` bash
...
I (304) example: Configuring transmitter
I (2814) example: Transmission complete
...
```
## Troubleshooting
For any technical queries, please open an [issue] (https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.

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firmware/esp-idf/wumei-smart-firmware/examples/peripherals/rmt/morse_code/main/CMakeLists.txt Normal file
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idf_component_register(SRCS "morse_code_main.c"
INCLUDE_DIRS ".")

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firmware/esp-idf/wumei-smart-firmware/examples/peripherals/rmt/morse_code/main/Kconfig.projbuild Normal file
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menu "Example Configuration"
config EXAMPLE_RMT_TX_GPIO
int "RMT TX GPIO"
default 18
help
Set the GPIO number used for transmitting the RMT signal.
endmenu

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firmware/esp-idf/wumei-smart-firmware/examples/peripherals/rmt/morse_code/main/component.mk Normal file
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#
# Main Makefile. This is basically the same as a component makefile.
#
# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)

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firmware/esp-idf/wumei-smart-firmware/examples/peripherals/rmt/morse_code/main/morse_code_main.c Normal file
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/* RMT example -- Morse Code
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "driver/rmt.h"
static const char *TAG = "example";
#define RMT_TX_CHANNEL RMT_CHANNEL_0
/*
* Prepare a raw table with a message in the Morse code
*
* The message is "ESP" : . ... .--.
*
* The table structure represents the RMT item structure:
* {duration, level, duration, level}
*
*/
static const rmt_item32_t morse_esp[] = {
// E : dot
{{{ 32767, 1, 32767, 0 }}}, // dot
{{{ 32767, 0, 32767, 0 }}}, // SPACE
// S : dot, dot, dot
{{{ 32767, 1, 32767, 0 }}}, // dot
{{{ 32767, 1, 32767, 0 }}}, // dot
{{{ 32767, 1, 32767, 0 }}}, // dot
{{{ 32767, 0, 32767, 0 }}}, // SPACE
// P : dot, dash, dash, dot
{{{ 32767, 1, 32767, 0 }}}, // dot
{{{ 32767, 1, 32767, 1 }}},
{{{ 32767, 1, 32767, 0 }}}, // dash
{{{ 32767, 1, 32767, 1 }}},
{{{ 32767, 1, 32767, 0 }}}, // dash
{{{ 32767, 1, 32767, 0 }}}, // dot
// RMT end marker
{{{ 0, 1, 0, 0 }}}
};
/*
* Initialize the RMT Tx channel
*/
static void rmt_tx_init(void)
{
rmt_config_t config = RMT_DEFAULT_CONFIG_TX(CONFIG_EXAMPLE_RMT_TX_GPIO, RMT_TX_CHANNEL);
// enable the carrier to be able to hear the Morse sound
// if the RMT_TX_GPIO is connected to a speaker
config.tx_config.carrier_en = true;
config.tx_config.carrier_duty_percent = 50;
// set audible career frequency of 611 Hz
// actually 611 Hz is the minimum, that can be set
// with current implementation of the RMT API
config.tx_config.carrier_freq_hz = 611;
// set the maximum clock divider to be able to output
// RMT pulses in range of about one hundred milliseconds
config.clk_div = 255;
ESP_ERROR_CHECK(rmt_config(&config));
ESP_ERROR_CHECK(rmt_driver_install(config.channel, 0, 0));
}
void app_main(void *ignore)
{
ESP_LOGI(TAG, "Configuring transmitter");
rmt_tx_init();
while (1) {
ESP_ERROR_CHECK(rmt_write_items(RMT_TX_CHANNEL, morse_esp, sizeof(morse_esp) / sizeof(morse_esp[0]), true));
ESP_LOGI(TAG, "Transmission complete");
vTaskDelay(1000 / portTICK_PERIOD_MS);
}
}