Joy-it ESP-01S User manual

ESP-01S RELAY MODULE

Remotely controllable relay module

1. GENERAL INFORMATION

Dear customer,

thank you very much for choosing our product.

In following, we will introduce you to what to observe while starting up

and using this product.

Should you encounter any unexpected problems during use, please do

not hesitate to contact us.

To use the ESP-01S relay module, you must first program the ESP-01S

supplied on the product.

For this, we recommend programming the ESP-01S with the ESP8266

PROG from 3.

2. PROGRAMMING THE ESP-01S RELAY MODULE

First, the Arduino development environment must be prepared for use

with the ESP8266.

To do this, the following URL is entered in the global settings of the pro-

gram as an additional board administrator URL:

https://arduino.esp8266.com/stable/package_esp8266com_index.json

Next, an additional board library must be installed. Open the board ma-

nager and install the ESP8266 library.

Please note that your Arduino development environment must be

restarted if the board library is not displayed.

Once you have successfully installed the board, you can select the Gene-

ric ESP8266 Module from the list of available boards.

Your Arduino development environment is now prepared for the use with

an ESP8266.

#include <ESP8266WiFi.h>

const char* ssid = "MeineWlanSSID"; // Enter your router or

WiFi SSID here

const char* password = "MeinWlanPasswort"; // Enter your rou-

ter or WiFi password here

#define RELAY 0 // connected to GPIO0

WiFiServer server(80);

void setup(){

Serial.begin(115200); // must have the same baud rate as

the serial monitor

pinMode(RELAY,OUTPUT);

digitalWrite(RELAY, LOW);

// Connect to the WiFi network

Serial.println();

Serial.print("Connecting to ");

Serial.println(ssid);

WiFi.begin(ssid, password);

while (WiFi.status() != WL_CONNECTED){

delay(500);

Serial.print(".");

}

Serial.println("");

Serial.println("WiFi connected");

// Start the Server

server.begin();

Serial.println("Server started");

// Output of the IP address

Serial.print("Use this URL to connect: ");

Serial.print("https://");

Serial.print(WiFi.localIP());

Serial.println("/");

}

void loop(){

// Check whether a user has established a connection

WiFiClient client = server.available();

if (!client){

return;

}

// Wait until the user sends data

Serial.println("new client");

while(!client.available()){

delay(1);

}

// Reading the first line of the request

String request = client.readStringUntil('\r');

Serial.println(request);

client.flush();

3. CODE EXAMPLE

Now you can simply copy the following code example into your Arduino

IDE and upload it to your ESP-01S.

// Assignment of the request

int value = LOW;

if (request.indexOf("/RELAY=ON") != -1){

Serial.println("RELAY=ON");

digitalWrite(RELAY,LOW);

value = LOW;

}

if (request.indexOf("/RELAY=OFF") != -1){

Serial.println("RELAY=OFF");

digitalWrite(RELAY,HIGH);

value = HIGH;

}

// Return the answer

client.println("HTTP/1.1 200 OK");

client.println("Content-Type: text/html");

client.println(""); // this is necessary

client.println("<!DOCTYPE HTML>");

client.println("<html>");

client.println("<meta name='viewport' content='width=device

-width, initial-scale=1'>");

client.println("<head><title>ESP8266 RELAY Control</

title></head>");

client.println("<style>");

client.println("* {text-align: center; font-family: Conso-

las;}");

client.println("");

client.println(".container {position: absolute; top:

50%;");

client.println("left: 50%; transform: translateX(-50%)

translateY(-50%);}");

client.println("");

client.println("a {display: inline-block; width: 50px;");

client.println("color: #FFFFFF; background-color:

#275C6B;");

client.println("margin-top: 15px; padding: 10px 20px;");

client.println("text-decoration: none; border-radius:

5px;");

client.println("font-weight: 800;}");

client.println("</style>");

client.println("<div class='container'>");

client.println("<div class='inner'>");

client.print("Relay is now: ");

if(value == HIGH){client.print("OFF");}

else{client.print("ON");}

client.println("<br>");

client.println("<a href=\"/RELAY=OFF\">OFF</a>");

client.println("<a href=\"/RELAY=ON\">ON</a>");

client.println("</div>");

client.println("</html>");

Serial.println("");

}

Aer you have uploaded the code to your Esp-01S, you need to pull the

ESP-01S programmer out of your PC and set the small switch on the side

of PROG to UART so that you can see the serial output of the ESP-01S in

your IDE. Once you have flipped the switch, you can put the programmer

of your ESP-01S back into your PC and view the serial output of your ESP-

01S to see if the connection to your WiFi was successful.

4. CONNECTION OF THE ESP-01S ON THE RELAY MODULE

Aer programming the ESP-01S, you can now unplug the ESP8266-PROG

from your PC and remove the ESP-01S.

In the next step, you have to make sure that you plug your ESP-01S cor-

rectly on the relay module. In the following figure it is color-coded which

pin of the ESP-01S belongs to which pin on the relay module.

Aer plugging the ESP-01S into the relay module, you can now connect a

supply voltage of 5 - 12 V. Aer that, you can go to the website by simply

entering the IP address you saw in your serial output in your browser

(enter the IP address in your browser on a device that is in the same

network as the ESP-01S).

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

www.joy-it.net

SIMAC Electronics GmbH

Pascalstr. 8, 47506 Neukirchen-Vluyn

5. ADDITIONAL INFORMATION

Our information and take-back obligations according to

the Electrical and Electronic Equipment Act (ElektroG)

Symbol on electrical and electronic equipment:

This crossed-out dustbin means that electrical and electronic appliances

do not belong in the household waste. You must return the old appliances

to a collection point.

Before handing over waste batteries and accumulators that are not en-

closed by waste equipment must be separated from it.

Return options:

As an end user, you can return your old device (which essentially fulfils

the same function as the new device purchased from us) free of charge for

disposal when you purchase a new device.

Small appliances with no external dimensions greater than 25 cm can be

disposed of in normal household quantities independently of the pur-

chase of a new appliance.

Possibility of return at our company location during opening hours:

SIMAC Electronics GmbH, Pascalstr. 8, D-47506 Neukirchen-Vluyn, Germa-

Possibility of return in your area:

We will send you a parcel stamp with which you can return the device to

us free of charge. Please contact us by email at Service@joy-it.net or by

telephone.

Information on packaging:

If you do not have suitable packaging material or do not wish to use your

own, please contact us and we will send you suitable packaging.

6. SUPPORT

If there are still any issues pending or problems arising aer your purcha-

se, we will support you by e-mail, telephone and with our ticket support

system.

Email: service@joy-it.net

Ticket system: http://support.joy-it.net

Telephone: +49 (0)2845 9360-50 (10-17 o‘clock)

For further information please visit our website:

www.joy-it.net

Published: 30.12.2021

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