Make your own Power Meter/Logger
video description
Hint for your data logging: Have your Arduino log all data to a. csv file. Each line is a row of data, separated by commas, and you can even have the Arduino do some of your calculations for you and include them on the line. Stick the SD card into your computer, double-click the. csv file, and it opens up in Excel, each data point in it's own cell, nice neat rows and columns. Select a column, select Insert, and insert a graph of the data, easy-peazy.
Lastly, I know this video was created four years ago, but we now have some data logger modules. I got two of the ones you just plug an Arduino Nano into, and I got one of them working yesterday. The module gives you everything pre-wired, including a real time clock module. So you can time-stamp your data in the. csv file, you just need two more commas and columns, and you can see when that spike occurred. I like this data logger. I intend to program it to accept a string from another Arduino and log it, with a time stamp, to a. csv file. The string will be a pre-formatted string sent via SoftwareSerial. h. That way I have the complexity and memory requirements of the RTC and SD card set aside from the Arduino doing the real work, leaving precious memory for other things.
Date: 2020-09-05
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Comments and reviews: 9
Helmut
Hi great project I got it rebuild and I included the Micro SD module. Managed to install the SdFat by Bill Greiman Version 1. 1. 2 installed. My question can you share your. ino source file you use in the project to log the data to the Micro SD card. In your video presentation you show the header files. But would a great help to share your final project. ino file to see how you log the data to the card. Thank you for sharing your great projects incredible stuff you put together
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Hi great project I got it rebuild and I included the Micro SD module. Managed to install the SdFat by Bill Greiman Version 1. 1. 2 installed. My question can you share your. ino source file you use in the project to log the data to the Micro SD card. In your video presentation you show the header files. But would a great help to share your final project. ino file to see how you log the data to the card. Thank you for sharing your great projects incredible stuff you put together
reply
Eric
Awesome video, as always: D
But, how would you recommend to implement the best and smallest voltage read into an project.
Im going to create a temp/hydro reader that will send data to an InfluxDB, with that im thinking of sending the current battery voltage.
And i saw someone just took two 10k resistors between the negative and positive rail and placed an analog read between. Is that what is included in the voltage reader you mention?
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Awesome video, as always: D
But, how would you recommend to implement the best and smallest voltage read into an project.
Im going to create a temp/hydro reader that will send data to an InfluxDB, with that im thinking of sending the current battery voltage.
And i saw someone just took two 10k resistors between the negative and positive rail and placed an analog read between. Is that what is included in the voltage reader you mention?
reply
Deepak
Great video. Watching all the videos has again peaked my interest towards elotronics. Keep it up: )
I have question regarding the power meter: Can it measure minimum current in range of 0. 01 milli Amps - 400 milli Amps with resolution of 0. 01 milli Amps.
I want to measure current drawn by a device when it is in standby mode, which will be very small. Thank you.
reply
Great video. Watching all the videos has again peaked my interest towards elotronics. Keep it up: )
I have question regarding the power meter: Can it measure minimum current in range of 0. 01 milli Amps - 400 milli Amps with resolution of 0. 01 milli Amps.
I want to measure current drawn by a device when it is in standby mode, which will be very small. Thank you.
reply
Theo
I see that you are using the 128x64 OLED in 128x32 mode too! I built the same thing but I could not fit evrything in the Nano and still have enough RAM for the OLED so i though WTH, lets try at half the width and it worked! In another project I used 2 Nanos and some interesting i2c communication between them to share the load and have the OLED working properly!
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I see that you are using the 128x64 OLED in 128x32 mode too! I built the same thing but I could not fit evrything in the Nano and still have enough RAM for the OLED so i though WTH, lets try at half the width and it worked! In another project I used 2 Nanos and some interesting i2c communication between them to share the load and have the OLED working properly!
reply
clambert2020
I recognize that this video and project is more than 3 years old but I need some help. The SD Card Module links are no longer valid. Would you please identify a SD Card Module that will work with this project? Thanks in advance for your assistance.
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I recognize that this video and project is more than 3 years old but I need some help. The SD Card Module links are no longer valid. Would you please identify a SD Card Module that will work with this project? Thanks in advance for your assistance.
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Nick
But how to measure higher current and voltage in ranges of (Current 0 - to - 20 Amps) (Voltage 0 - 80 Volts?
Which Arduino raspberry pi components/ sensors are good for this and work in such ranges?
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But how to measure higher current and voltage in ranges of (Current 0 - to - 20 Amps) (Voltage 0 - 80 Volts?
Which Arduino raspberry pi components/ sensors are good for this and work in such ranges?
reply
Arvinda
Is there any project to make lcd monitor convert in to wireless as well non touch screen in to touch screen function able to connect to computer system same as function as wired monitor to system.
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Is there any project to make lcd monitor convert in to wireless as well non touch screen in to touch screen function able to connect to computer system same as function as wired monitor to system.
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Achtung
Insane. I had to design a similar power meter for a project at my university and without ever having watched this video I basically designed the exact same system, using the exact same components!
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Insane. I had to design a similar power meter for a project at my university and without ever having watched this video I basically designed the exact same system, using the exact same components!
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Ecospider5
I wonder if you could connect a current transformer to the inputs. Do a little math. And have a high voltage power monitor.
Maybe the fact its designed for DC would be the problem there.
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I wonder if you could connect a current transformer to the inputs. Do a little math. And have a high voltage power monitor.
Maybe the fact its designed for DC would be the problem there.
reply
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