Smart Power Strip With Cayenne Cloud

Hardware:

1. Smart Power Strip Controller Board (4Channel) x1
2. Electrical Components(Purchased from local Electrical shop)

• Electrical Switch box x1
• Electrical Socket 3pin (you can also use 2 pins) x4
• Live/Phase indicator x1
• Plug wire 2 pin x1
• 2Way Electrical Switch (optional, needed only if interested to control device from the physical switch also) x2
• Some electrical wires for connection (10-12AWG or around 2mm diameter).

Software and Services:

• Arduino IDE
• myDevices Cayenne Cloud

Hand Tools :

• Multitool, Screwdriver Wire
• Stripper & Cutter, 18-10 AWG / 0.75-4mm² Capacity Wires

Pre-Requisite: We need Arduino IDE software installed in PC/laptop and configure Wemos D1 board to IDE for programming.

1) Arduino IDE setup:

Follow the Arduino official link below to install Arduino IDE on your respective OS:

Windows -> https://www.arduino.cc/en/Guide/Windows

Linux -> https://www.arduino.cc/en/Guide/Linux

Mac -> https://www.arduino.cc/en/Guide/MacOSX

For Windows and Mac, it is pretty straight forward to install, no major problem faced during installation. But Linux user especially beginners find some issue regarding Arduino installation of which most common serial upload error issue ("avrdude: ser_open(): can't open device" ) during the first time installation. So, I recorded a video which you may follow as shown below.

2) Configure Wemos D1 board to Arduino software:

Actually, Wemos D1 board is made using the ESP8266 chip. So, to add Wemos to boards list we will have to follow steps given on esp8266 GitHub link: https://github.com/esp8266/Arduino

The process is simple but While configuring it in Arduino on Linux/Ubuntu I got an error related to python. So I recorded video on how to resolve and configure properly which you may checkout as well.

Control the board is equipped with most familiar ESP8266 based Wemos d1 microcontroller and 4 Relay to operate 4 Electrical devices.
No headache of jumper wires and separate power adapter. This board is equipped with onboard AC(230V AC) to DC power module (5W and DC5V).

Check out the details of pin connection going from Wemos D1 to the various part on the baseboard and other breakouts which are available is shown in the above images.

Wemos D1 ---> Relay

GPIO15 (D8) --- R1
GPIO13 (D7) --- R2
GPIO12 (D6) --- R3
GPIO14 (D5) --- R4

Breakouts are provided in case if you are interested to experiment i.e want to add some sensor like temperature, humidity or security PIR motion sensor.

So, now let us first check the working of control board before proceeding for the next steps. For this just copy and paste code to Arduino IDE provided below -> smartpowerstrip_testcode.ino

Verify and upload it to the control board by selecting the proper board and configuration as shown in the video ->

Attachments

• smartpowerstrip_testcode.ino
  Download

For this project, I have used Cayenne IoT Cloud server to operate the device. To create an account visit link: https://cayenne.mydevices.com

For this step will use the final code of the project given below-> SmartPowerStripv2_finalcode.ino

Below video shows the process to Setup and configures Cayenne cloud for smart power strip project:

Scheduling Feature - to automate device switching operation:

You can also use the mobile app to operate the device. Click here to download Android app

Attachments

• smartpowerstipv2_finalcode.ino
  Download

Above shown is the basic wiring connection to control four Electrical appliances (here 4 Light Bulb for demo).
You can go with wiring convention as followed in your countries. I have shown the most basic configuration.

Case 1:Neutral is given to all appliances while Live/Phase is connected via Switch

Case 2:Live/Phase is given to all appliances while Neutral is connected via Switch

Let us proceed for packaging. Using a screwdriver and wire cutter make an electrical connection shown in the next steps. I will be showing with and without 2way switch connection, you can go as per choice.

2 More Images

The first image shows the layout of the connection for understanding the wiring while rest are actually implementation.

Once done, so now you can test your smart wireless power strip.
But if you are interested to add a physical switch for two way connection, so follow further instructions given below.

The images above show the basic wiring technique for 2Way Connection with Load(or socket).

And how we can replace 2way switch with a relay which you can say electronic 2way switch.

2 More Images

So, to demonstrate I have shown connections with the first two relays. But you can try for all 4 relays.

Thanks!!