Outline
- Project：Microduino open source smart socket (ESP8266connect with Blynk)
- Objective：Mobile phone remote control socket on and off.
- Difficulty：Low
- Time-consuming：2 hours
- Maker：ray
- Introduction:
- The user can use moible phone to surf the Internet to connect with Blynk control the Internet of things.
- The core control module Microduino-Core+ controls the relay switch after receiving introductions.
- WiFi wireless module Microduino-WIFI,ESP is responsible for wireless communications.
Bill of Materials
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| Equipment |
Number |
Function
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| Bottom case + circuit board |
1 |
Circuit control
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| Shell |
1 |
Safeguard
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| Long screw |
4 |
The shell and bottom case fixation
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| Short screw |
3 |
The bottom case and the circuit board fixation
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| M3 screw driver |
1 |
Turn the screw
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Principle of the Experiment
- Principle of the Circuit’s Control
- The socket has two main components on the control panel.
- Switching mode power supply：Change 220V city power into 5V working voltage to supply Microduino module with power.
- Relay：Microduino module switch control the socket through it.
- The socket can pick up any electrical appliances.（<1250W）
- Microduino core module controls the switch of the relay to control the switch of the household appliances.
- It is actually a smart switch which can use weak electricity to control strong electricity.
- Principle of Wireless Communication
- Use Microduino-WIFI,ESP WiFi communication module to connect with the wide area network.
- Use Blynk APP to communicate through Blynk server.
Obtain, and Configure Blynk
- Follow our steps below to know how Microduino and Blynk interact.
Get the Mobile Client of Blynk
- Of course you can also do one by yourself.
- If you do it yourself, you can name it as outlet.
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- Then click on the panel and you’ll call up WIDGET BOX, where there are a lot of controls for you to choose.
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- Select Value Display, and input state to show this control is used to obtain the state of the socket switch.
- INPUT selects V0, and READING FREQUENCY select 1second to show the frequency of the socket to send state.
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- Then put a led displaying control to simulate a LED lamp, and set INPUT as V1.
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- The corresponding code in Microduino is
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BLYNK_READ(V0) {
if(digitalRead(outletPin)) {
Blynk.virtualWrite(V0, "ON");
ledState.on();
} else {
Blynk.virtualWrite(V0, "OFF");
ledState.off();
}
} |
- Finally choose a button control, and set the OUTPUT as D6, on behalf of controlling the D6 pin of Microduino.
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- Finally, it looks as this in your mobile phone panel
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- Push the button, and it will show the socket has become the open state.
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Program Download
Smart Socket Github：ESP8266BlynkOutlet
Programming
- Overlay Microduino-Core+ and Microduino-USBTTL together.
- Connect Microduino-USBTTL with USB cable and prepare to upload programs.
- Note：Please upload programs before stacking all modules together.
- Open Arduino IDE for Microduino environment. （The reference to set up：AVR Core：Getting started）
- Click [Tool] bar, confirm board card（Microduino-Core+） processor（Atmega644pa@16M,5V） selected correctly, and choose the corresponding port number(COMX)
- Click [File]->[Open], browse to the project program address, and click “ESP8266BlynkOutlet.ino” program to open it.
- After all these are correct, click "→" button to download to the development board.
Assemble the Smart Socket
- Step3
- Make the smart socket shell buckle into the pan, use a 8mmlong screw to screwing in, and fix the top and bottom cases. Now the smart socket part has been set up completely.
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Operating Introduction
- Insert the smart socket into a home one.
- Insert any electric power cord in the home into the smart socket, such as the electric power cord of the television, the refrigerator, and the humidifier.
- Here we take the phone charger for example, and inset it into the smart socket.
- Open the Blynk client and press the switch button, you will see the indicator lights up, and theit start charging the mobile phone.
In the picture：
① is the switch button.
② is the power indicator light.
③ is the on and off indicator light of the smart socket.
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Attention Problem
- Contacting with the electricity is very dangerous, so pay attention to safety！
- All installation operation can’t be processed with power！
- After the installation and the jump, even intelligent socket is closed, you must not touch the power switch！
FAQ
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