Another project inspired by being lazy! I made a webserver with an ESP32 which I can access over WiFi using my phone, computer, or even smart TV. The ESP32 works in coordination with a DC motor driver board which adjusts the shades.
To add some complexity, I added a ~5V rechargeable battery and accompanying solar panel. I also added a small microUSB cable that sticks out the side of the blinds. In theory I can use it to charge the battery, or just leave it there to power the device!
Project Perspective
WiFi Window Blinds Control! is a sophisticated exploration of IoT and home automation. By focusing on the essential building blocks—the ESP32 Feather module and a geared DC motor—you'll learn how to communicate and automate your windows using a specialized software logic and a robust wireless setup.
Technical Implementation: Web Servers and Actuators
The project reveals the hidden layers of simple web-to-blind interaction:
- Wireless Interface layer: The ESP32 Feather acts as your high-resolution bridge, connecting your blinds to your home WiFi network.
- Web Server Strategy layer: The ESP32 hosts your internal HTML/CSS web server, providing a clean UI for your phone or PC browser.
- Conversion layer: The L298N Motor Driver provides the high-precision DC voltage and power needed for your shade movement.
- Energy Strategy Loop: The ESP32 code follows a specialized "sequential decoding" strategy: it requests and performs "Open," "Close," or "Angle" modes based on each incoming web button.
- Sustainability Interface layer: A Solar Panel and Li-Po charger provide portable and self-sufficient power for any sunny window.
Hardware Infrastructure
- ESP32 Feather Board: The core WiFi and Bluetooth-enabled micro-controller that manages the web server and coordinates the motor tasks.
- Geared DC Motor: Provides the high-torque physical movement and orientation for your blind's slats.
- L298N Motor Driver: Effectively handles your motor's 12V power and current while protecting the tiny ESP32.
- Solar Panel & TP4056: Provides high-power and energy-efficient charging for your blind's battery.
- 3D-Printed Hubs: Acts as a high-performance mechanical link between the motor and the window blinds mechanism.
- Micro-USB Cable: Used to program the ESP32 directly from your computer and provide a primary power source.
Automation and Interaction Step-by-Step
The WiFi blind automation process is designed to be very efficient:
- Initialize Hardware: Correctly seat the ESP32 and motor driver in your 3D-printed enclosure and prepare your Arduino for action.
- Setup High-Power Sync: In the
setup()function, define your WiFi credentials and initialize the web server and motor pins. - Execution Loop: The ESP32 constantly performs several high-performance network checks and updates your blind's status in real-time.
- Visual and Audio Feedback: Watch your blinds automatically become a rhythmic visual signal, pulsing and following your smartphone's web-commands in real-time.
Future Expansion
- OLED Identity Dashboard Integration: Add a small OLED display on your blind's box to show "Battery Level" (%) and "WiFi Signal Strength" (dBm).
- Multi-sensor Climate Sync Synchronization: Connect a Light Sensor (LDR) to have your blinds "Close Automatically" when the sun is too bright or "Open" at sunrise.
- Cloud Interface Registration Support Synchronization: Add a specialized cloud dashboard to precisely control and track your blind history from your smartphone anywhere in the world.
- Advanced Velocity Profile Customization Support: Add a specialized "Schedule" in your web app to manually adjust your "Open/Close Time" (HH:MM) for each week day.
WiFi Window Blinds Control! is a perfect project for any electronics enthusiast looking for a more interactive and engaging smart house tool!
ADDITONAL_HTML_CODE: you will need to paste this in the final code for the webserver design.
<html>
<head>
<title>Window Blinds Control</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
html,body{
width:100%;
height:100%;
margin:0}
*{box-sizing:border-box}
.colorAll{
background-color:#90ee90}
.colorBtn{
background-color:#add8e6}
.angleButtdon,a{
font-size:72px;
border:1px solid #ccc;
display:table-caption;
padding:10px 10px;
text-decoration:none;
cursor:pointer;
padding:5px 6px 7px 10px}a{
display:block}
.btn{
margin:5px;
border:none;
display:inline-block;
vertical-align:middle;
text-align:center;
white-space:nowrap}
";
HTML +="</style>
</head>
<body>
<h1>Blinds Control </h1>
";