In this MQTT NodeMCU project, I have explained how to make MQTT ESP8266 NodeMCU Home Automation System with cheapest Cloud MQTT broker Reyax RYC1001 to control 4 relays from smartphone and manual switches. You can also monitor the real-time feedback on the smartphone.

Cloud MQTT Broker Reyax RYC1001 purchase link : [ Ссылка ]

Download Reyax RYC1001 documentation:
[ Ссылка ]

Explore other REYAX IoT products: [ Ссылка ]

During the MQTT tutorial video, I have covered the following topics:
00:08 How to control 4 relays using MQTT from mobile and switches.
01:00 Circuit diagram of this MQTT IoT based Smart Home project.
01:51 How the MQTT protocol works.
04:52 Programming the NodeMCU with Arduino IDE
07:49 How to configure and connect IoT ON OFF app with cloud MQTT broker
10:45 How to connect home appliances with the 4-channel relay module.
10:57 Controlling 4 appliances from mobile and switches with MQTT

Required Components for this Alexa home automation system
1. NodeMCU
2. 4-channel 5V SPDT Relay Module
3. Push Buttons

Amazon India Affiliate links:
NodeMCU : [ Ссылка ]
4-channel 5V Relay Module : [ Ссылка ]

Amazon United States Affiliate links:
NodeMCU : [ Ссылка ]
4-channel 5V Relay Module : [ Ссылка ]

Download Code for this MQTT NodeMCU smart house automation project
[ Ссылка ]

MQTT clients are very small, require minimal resources so it can be used on small microcontrollers like ESP8266 or ESP32 etc for different IoT projects. During the video, I have explained in details what is MQTT client and MQTT broker, how the MQTT protocol works, how to use MQTT in building automation projects. Also shown how to install the pubsubclient library and program ESP8266 NodeMCU with Arduino IDE. After watching the complete MQTT tutorial video, you can easily make this MQTT home automation project with your own MQTT server.

#mqtt #nodemcu #homeautomation
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