Connecting ESP32 to Tencent Cloud by MQTT

Introduction

• What does this project do?

  This project connects an ESP32 board to Tencent cloud by MQTT protocol, and publishes a topic which shows the value of a on-board Touch Pad (Capacitive Touch module).

  Also, it receives from the cloud and set-high or set-low GPIO0 accordingly.

• What do I need to get this project running?

  See 1. Preparation

• How should I do to get this project running?

  See 2. Create a Product on Tencent Cloud and 3. Connect ESP32 to Tencent Cloud

1. Preparation

1.1 Hardware

• The Board

  The board I use called ESP-32F, which is a never-heard-of version of ESP32. It has a RGB light module which is soldered incorrectly (never gonna light up), and a speaker module which speaks when I try to light the RGB module up, and so many other shits. By the way, 1-starred on its TaoBao Page of course.

  But it has two touch pads. Although their pin number don't comply with the schematic, they work smoothly thank god.

1.2 Software

• MicroPython: http://docs.micropython.org/en/latest/esp32/tutorial/intro.html#esp32-intro
• Thonny: https://thonny.org/

2. Create a Product on Tencent Cloud

• Enter Tencent Cloud

  

• Click '立即使用', after which you need a scan login

• After logging in, you should see a page like this, click '创建产品'

  

• Set up your product like this

  

• Click Manage for the product you just created

  

• Go to '设备列表' and click '添加新设备'

  

  

• The information you need for now is just:

  

  

  Product ID & Client ID & MQTT Username & MQTT Password & Topic

3. Connect ESP32 to Tencent Cloud

• Put main.py and simple.py to the board through Thonny.

• Modify main.py, fill in the information (Product ID & Client ID & MQTT Username & MQTT Password & Topic) you just got from Tencent Cloud.

• Run main.py on board through Thonny.

• If everything goes well, you could observe your data on Tencent Cloud:

  

4. Reference

This project is just a modified version of a blog on the 01Studio (https://www.01studio.cc/) forum:

https://bbs.01studio.cc/thread/28

Thanks to Jackey.