esp32-idf sx1268主机空中唤醒sx1268从机代码
时间: 2023-07-10 18:38:49 浏览: 227
以下是ESP32-IDF上实现SX1268主机空中唤醒SX1268从机的示例代码:
主机代码:
```
#include "esp_now.h"
#include "WiFi.h"
#include <SPI.h>
#include <LoRa.h>
// 定义唤醒信号的SSID和密码
#define WIFI_SSID "your_wifi_ssid"
#define WIFI_PASS "your_wifi_password"
// 定义唤醒信号的MAC地址
uint8_t wakeup_signal_mac[] = {0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC};
// 定义SX1268芯片的引脚
#define LORA_SS_PIN 18
#define LORA_DIO0_PIN 26
#define LORA_DIO1_PIN 33
#define LORA_DIO2_PIN 32
#define LORA_RST_PIN 14
// 初始化Wi-Fi模块和ESP-NOW协议
void setup() {
Serial.begin(115200);
WiFi.begin(WIFI_SSID, WIFI_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
if (esp_now_init() != ESP_OK) {
Serial.println("Error initializing ESP-NOW");
return;
}
esp_now_set_self_role(ESP_NOW_ROLE_CONTROLLER);
esp_now_register_send_cb([](const uint8_t* mac, esp_now_send_status_t status) {
Serial.printf("Send status: %d\n", status);
});
// 初始化LoRa模块
LoRa.setPins(LORA_SS_PIN, LORA_DIO0_PIN, LORA_DIO1_PIN);
LoRa.setSPIFrequency(10E6);
LoRa.begin(433E6);
LoRa.setSpreadingFactor(7);
}
// 发送唤醒信号
void send_wakeup_signal() {
esp_now_send(wakeup_signal_mac, NULL, 0);
}
// 主程序
void loop() {
delay(1000);
Serial.println("Sending wakeup signal...");
send_wakeup_signal();
// 执行主程序任务
// ...
}
```
从机代码:
```
#include "esp_now.h"
#include <SPI.h>
#include <LoRa.h>
// 定义唤醒信号的MAC地址
uint8_t wakeup_signal_mac[] = {0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC};
// 定义SX1268芯片的引脚
#define LORA_SS_PIN 18
#define LORA_DIO0_PIN 26
#define LORA_DIO1_PIN 33
#define LORA_DIO2_PIN 32
#define LORA_RST_PIN 14
// 初始化ESP-NOW协议
void setup() {
Serial.begin(115200);
if (esp_now_init() != ESP_OK) {
Serial.println("Error initializing ESP-NOW");
return;
}
esp_now_set_self_role(ESP_NOW_ROLE_SLAVE);
esp_now_register_recv_cb([](const uint8_t* mac, const uint8_t* data, int len) {
Serial.println("Wakeup signal received!");
// 执行唤醒后的任务
// ...
});
esp_now_add_peer(wakeup_signal_mac, ESP_NOW_ROLE_CONTROLLER, 1, NULL, 0);
// 初始化LoRa模块
LoRa.setPins(LORA_SS_PIN, LORA_DIO0_PIN, LORA_DIO1_PIN);
LoRa.setSPIFrequency(10E6);
LoRa.begin(433E6);
LoRa.setSpreadingFactor(7);
}
// 从机程序
void loop() {
delay(1000);
// 执行从机程序任务
// ...
}
```
需要注意的是,以上代码仅为示例代码,具体实现需要根据具体的硬件和应用场景进行调整和优化。同时,需要进行充分的测试和验证,确保系统的稳定性和可靠性。
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