Dooho Yi
288ddd88d5
+ peer book listing (debug) + no addressbook/peer list -> all go broadcast! + wifi_channel == 1 for later (https://github.com/espressif/arduino-esp32/issues/878#issuecomment-578885352)
125 lines
2.5 KiB
C++
125 lines
2.5 KiB
C++
//
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// wirelessly connected cloud (based on ESP-NOW, a kind of LPWAN?)
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//
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//
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// Conversation about the ROOT @ SEMA storage, Seoul
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//
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//
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// 2021 02 21
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//
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// broadcast tx/rx test with esp8266
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//============<parameters>============
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//
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#define LED_PERIOD (11111)
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#define LED_ONTIME (1)
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#define LED_GAPTIME (222)
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//
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#define WIFI_CHANNEL 1
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//
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//============</parameters>===========
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//============<board-specifics>============
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#if defined(ARDUINO_FEATHER_ESP32) // featheresp32
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#define LED_PIN 13
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#else
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#define LED_PIN 2
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#endif
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//============</board-specifics>===========
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//arduino
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#include <Arduino.h>
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//espnow
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#include <ESP8266WiFi.h>
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#include <espnow.h>
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// on 'sent'
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void onDataSent(uint8_t *mac_addr, uint8_t sendStatus) {
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if (sendStatus != 0) Serial.println("Delivery failed!");
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}
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// on 'receive'
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void onDataReceive(uint8_t * mac, uint8_t *incomingData, uint8_t len) {
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Serial.write(incomingData, len);
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Serial.println();
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}
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//task
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#include <TaskScheduler.h>
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Scheduler runner;
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//task #0 : blink led
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extern Task blink_task;
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void blink() {
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//
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static int count = 0;
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count++;
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//
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switch (count % 4) {
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case 0:
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digitalWrite(LED_PIN, LOW); // first ON
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blink_task.delay(LED_ONTIME);
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break;
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case 1:
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digitalWrite(LED_PIN, HIGH); // first OFF
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blink_task.delay(LED_GAPTIME);
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break;
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case 2:
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digitalWrite(LED_PIN, LOW); // second ON
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blink_task.delay(LED_ONTIME);
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break;
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case 3:
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digitalWrite(LED_PIN, HIGH); // second OFF
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blink_task.delay(LED_PERIOD - 2* LED_ONTIME - LED_GAPTIME);
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break;
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}
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}
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Task blink_task(0, TASK_FOREVER, &blink, &runner, true); // -> ENABLED, at start-up.
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//task #1 : regular tx
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void espnow_transmit() {
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//
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String hello = "hello. from ... " + String(WiFi.macAddress());
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esp_now_send(NULL, (uint8_t *) hello.c_str(), hello.length());
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//
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}
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Task espnow_transmit_task(1000, TASK_FOREVER, &espnow_transmit, &runner, true); // by default, ENABLED
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//
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void setup() {
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//led
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pinMode(LED_PIN, OUTPUT);
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//serial
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Serial.begin(115200);
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delay(100);
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//wifi
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WiFiMode_t node_type = WIFI_AP_STA;
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WiFi.mode(node_type);
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//esp-now
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if (esp_now_init() != 0) {
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Serial.println("Error initializing ESP-NOW");
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return;
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}
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esp_now_set_self_role(ESP_NOW_ROLE_COMBO);
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esp_now_register_send_cb(onDataSent);
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esp_now_register_recv_cb(onDataReceive);
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//
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uint8_t broadcastmac[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
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esp_now_add_peer(broadcastmac, ESP_NOW_ROLE_COMBO, 1, NULL, 0);
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}
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void loop() {
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//
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runner.execute();
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//
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}
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