DianDeng Technology realizes "ESP8266-01/01s + relay" remote switch

tutorial video

How to use the ESP-01S relay socket?

Required hardware

relay

ESP-01S relay socket

WIFI module

esp8266-01s wifi module

Writer

Software preparation

Arduino IDE needs to install the esp8266 extension

click to download

Download and install blinker APP

Android download:
Click to download or search "blinker" in the android app store to download and install

IOS download:

Click to download or search "blinker" in the app store to download

Install the blinker Arduino library

Import the .ZIP library into the library through the Arduino IDE menu > Project > Load Library > Add .ZIP library, as shown in the figure:

Import the .zip library extended by esp8266

Complete sample program ( copied from the official website )

#define BLINKER_PRINT Serial
#define BLINKER_WIFI

#include <Blinker.h>

char auth[] = "Your Device Secret Key";
char ssid[] = "Your WiFi network SSID or name";
char pswd[] = "Your WiFi network WPA password or WEP key";

// 新建组件对象
BlinkerButton Button1("btn-abc");
BlinkerNumber Number1("num-abc");

int counter = 0;

// 按下按键即会执行该函数
void button1_callback(const String & state) {
    
    
    BLINKER_LOG("get button state: ", state);
    digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN)); // LED引脚的编号
}

// 如果未绑定的组件被触发，则会执行其中内容
void dataRead(const String & data)
{
    
    
    BLINKER_LOG("Blinker readString: ", data);
    counter++;
    Number1.print(counter);
}

void setup() {
    
    
    // 初始化串口
    Serial.begin(115200);

    #if defined(BLINKER_PRINT)
        BLINKER_DEBUG.stream(BLINKER_PRINT);
    #endif
    
    // 初始化有LED的IO
    pinMode(LED_BUILTIN, OUTPUT);
    digitalWrite(LED_BUILTIN, HIGH); // LED引脚的编号
    // 初始化blinker
    Blinker.begin(auth, ssid, pswd);
    Blinker.attachData(dataRead);
    Button1.attach(button1_callback);
}

void loop() {
    
    
    Blinker.run();
}

What needs to be changed

Change the pin of digitalWrite output

Because the default control pin in the above complete example code isLED_BUILTIN

In Arduinothe program, instead of specific pin numbers (such as ) are Blinkused because the lights on the board are built-in and their interface circuits have already been designed. Using functions, no matter which specific pin the light is connected to, it can be correctly identified and controlled. This makes the program more portable and independent of the specific hardware design.LED_BUILTIN13ArduinoLEDLED_BUILTINLED

If LEDthe light is connected to pin 13, you can of course use 13 instead LED_BUILTIN. But in other board types or custom hardware, LEDthe lights may be connected to other pins, which may be LED_BUILTINmore advantageous.

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In ESP8266-01sthe module, 0pin No. is GPIO(general-purpose input and output), we just need to LED_BUILTINreplace them all 0.

According to ESP8266-01sthe manual, we can see that ESP01sthe chip works through GPIO0a pin-controlled relay and is active at high level.

Use Ctrl+Hone-click replacement

Change lighting key

Change the secret key to your own

char auth[] = "Your Device Secret Key";

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You need to add an independent device to the Dian Technology APP, select network access, and generate a secret key.

Change WIFI name and password

char ssid[] = "Your WiFi network SSID or name";
char pswd[] = "Your WiFi network WPA password or WEP key";

• ssid[]Corresponds to the name of WIFI
• pswd[]Corresponding to the password of WIFI

Remote switch control

After that, you can manually add the switch button on the lighting APP for remote control after the device is online.

Notice

It should be noted that when adding a device button, the name needs to be consistent with the code

Reference article

Using Blinker to control esp01s Relay relay module