IoT based Smart Energy Meter using ESP32 & Google Sheet | Google Spreadsheet
In today’s episode, you will learn how to make an IoT based Smart Energy Meter using ESP32 WiFi + Bluetooth module, the ZMPT101b AC Voltage Sensor, The DFrobot CT Clamp Current Sensor, And the Google Sheet or Google spreadsheet as the IoT platform for the real-time monitoring and data logging.
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Project Description:
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In today’s episode, you will learn how to make an IoT based Smart Energy Meter using ESP32 WiFi + Bluetooth module, the ZMPT101b AC Voltage Sensor, The DFrobot CT Clamp Current Sensor, And the Google Sheet or Google spreadsheet as the IoT platform for the real-time monitoring and data logging.
This is the prototype model of IoT based Smart energy meter. And this is my Google spreadsheet for monitoring the Date, Time, Voltage, Current, Power, and Units. But, before, I start the practical demonstration, there are certain things which I would like to talk about.
1. You might be thinking, why Google sheet or Google spreadsheet as the IoT Platform? Why not Blynk IoT Platform? Well, Blynk is an amazing IoT platform and I have used it in so many projects and its good for the real-time data monitoring. But the Google spreadsheet is perfect for the real-time monitoring and Data logging. It’s absolutely free, you can monitor as many sensors as you want. You can use multiple Google sheets, and you don’t have to pay a single penny. I know, it doesn’t have those fancy widgets, but I really don’t care about the widgets. I want real-time monitoring and data logging; and I know Google spreadsheet is perfect for this job.
2. As a beginner, you might also be thinking about why ESP32? Why not ESP8266. Well the answer is ESP8266 has only 1 analog pin whereas on the other hand ESP32 has got multiple Analog pins and it also has the advantage of having a Bluetooth module. I am not saying that you can’t use the Nodemcu ESP8266 for monitoring multiple analog sensors. You can use the ADS1015 to increase the analog pins on the ESP8266 for connecting multiple analog sensors. I already have a video on the ADS1015 and the Nodemcu ESP8266 WiFi module, I have added a link in the description.
3. Your Sensors should be calibrated otherwise your project won’t be of any use. In my previous Arduino Home Energy Monitor based video, I explained in detail how to calibrate the ZMPT101b AC voltage Sensor, and how to calibrate the CT Clamp Current Sensor. So, you can apply the same calibration techniques over here.
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ESP32 WiFi + Bluetooth Module (My recommendation), more IO pins, improved speed, and supports a Lipo Battery:
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CT Clamp Current Sensor
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CT Clamp Current Sensor from the DFrobot:
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ZMPT101b AC Voltage Sensor
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