Send and Receive SMS using SIM800L and ESP32 (GSM IoT Series #3)
Read the Full Guide & Copy the Code: https://iotbhai.io/send-receive-sms-s...
Learn how to send and receive SMS messages using the ESP32 and SIM800L GSM module. In Part 3 of our IoT Series, we build an SMS-controlled system that can auto-reply to commands like "status" with real-time device information.
This code is perfect for remote monitoring, GSM home automation, or keeping track of your IoT devices without the internet.
Want to Learn SIMA7670G? Follow this series [ • SIMA7670G 4G GSM Module with ESP32: SMS, G... ]
** This video covers **
Sending SMS from ESP32
Receiving SMS on ESP32
Command & Reply: Make your device respond to SMS commands!
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*Hardware Used:*
ESP32 Development Board (38-pin)
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SIM800L GSM Module (Micro SIM)
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18650 Li-ion Battery (3.7V) & Holder
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470uF or 1000uF Capacitor (Crucial!)
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Breadboard
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DC-DC Booster Module (MT3608 or similar) if you use a Battery(Optional)
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Connecting wire
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MicroUSB Cable
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** Timestamps **
00:00 - Introduction & Project Flowchart
00:58 - Code Explanation: Admin Number & Config
02:15 - Sending "Device Started" SMS Logic
02:55 - Live Demo: Boot Up & Sending SMS
03:25 - Testing "Status" Command (Receive & Reply)
03:48 - Handling Unknown Commands
Get the Code: [https://github.com/ittipu/IoT_Bhai_Yo...]
New to SIM800L/ESP32? Start Here:
ESP32 Basic Setup: [ • How to Connect SIM800L to ESP32 | GSM Setu... ]
SIM800L Troubleshooting: [ • SIM800L Not Connected to Network? Ultimate... ]
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