307 lines
6.8 KiB
C++
307 lines
6.8 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 warehouses, Seoul
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//
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//
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// 2021 02 15
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//
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// this module will be an esp-now node in a group.
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// like, a bird in a group of birds.
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//
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// esp-now @ esp8266 w/ broadcast address (FF:FF:FF:FF:FF:FF)
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// always broadcasting. everyone is 'talkative'.
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//
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//==========<configurations>===========
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//
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// 'HAVE_CLIENT'
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// --> i have a client. enable the client task.
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//
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// 'SERIAL_SWAP'
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// --> UART pin swapped.
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// you want this, when you want a bi-directional comm. to external client boards (e.g. teensy).
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//
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// 'DISABLE_AP'
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// --> (questioning)...
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//
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//==========</configurations>==========
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//==========<preset>===========
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//
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// (1) standalone
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#if 1
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// (2) osc client (the ROOT)
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#elif 0
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#define SERIAL_SWAP
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#define HAVE_CLIENT
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// (3) sampler client
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#elif 0
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#define SERIAL_SWAP
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#define HAVE_CLIENT
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#define DISABLE_AP
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//
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#endif
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//
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//==========</preset>==========
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//============<identity key>============
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#define ID_KEY 151
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//============</identity key>===========
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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 5
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//
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// 'MONITORING_SERIAL'
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//
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// --> sometimes, the 'Serial' is in use (for example, 'osc' node)
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// then, use 'Serial1' - D4/GPIO2/TDX1 @ nodemcu (this is TX only.)
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//
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// --> otherwise, MONITORING_SERIAL == Serial.
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//
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#if defined(SERIAL_SWAP)
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#define MONITORING_SERIAL (Serial1)
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#else
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#define MONITORING_SERIAL (Serial)
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#endif
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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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//post & addresses
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#include "../../post.h"
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//espnow
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#include <ESP8266WiFi.h>
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#include <espnow.h>
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//task
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#include <TaskScheduler.h>
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Scheduler runner;
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//-*-*-*-*-*-*-*-*-*-*-*-*-
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void taak_on() {
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Serial.println("taak_on!");
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digitalWrite(D6, HIGH);
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}
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Task taak_on_task(0, TASK_ONCE, &taak_on);
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void taak_off() {
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Serial.println("taak_off!");
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digitalWrite(D6, LOW);
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}
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Task taak_off_task(0, TASK_ONCE, &taak_off);
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//*-*-*-*-*-*-*-*-*-*-*-*-*
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//
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extern Task hello_task;
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static int hello_delay = 0;
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void hello() {
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//
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Hello hello = {
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ID_KEY
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};
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//
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uint8_t frm_size = sizeof(Hello) + 2;
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uint8_t frm[frm_size];
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frm[0] = '{';
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memcpy(frm + 1, (uint8_t *) &hello, sizeof(Hello));
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frm[frm_size - 1] = '}';
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//
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esp_now_send(NULL, frm, frm_size); // just broadcast.
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//
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MONITORING_SERIAL.write(frm, frm_size);
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MONITORING_SERIAL.println(" ==(esp_now_send/BROADCAST)==> ");
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//
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if (hello_delay > 0) {
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if (hello_delay < 100) hello_delay = 100;
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hello_task.restartDelayed(hello_delay);
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}
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}
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Task hello_task(0, TASK_ONCE, &hello);
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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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// on 'Note'
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void onNoteHandler(Note & n) {
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//is it for me?
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if (n.pitch == ID_KEY) {
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//
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if (n.velocity < 0) n.velocity = 0;
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//taak_on && taak_off
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if (n.velocity == 0) {
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if (n.onoff == 1) {
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taak_on_task.restartDelayed(10);
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} else {
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taak_off_task.restartDelayed(10);
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}
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}
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//taak_hit
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else {
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taak_on_task.restartDelayed(10);
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taak_off_task.restartDelayed(10 + n.velocity * 2);
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}
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}
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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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//
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#if defined(HAVE_CLIENT)
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Serial.write(incomingData, len); // we share it w/ the client.
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#endif
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// on 'Note'
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if (incomingData[0] == '[' && incomingData[len - 1] == ']' && len == (sizeof(Note) + 2)) {
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Note note;
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memcpy((uint8_t *) ¬e, incomingData + 1, sizeof(Note));
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//
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MONITORING_SERIAL.println(note.to_string());
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//
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onNoteHandler(note);
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//
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}
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}
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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) MONITORING_SERIAL.println("Delivery failed!");
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}
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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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//info
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Serial.println();
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Serial.println();
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Serial.println("\"hi, i m your postman.\"");
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Serial.println("-");
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Serial.println("- * info >>>");
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#if defined(ID_KEY)
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Serial.println("- identity (key): " + String(ID_KEY));
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#endif
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Serial.println("- mac address: " + WiFi.macAddress());
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Serial.println("- wifi channel: " + String(WIFI_CHANNEL));
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Serial.println("-");
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Serial.println("- * conf >>>");
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#if defined(HAVE_CLIENT)
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Serial.println("- ======== 'HAVE_CLIENT' ========");
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#endif
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#if defined(SERIAL_SWAP)
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Serial.println("- ======== 'SERIAL_SWAP' ========");
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#endif
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#if defined(DISABLE_AP)
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Serial.println("- ======== 'DISABLE_AP' ========");
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#endif
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Serial.println("-");
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Serial.println("\".-.-.-. :)\"");
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Serial.println();
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//wifi
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WiFiMode_t node_type = WIFI_AP_STA;
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#if defined(DISABLE_AP)
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system_phy_set_max_tpw(0);
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node_type = WIFI_STA;
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#endif
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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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Serial.println("-");
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Serial.println("- we will broadcast everything. ==> add only the 'broadcast peer' (FF:FF:FF:FF:FF:FF).");
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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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Serial.println("-");
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Serial.println("\".-.-.-. :)\"");
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Serial.println();
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#if defined(SERIAL_SWAP)
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Serial.println("- ======== 'SERIAL_SWAP' ========");
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// a proper say goodbye.
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Serial.println("\"bye, i will do 'swap' in 1 second. find me on alternative pins!\"");
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Serial.println("\" hint: osc wiring ==> esp8266(serial.swap) <-> teensy(serial3)\"");
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Serial.println("-");
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Serial.println("\".-.-.-. :)\"");
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delay(1000); // flush out unsent serial messages.
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// moving...
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Serial.swap(); // use RXD2/TXD2 pins, afterwards.
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delay(100); // wait re-initialization of the 'Serial'
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#endif
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//pinmode
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pinMode(D6, OUTPUT);
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//tasks
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runner.addTask(hello_task);
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runner.addTask(taak_on_task);
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runner.addTask(taak_off_task);
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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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