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https://github.com/alexandrebobkov/ESP-Nodes.git
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102 lines
3.9 KiB
C
Executable File
102 lines
3.9 KiB
C
Executable File
/* ESPNOW Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#ifndef ESPNOW_EXAMPLE_H
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#define ESPNOW_EXAMPLE_H
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/* ESPNOW can work in both station and softap mode. It is configured in menuconfig. */
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#if CONFIG_ESPNOW_WIFI_MODE_STATION
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#define ESPNOW_WIFI_MODE WIFI_MODE_STA
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#define ESPNOW_WIFI_IF ESP_IF_WIFI_STA
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#else
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#define ESPNOW_WIFI_MODE WIFI_MODE_AP
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#define ESPNOW_WIFI_IF ESP_IF_WIFI_AP
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#endif
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#define ESPNOW_QUEUE_SIZE 6
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#define IS_BROADCAST_ADDR(addr) (memcmp(addr, s_example_broadcast_mac, ESP_NOW_ETH_ALEN) == 0)
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typedef enum {
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EXAMPLE_ESPNOW_SEND_CB,
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EXAMPLE_ESPNOW_RECV_CB,
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} example_espnow_event_id_t;
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typedef struct {
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uint8_t mac_addr[ESP_NOW_ETH_ALEN];
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esp_now_send_status_t status;
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} example_espnow_event_send_cb_t;
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typedef struct {
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uint8_t mac_addr[ESP_NOW_ETH_ALEN];
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uint8_t *data;
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int data_len;
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} example_espnow_event_recv_cb_t;
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typedef union {
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example_espnow_event_send_cb_t send_cb;
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example_espnow_event_recv_cb_t recv_cb;
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} example_espnow_event_info_t;
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/* When ESPNOW sending or receiving callback function is called, post event to ESPNOW task. */
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typedef struct {
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example_espnow_event_id_t id;
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example_espnow_event_info_t info;
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} example_espnow_event_t;
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enum {
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EXAMPLE_ESPNOW_DATA_BROADCAST,
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EXAMPLE_ESPNOW_DATA_UNICAST,
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EXAMPLE_ESPNOW_DATA_MAX,
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};
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/* User defined field of ESPNOW data in this example. */
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typedef struct {
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uint8_t type; // Broadcast or unicast ESPNOW data.
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uint8_t state; // Indicate that if has received broadcast ESPNOW data or not.
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uint16_t seq_num; // Sequence number of ESPNOW data.
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uint16_t crc; // CRC16 value of ESPNOW data.
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uint32_t magic; // Magic number which is used to determine which device to send unicast ESPNOW data.
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uint8_t payload[2]; // Real payload of ESPNOW data.
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} __attribute__((packed)) example_espnow_data_t;
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/*typedef struct {
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uint8_t type; // Broadcast or unicast ESPNOW data.s
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uint16_t seq_num; // Sequence number of ESPNOW data.
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uint16_t crc; // CRC16 value of ESPNOW data.
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uint8_t x_axis;
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uint8_t y_axis;
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bool nav_bttn;
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uint8_t motor1_rpm_pcm;
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uint8_t motor2_rpm_pcm;
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uint8_t motor3_rpm_pcm;
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uint8_t motor4_rpm_pcm;
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} __attribute__((packed)) sensors_data_t;
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typedef struct {
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int len; // Length of ESPNOW data to be sent, unit: byte.
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uint8_t *buffer; // Buffer; pointer to the data struct.
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uint8_t dest_mac[ESP_NOW_ETH_ALEN]; // MAC address of destination device.
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} espnow_data_packet_t;*/
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/* Parameters of sending ESPNOW data. */
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typedef struct {
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bool unicast; // Send unicast ESPNOW data.
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bool broadcast; // Send broadcast ESPNOW data.
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uint8_t state; // Indicate that if has received broadcast ESPNOW data or not.
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uint32_t magic; // Magic number which is used to determine which device to send unicast ESPNOW data.
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uint16_t count; // Total count of unicast ESPNOW data to be sent.
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uint16_t delay; // Delay between sending two ESPNOW data, unit: ms.
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int len; // Length of ESPNOW data to be sent, unit: byte.
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uint8_t *buffer; // Buffer pointing to ESPNOW data.
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uint8_t dest_mac[ESP_NOW_ETH_ALEN]; // MAC address of destination device.
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} example_espnow_send_param_t;
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#endif
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