In this ESP32 project, I have shown how to make an ESP32 RTC DS3231 control relay with OLED clock. You can set the ON/OFF time for the relay using ESP32 access point. This project don't need any WiFi.
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I have covered the following topics in this ESP32 RTC project tutorial:
02:25 Required components of ESP32 project.
02:31 Circuit of the ESP32 RTC module control relay.
03:34 Source Code for the ESP32 DS3231 RTC control relay.
07:49 How to set ON/OFF time using ESP32 Access Point
09:07 Control the relay using ESP32 RTC Timer.
Required Components for the ESP32 RTC project.
1. ESP32 Devkit V1.
2. DS3231 RTC module
3. 1-channel 5V SPDT Relay Module.
4. OLED display
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ESP32: amzn.to/331pohb
DS3231 RTC: amzn.to/3wlUHEc
1-channel 5V 30A Relay Module: amzn.to/3vjuNAt
Amazon United States Affiliate links:
ESP32: amzn.to/3mBjCch
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Important Link:
NTP Server link: www.ntppool.org/en/
Previous Video: • ESP32 Internal RTC Tim...
Download Source codes:
Main Code for the ESP32 DS3231 RTC project:
iotcircuithub.com/wp-content/...
Code to set time in DS3231 RTC module:
iotcircuithub.com/wp-content/...
Important points:
1. The DS3231 RTC module must be configured with current time.
2. ESP32 fetches the current time from DS3231 module.
3. ESP32 will create it's own access point name "ESP32_AP" & Password "password".
4. After connecting with access point, open a browser, enter the IP to set ON/OFF time (as shown).
5. Mention the ON/OFF time in 24H format.
6. Please take proper safety precautions while working with high voltages.
During the ESP32 tutorial video, I explained all the steps to make this ESP32 home automation system. This is very useful project where Wi-Fi is not available and you want to automatically control relays.
Here ESP32 create its own Wi-Fi network (Access Point) and nearby Wi-Fi devices (like your smartphone or your computer) can connect to it to set the ON/OFF time for relay. So you can modify the ON/OFF time easily from your mobile without any external WiFi.
You can also connect a switch across the COM and NO terminals of the relay for manual control. In upcoming videos I will add more features to this ESP32 timer project.
#esp32 #homeautomation #ds3231
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WARNING:
This video is for demonstration and educational purposes only.
Each demonstration presents risks and hazards that must be fully understood before attempting.
And should be performed only by professionals
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