How To Setup SIM800L gsm Module with ESP32 | Sending SMS | Solved SIM800L Power Issue
Read the Full Guide & Copy the Code: https://iotbhai.io/how-to-connect-sim...
Watch this tutorial in English - • How to Connect SIM800L to ESP32 | GSM Setu...
In this Bangla IoT tutorial, we will learn how to interface the SIM800L GSM module with an ESP32 microcontroller to send an SMS over a cellular network. The SIM800L often faces power issues, so I will show you the exact circuit design, required power ratings, and the capacitor value needed to fix the "Over Voltage Power Down" or continuous restarting problems.
We will also cover how to understand the SIM800L LED blink patterns to check your network status and write the code using the TinyGSM library.
*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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⏳ Video Chapters:
0:00 - Introduction & SIM800L Power Issues Explained
0:30 - Hardware Components Required
1:43 - Circuit Design & Capacitor Connection
2:14 - Understanding SIM800L LED Blink Status
4:12 - ESP32 to SIM800L Wiring Diagram
5:10 - Code Explanation (TinyGSM Library)
6:58 - Uploading Code & Serial Monitor Output
8:09 - Live Test: Receiving SMS on Phone
Code Link -https://github.com/ittipu/IoT_lab_You...
Library Link - https://github.com/vshymanskyy/TinyGSM
[Contact Me]
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If you run into any problems, feel free to comment, and I'll do my best to assist!