IoT based Home Automation with Blynk and NodeMCU control Relay | Real-Time Feedback
In this IoT based project, I have made Home Automation with Blynk and NodeMCU control relay module with real-time feedback. With this internet of things projects, the relay module can monitor the room temperature and ambient light to turn on and off the light and fan automatically using the LDR and DHT11 sensor. You can also monitor the room temperature and humidity on the Blynk App.
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com
Download the PCB Garber File for this IoT project
https://drive.google.com/uc?export=do...
Timestamps for this Smart Home System
01:52 Circuit diagram of the NodeMCU control Relay module
02:38 Connect the NodeMCU, LDR, DHT11, and OLED with the PCB
03:28 How to setup Blynk App for this Home Automation project
06:27 Program NodeMCU with Arduino IDE & Explained the Code
09:11 Connect Home Appliances with the Relay module with Circuit
09:19 How to control the Relay with WiFi and manual switch.
Download the Code for this NodeMCU project from the following article
https://iotcircuithub.com/blynk-nodem...
I have mentioned all the download links for the required libraries in the code.
Required Components for this Smart House project
1. NodeMCU https://amzn.to/3fJA4EG
2. DH11 Sensor https://amzn.to/2WxV9Kr
3. LDR https://amzn.to/30ukiHo
4. 10k Resistors 5 no
5. 1k Resistors 5 no (R1 to R4)
6. 220-ohm Resistors 2 no (R5 & R6)
7. Optocoupler PC817 2 no
8. BC547 NPN Transistors 2 no
9. Diode 1N4007 2 no
10. Diode 1N4001 1no
11. LED (1.5v) 3 no
12. Capacitors 100uF 2 no
13. SPDT 12V Relays 2 no https://amzn.to/2WthQ2s
14. 7805 voltage regulator 1 no
15. Push Switch/ button 4 no
16. Connectors & jumpers
17. OLED I2C Display (0.96" or 1.3") https://amzn.to/2Wu0ouz
This is a very useful IoT based home automation project where you can easily control the home appliances from the smartphone using the Blynk App and also monitor the temperature and humidity. And in Auto mode, the relay module can control the high voltage devices automatically according to the room temperature and sunlight and send feedback to the Blynk IoT cloud. So this is also an IoT sensors project and can be used as the industrial IoT project.
#HomeAutomation #IoT #TechStudyCell
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