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Videos / How to use Data Logging on Mooshimeter

One of the most popular features of the Mooshimeter is the ability to log voltage/amperage reading to a local SD Card. You can set logging intervals (1 second to 1 minute) and any data reading present from your Mooshimeter will be stored as a CSV spreadsheet on the SD card.

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How to use Data Logging on Mooshimeter

Hey guys, Aidan here from Core Electronics and we’re back again with the Mooshimeter and today we’re going to take a look at how we can insert the SD Card into our Mooshimeter and how the logging works on the Mooshimeter. So the only things we’re going to need today is out smart device with the Mooshimeter App updated to the latest revision, we’re going to need our Mooshimeter taken out of shipping mode and ready to go. We’re going to need an SD Card anything less than 32 GB that is an SD or SDHC card will be sufficient and just a phillips head screwdriver to take the Mooshimeter apart. So we start by flipping out Mooshimeter over and you can see that there is 2 phillips head screws so we just need to take those ones out, now you don’t have to disassemble the whole thing, just have to take this back plastic cover off so we’ll go ahead and do that. So we just take this one off and once we get that case off we can pick up our board. Now if you at the board from the top down what you’re looking for is the V and A side, so the voltage and Amp Current side. Now if you flip the board this way you’ll see that there’s a tiny slot underneath this battery here so I’ve got my SD Card in there already because I’ve been doing some logging earlier today. So we can see that that’s the SD Card slot and it just clicks into place and once you’ve pressed it in it’ll click and you know that it’s in, and if you want to remove it you just click it out again. Now 16 GB of data is quite a lot for the Mooshimeter so what it’s going to be doing is storing both channels measurements at any increment that we set. So we can set it to do it every second or every minute or every ten seconds, we can even set it to do it as fast as possible so it will essentially use the buffer depth and the sample rate to go as fast as it possibly can. I’ve got a 16 GB card in here so that’s going to be plenty of space now all we have to do is reinsert our screws now that we’ve got our SD Card inserted. Now if you were to have no SD Card in your Mooshimeter and you tried to use the logging feature it just would not work in the app it would say ‘No SD Card Available’ but lucky for us we have one in there. Now one thing that I sort of glossed over and usually you won’t need to worry about it as well, SD Cards usually come formatted in the FAT file system if they don’t and if you don’t have an FAT formatted SD Card you are going to need to plug it in to your laptop or I’ll just grab a USB Drive to prove the point, so plug in our drive and all we need to do to format it is right click it and go down to ‘Format’ select FAT32 - see this one is FAT32 by default, select FAT32 and make sure we have quick format selected and we can give it a name if we want and we can start the format so that’s as simple as it is to format your drive. It needs to be in the FAT32 for the Mooshimeter to accept it as a valid place to put the data.

So now once we’ve got that, it’s all still working, it’s out of shipping mode we can just connect up to the Mooshimeter and wait for it to load up our settings. Alright, now we can enable logging here so if we go to the logging button that was down the bottom left here, we can go ‘Enable Logging’ . So now if the SD Card is present and the Mooshimeter is connected to the phone it will be logging data. We can set our logging interval to be whatever we like, so if we set that to 1 second our logging status is OK so that means the SD Card is ready to go and essentially this Mooshimeter will be logging data, especially if I had it connected to something. So that is essentially the quick run down of that, if you wanted to use a faster setting you could use zero seconds. Now it’s not actually zero seconds, it’s the sample rate and the buffer depth being used together to produce, essentially as fast as the Mooshimeter can logs of what is happening in your circuit, we’ll go back to one second.

Something else you can do here, you can load up logs, so these are logs of things that we’ve done in the past. So, I can load up a log of something I’ve done at 9.30 this morning and it’s going to download that log and straightaway I can email that off as a CSB sheet so that’s quite easy to do and once I’ve got that on my PC I can open it in any spreadsheet document or any word processor document but usually you would use a spreadsheet and that way you can create graphs and all sorts of good information and displays of the logs. So I hope that that has really shown you the ease of use behind the logging side of the Mooshimeter and we’ll be back with some more cool videos of what you can do with your Multimeter in the future. Thanks for watching guys, have a great day :-)

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