Call Activated Smart Switch Module

GSM Remote Control Switch Board – Call Activated Smart Relay Controller for Water Pumps, Automation, & Industrial Sirens

Overview:

Take full control of your heavy electrical appliances from anywhere in the world with just a simple phone call! This GSM Remote Control Switch Board is an advanced, standalone automation system that allows you to securely turn any electronic device ON or OFF remotely.
Engineered with high-grade security protocols, the onboard microcontroller intelligently screens incoming calls and executes the toggle command only when it detects a pre-registered, authorized phone number. Any unauthorized attempt is instantly ignored, making it completely secure for remote operations.

Network and compatibility:

Supported Service Providers: This device is strictly compatible with Airtel, BSNL, and Vodafone Idea (Vi) networks. (Please note: Jio SIM cards are not supported as the module operates on 2G/3G/4G network bands).

Active Validity Mandatory: The SIM card inserted into the device must have an active monthly validity recharge to ensure uninterrupted incoming call services and Caller ID availability.

🚀 Key Features & Benefits

Secure Authentication: Built-in number verification system ensures only authorized administrators can control the device.

Zero Cost Operation: The controller identifies the caller ID and immediately disconnects (⁠ATH⁠) the call before toggling the relay, ensuring zero call charges.

Fail-Safe Self-Healing: Integrated with an advanced hardware Watchdog Timer (WDT) to automatically detect and prevent micro-system freezes, offering 24/7 autonomous reliability in remote locations.

Heavy-Duty Enclosure: Housed in a durable, dust-proof industrial enclosure with standard screw terminals for easy and safe AC/DC wiring.

Plug & Play Power: Conveniently powered via a standard USB cable using any regular mobile charger or power bank.

Universal Applications: Perfect for controlling agricultural water pumps, industrial sirens, home lighting, remote servers, or automation prototypes.

📦 Package Includes:
1 x Secured GSM Remote Relay Controller Board (Pre-Assembled in Industrial Box)
1 x Heavy-Duty Power Cable

💡 Ideal For:

Farmers: Remotely operate agricultural water pumps from the comfort of your home.
Security Systems: Trigger emergency sirens or warning lights remotely.
Engineering Students: Excellent plug-and-play reference model for 8th-semester embedded electronics, IoT demonstrations, and defense exhibition design prototypes.