Monitor Temperature Humidity via SMS Using M5Stack and SIM800L

Introduction

Did you know that you can add on modules (stacking) to your M5Stack Core? For this tutorial, I will show you how to monitor temperature and humidity via SMS using M5Stack and SIM800L module. SIM800L is a cellular phone module (GSM/GPRS) and only compatible with 2G network. If you want to integrate a cellular module into your design with voice, text and SMS, you can consider this setup!

Video

This tutorial shows how to monitor temperature and humidity via SMS using M5Stack and SIM800L module.

Hardware Preparation

This is the list of items used in the video.

• M5Stack Basic ESP32 Development Kit
• M5 GSM SIM800L Module with Mic Headphone Jack
• M5Stack Environment Sensor Unit II

Sample Program

This is Arduino sample code to monitor temperature and humidity via SMS using M5Stack. Please install following library through Library Manager.

• M5Stack V0.3.0
• Adafruit FONA V1.3.8
• ClosedCube SHT31D V1.5.1

Thank You

References:

• Github - Adafruit FONA
• Github - ClosedCube SHT31D

Thanks for reading this tutorial. If you have any technical inquiries, please post at Cytron Technical Forum.

"Please be reminded, this tutorial is prepared for you to try and learn.
You are encouraged to improve the code for a better application."