Hi Sara,
I’m having a little problem with the recent ESP NOW CYD sketch. Have you any idea what I’m doing wrong?
I am using a couple of ESP32 dev kit v1 modules. 
Thanks
 
When attempting to compile the Sender code for the ESP32 CYD ESP NOW sketch, The error message: ”
exit status 1
Compilation error: ‘wifi_tx_info_t’ does not name a type; did you mean ‘wifi_sta_info_t’?
This is referring to line 56

// Callback when data is sent
void OnDataSent(const wifi_tx_info_t* mac_addr, esp_now_send_status_t status) {
  char macStr[18];
  Serial.print(“Packet to: “);
  // Copies the receiver mac address to a string
  snprintf(macStr, sizeof(macStr), “%02x:%02x:%02x:%02x:%02x:%02x”,
           mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
  Serial.print(macStr);
  Serial.print(” send status:\t”);
  Serial.println(status == ESP_NOW_SEND_SUCCESS ? “Delivery Success” : “Delivery Fail”);
}
 
I tried changing the type to ‘wifi_sta_info_t but I just got another error message referring to line 78
‘invalid conversion from void()(const wifi_sta_info_t, esp_now_send_status_t) to ‘esp_now-send_cb_t'{aka ‘void()
const unsigned char,esp_now_send_status_t)}[-fpermissive]