32 lines
974 B
Markdown
32 lines
974 B
Markdown
# **ESP32 DevKit v1 资料**
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链接：https://github.com/Nicholas3388/LuaNode
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## 一、GPIO的基本操作
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可以看到LED灯的IO口是D2，那么对应的闪烁LED灯的例程如下所示：
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```c
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#define BLINK_GPIO 2
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void app_main(void)
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{
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gpio_reset_pin(BLINK_GPIO);
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/* Set the GPIO as a push/pull output */
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gpio_set_direction(BLINK_GPIO, GPIO_MODE_OUTPUT);
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while(1) {
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/* Blink off (output low) */
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printf("Turning off the LED\n");
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gpio_set_level(BLINK_GPIO, 0);
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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/* Blink on (output high) */
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printf("Turning on the LED\n");
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gpio_set_level(BLINK_GPIO, 1);
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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}
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```
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开发板上的D表示GPIO的意思，D2就表示GPIO2，其他IO口也是类似的。
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<img src="C:\Users\Administrator\AppData\Roaming\Typora\typora-user-images\image-20220828213702936.png" alt="image-20220828213702936" style="zoom:50%;" /> |