39 lines
903 B
C++
39 lines
903 B
C++
#include <esp_now.h>
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#include <WiFi.h>
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// Structure to receive data
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typedef struct struct_message {
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int a0;
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int a1;
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int a2;
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} struct_message;
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// Create a struct_message instance
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struct_message myData;
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// Callback function when data is received
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void OnDataRecv(const uint8_t *mac, const uint8_t *incomingData, int len) {
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memcpy(&myData, incomingData, sizeof(myData));
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Serial.printf("%lu Analog_in A0: %4d, A1: %4d, A2: %4d\n", micros(), myData.a0, myData.a1, myData.a2);
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}
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void setup() {
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Serial.begin(115200);
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// Set device as a Wi-Fi Station
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WiFi.mode(WIFI_STA);
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// Init ESP-NOW
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if (esp_now_init() != ESP_OK) {
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Serial.println("Error initializing ESP-NOW");
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return;
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}
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// Register callback function to receive data
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esp_now_register_recv_cb(OnDataRecv);
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}
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void loop() {
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// Data is received via callback, nothing needed here
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}
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