-
Notifications
You must be signed in to change notification settings - Fork 0
/
pcrelay.ino
106 lines (92 loc) · 2.77 KB
/
pcrelay.ino
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
#include <ESP8266WiFi.h>
#include <ESPAsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <AsyncElegantOTA.h>
#include <PubSubClient.h>
// wifi
const char* ssid = "YOUR SSID";
const char* password = "YOUR PASSWORD";
// mqtt
const char* mqtt_server = "YOUR MQTT BROKER IP";
const char* mqtt_client_name = "YOUR CLIENT NAME";
const char* mqtt_user = "YOUR MQTT USER"; // if you don't have an account uncomment line 91 and 103, and comment the ones above them
const char* mqtt_pass = "YOUR MQTT PASSWORD";
const char* command_topic = "YOUR COMMAND TOPIC";
WiFiClient espClient;
PubSubClient client(espClient);
// relay
const int relayPin = D1; // do not change for Wemos D1 Mini and relay shield
const long interval = 1000;
bool check_number(String str) {
for (int i = 0; i < str.length(); i++){
if (isDigit(str[i]) == false)
return false;
}
return true;
}
AsyncWebServer server(80);
void callback(String topic, byte* message, unsigned int length) {
Serial.print("Message arrived on topic: ");
Serial.print(topic);
Serial.print(". Message: ");
String messageTemp;
for (int i = 0; i < length; i++) {
Serial.print((char)message[i]);
messageTemp += (char)message[i];
}
Serial.println();
messageTemp.toLowerCase();
if(topic==command_topic){
if(check_number(messageTemp) == false) {
if(messageTemp == "on" or messageTemp == "off"){
digitalWrite(relayPin, HIGH);
delay(interval);
digitalWrite(relayPin, LOW);
}
} else {
digitalWrite(relayPin, HIGH);
delay((messageTemp.toInt() % 11) * 1000);
digitalWrite(relayPin, LOW);
}
}
Serial.println();
}
void setup(void) {
Serial.begin(115200);
// connect to wifi
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.println("");
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
request->send(200, "text/plain", "Hi there, i'm an ESP8266 pc relay!");
});
AsyncElegantOTA.begin(&server);
server.begin();
Serial.println("HTTP server started");
// mqtt
client.setServer(mqtt_server, 1883);
client.setCallback(callback);
client.connect(mqtt_client_name, mqtt_user, mqtt_pass);
//client.connect(mqtt_client_name); // uncomment to authenticate without a user
client.subscribe(command_topic);
// relay
pinMode(relayPin, OUTPUT);
}
void loop(void) {
if(client.connected()) {
client.loop();
} else {
client.connect(mqtt_client_name, mqtt_user, mqtt_pass);
//client.connect(mqtt_client_name); // uncomment to authenticate without a user
client.subscribe(command_topic);
}
}