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Fix the return value of esp_now_send()
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@ -48,6 +48,7 @@ extern "C" {
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#define ESP_ERR_ESPNOW_NOT_FOUND (ESP_ERR_ESPNOW_BASE + 4) /*!< ESPNOW peer is not found */
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#define ESP_ERR_ESPNOW_INTERNAL (ESP_ERR_ESPNOW_BASE + 5) /*!< Internal error */
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#define ESP_ERR_ESPNOW_EXIST (ESP_ERR_ESPNOW_BASE + 6) /*!< ESPNOW peer has existed */
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#define ESP_ERR_ESPNOW_IF (ESP_ERR_ESPNOW_BASE + 7) /*!< Interface error */
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#define ESP_NOW_ETH_ALEN 6 /*!< Length of ESPNOW peer MAC address */
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#define ESP_NOW_KEY_LEN 16 /*!< Length of ESPNOW peer local master key */
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@ -191,6 +192,7 @@ esp_err_t esp_now_unregister_send_cb(void);
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* - ESP_ERR_ESPNOW_INTERNAL : internal error
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* - ESP_ERR_ESPNOW_NO_MEM : out of memory
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* - ESP_ERR_ESPNOW_NOT_FOUND : peer is not found
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* - ESP_ERR_ESPNOW_IF : current WiFi interface doesn't match that of peer
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*/
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esp_err_t esp_now_send(const uint8_t *peer_addr, const uint8_t *data, size_t len);
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