Automating window blinds is a great smart home upgrade, but designing a low voltage power supply for smart blinds can be tricky—especially when working with motors, microcontrollers, and sensors. For hobbyists and prototypers in India, selecting the right components ensures your blinds run smoothly without frequent resets or overheating.

🔧 The Problem: Inadequate Power = Malfunction

Smart blinds often use 5V–12V DC motors and controllers like ESP8266/ESP32. An underpowered or unregulated supply can lead to motor stalling or controller reboots, especially during startup surges.

✅ The Solution: Use Stable DC-DC Power Modules

A buck converter or a regulated SMPS is ideal for stepping down from 12V (common adapter output) to 5V for your controller. Choose components with current headroom to handle motor peaks.

🔍 Practical Example: ESP32 + 5V Motor Setup

Suppose you’re using a 12V adapter to power an ESP32 and a 5V motor. Without regulation, the ESP32 resets during motor startup. Adding a DC-DC buck converter ensures a clean 5V for the controller while supplying motor current separately.

🧮 Sample Calculation: Power Budget

• ESP32: ~250mA

• Motor (startup): ~1A
  Total = 1.25A at 5V = 6.25W
  Use a 9W-rated buck converter for safety.

🛒 Product Suggestion: Made in India Components

• ⚡ [Shop buck converters]

• 🔋 [Shop SMPS modules]

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