59 lines
1.4 KiB
Markdown
59 lines
1.4 KiB
Markdown
# ESP32 ESP-IDF component for tachometer (via rotary encoder)
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## Tested on
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1. [ESP32 ESP-IDF v5.5.2](https://docs.espressif.com/projects/esp-idf/en/v5.5.2/esp32/index.html)
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## SAST Tools
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[PVS-Studio](https://pvs-studio.com/pvs-studio/?utm_source=website&utm_medium=github&utm_campaign=open_source) - static analyzer for C, C++, C#, and Java code.
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## Attention
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1. For correct operation, please enable the following settings in the menuconfig:
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```text
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PCNT_CTRL_FUNC_IN_IRAM
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PCNT_ISR_IRAM_SAF
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```
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## Using
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In an existing project, run the following command to install the components:
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```text
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cd ../your_project/components
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git clone http://git.zh.com.ru/esp_components/zh_tachometer
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```
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In the application, add the component:
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```c
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#include "zh_tachometer.h"
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```
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## Examples
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```c
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#include "zh_tachometer.h"
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zh_tachometer_handle_t tachometer_handle = {0};
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void app_main(void)
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{
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esp_log_level_set("zh_tachometer", ESP_LOG_ERROR);
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zh_tachometer_init_config_t config = ZH_TACHOMETER_INIT_CONFIG_DEFAULT();
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config.a_gpio_number = GPIO_NUM_26;
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config.b_gpio_number = GPIO_NUM_27;
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config.encoder_pulses = 3600;
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zh_tachometer_init(&config, &tachometer_handle);
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for (;;)
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{
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uint16_t value = 0;
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zh_tachometer_get(&tachometer_handle, &value);
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printf("Tachometer value is %d rpm.\n", value);
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vTaskDelay(100 / portTICK_PERIOD_MS);
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}
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}
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```
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