63 lines
1.4 KiB
Arduino
63 lines
1.4 KiB
Arduino
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#include <ESP8266WiFi.h>
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#include <ESPAsyncTCP.h>
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extern "C" {
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#include <osapi.h>
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#include <os_type.h>
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}
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#include "config.h"
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static os_timer_t intervalTimer;
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static void replyToServer(void* arg) {
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AsyncClient* client = reinterpret_cast<AsyncClient*>(arg);
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// send reply
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if (client->space() > 32 && client->canSend()) {
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char message[32];
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sprintf(message, "this is from %s", WiFi.localIP().toString().c_str());
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client->add(message, strlen(message));
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client->send();
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}
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}
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/* event callbacks */
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static void handleData(void* arg, AsyncClient* client, void *data, size_t len) {
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Serial.printf("\n data received from %s \n", client->remoteIP().toString().c_str());
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Serial.write((uint8_t*)data, len);
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os_timer_arm(&intervalTimer, 2000, true); // schedule for reply to server at next 2s
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}
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void onConnect(void* arg, AsyncClient* client) {
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Serial.printf("\n client has been connected to %s on port %d \n", SERVER_HOST_NAME, TCP_PORT);
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replyToServer(client);
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}
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void setup() {
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Serial.begin(115200);
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delay(20);
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// connects to access point
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WiFi.mode(WIFI_STA);
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WiFi.begin(SSID, PASSWORD);
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while (WiFi.status() != WL_CONNECTED) {
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Serial.print('.');
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delay(500);
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}
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AsyncClient* client = new AsyncClient;
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client->onData(&handleData, client);
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client->onConnect(&onConnect, client);
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client->connect(SERVER_HOST_NAME, TCP_PORT);
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os_timer_disarm(&intervalTimer);
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os_timer_setfn(&intervalTimer, &replyToServer, client);
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}
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void loop() {
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}
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