In my previous tutorial, I made a wireless switch using ESP8266. the article can be read here "How to Make WiFi Switch Using ESP8266".
In that article, I only made a one-channel wireless switch.
And in this article I will show you how to make a wireless switch that has more than one channel.
For example I will make a three channel wireless switch.
For the material used, it is still the same as the previous article. But it is necessary to add Resistors and LEDs to the switch indicator.
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Step 1: Required Component
Step 2: Assemble All Components
here I use 3 ports from esp8266.
that is :
D0 as Led 1
D1 as Led 2
D2 as Led 3.
for the one-channel and 3-channel schemes only differ in the number of LEDs used. so the picture above can already represent the scheme for a rank of 3 channels.
Step 3: Programming
the switch that I made can only be used on a local network. because I didn't involve the internet to make this switch.
I have provided a sketch that can be downloaded below
Step 4: Access Webpage
Here is how to operate this wireless switch:
After Sketch uploaded successfully
- Open the Wifi menu on the android phone
- Connect an android phone to SSID "NodeMCU"
- Open Serial Monitor on Arduino
- See the IP address displayed
- Open the browser on an android phone
- Enter the IP address on the monitor serial (192.168.4.1)
Then a web page will appear to control the LED
Step 5: Result
To turn on the LED, press the "on" button
To turn off the LED, press the "off" button