✅Arduino SIM800 incoming call

Опубликовано: 18 Май 2026
на канале: GEEKMATIC
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Arduino and SIM800: Control Devices with an Incoming Call!

Want your devices to respond to calls from your phone? In this video, we'll show you how to create a relay control system using an Arduino Nano and the SIM800 GSM module that will automatically answer incoming calls and activate a relay based on the caller's number [00:15]!

What you'll learn in this detailed tutorial:

Hardware Setup: Details on connecting a relay to an Arduino Nano and using the integrated SIM800 + Arduino Nano board [00:36].

Incoming Call Processing: How the SIM800 signals incoming calls ("RING," "CLIP") and hangs up ("NO CARRIER") [03:46].

Relay Control by Number: Learn to activate a relay only when a specific number calls, ignoring others [04:24].

Automatic Answer or Reset: We'll show you how to use the ATA commands to automatically answer a call [09:23] and AT+H to reset a call [06:33], so the relay reacts differently.

Practical Applications: Learn how this system can become the foundation of a smart home, where devices react to your call, for example, by turning on lights or opening gates.

This video is an indispensable resource for creating smart and autonomous systems that respond to external events. Make your projects more interactive and convenient!

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Text version: http://geekmatic.in.ua/sim800l_3
Our module: http://geekmatic.in.ua/shield_arduino...

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