Tinkering with: ADS1115 analog-digital converter

[@PaulGrayUK]

Love that magnet trick for batteries, so going to use that neato trick.

[@RottnRobbie]

@ 5:20 you see "+- 6.144V" in the datasheet and comment that "... it can actually measure voltages higher than vcc..." But it's actually an RTFM moment... please notice the superscripted "(2)" in that line of the table, which references note 2, which says " *No more than VCC +0.3 V must be applied to the analog inputs of the device* . See Table 3 for more information". So when you applied 6V to the input @ 12:12, you were apparently just lucky that it didn't destroy the chip!

[@soundsoundsoundso]

Those Magnets blew me away!!! So simple, so useful. Life hack!

[@SusanAmberBruce]

I got an AD converter board that I haven't tried yet so this helps me out, thanks

[@davidv1289]

Great video, thank you! I have used one of these for a current monitor, the differential input mode makes this easy. I added some code to calculate the current based on voltage drop across the sense resistor.

[@retireeelectronics2649]

Excellent timing, I ordered one after seeing it on your mail bag. First order was cancelled by the seller probably because they had not jacket up the price, second order for one was more than the price for two in the original order.

[@pileofstuff]

The ways of the Chinese ebay seller are certainly mysterious.

[@spacewolfjr]

You seem like a man I could be a best friend with.

[@edinfific2576]

Me too, minus alcohol.

[@kyleallred984]

Thank you for your videos each one keeps me inspired to pursue this as a career

[@andymouse]

This is a great ADC, the libary I ended up using allowed you to set the programable gain and the sample rate so you got the whole shebang and I used it with a Nano ammeter I built with one of those 0.96" displays, great chip I would use it again and worth getting a shed full if ya can...cheers.

[@BrianBoniMakes]

You never mentioned what the other modes are, now I have to find out. I can see a lot of uses for projects. Could also measure temp, weight, pressure, piezo load cells. 4 inputs is good for general uses. And an adafruit library, Nice.

[@jeffvenqueleir2036]

yes see my reply a little bit higher

[@AnotherMaker]

That's really cool. Thanks for sharing. I might need to add a few of those to the collection.

[@pileofstuff]

Hopefully you can find a good price on them. It seems to be all over the place at the moment.

[@onecircuit-as]

Nice little board, and nicely explored! 👍😀

[@samhorowitz7593]

Awesome video, just found your channel and subscribed. Thanks!

[@pileofstuff]

Welcome aboard!

[@tormodjoh]

Have you tried the MCP3424? a 4 channel 18Bit ad converter with programmable gain and max sensivity of 65,2uV pr. div (-0,512v to 0,512v) I use it for a direct input from a strain gauge.. combining two inputs to one

[@pileofstuff]

I haven't. It looks like a good choice if you are looking for more precision.

[@frankowalker4662]

Neat. I might have to check them out.

[@MkmeOrg]

Really well done. Enjoyed that tinker fun :)

[@TheEmbeddedHobbyist]

Well the voltage is easy to calculate, its (Vref/2^16)*count. Dont know how many of these 16 bits will be below the noise floor on a demo board, could be fun to find out.

[@ericblenner-hassett3945]

Since it is I2C, it does mean more remote monitoring of voltages where 1 phone cable carying the I2C would have less loss than the same distance time ( up to 4 ) wires to monitor batteries.

[@pileofstuff]

Absolutely. Another application that I hadn't thought of.

[@ericblenner-hassett3945]

@@pileofstuff got to love how phone cables and I2C have their uses and are redily available 😁

[@raviumarji539]

Hi,can we use zmpt101b ac voltage sensor module with ADS1115 ?help please,thank you

[@spacewolfjr]

I've been looking for nice Dupont silicone-coated hookup wires, would you recommend those? I looked at our best pal Universal Solder but theirs looked like not great quality ones.

[@pileofstuff]

I looked at the silicone ones briefly (after seeing Andreas Speiss using them), but got a bad case of "sticker shock". I haven't had any failures of the cheaper ones yet, so I'm not very motivated to move to the more expensive option.

[@spacewolfjr]

@@pileofstuff thanks! I might bite the bullet and buy some silicone ones from AliExpress and pray to the big Spaghetti Monster that they're decent. Where did you get yours?

[@pileofstuff]

@@spacewolfjr I don't have any silicone ones. The wires I do have came from the cheapest e-bay seller I could find at the time (as is my standard method)

[@IanG-uf2fq]

Hi, with the pink display on your desk, what does the number at the bottom represent please?

[@pileofstuff]

subscriber count on youtube.

[@roelandriemens]

When you changed nr 5 at 14:51 there was even a negative voltage. In the datasheet there was also a + - voltage input written. Can it handle reversed polarity voltages?

[@DavidPlass]

11:08 WE stands for Wolles Elektronikkiste, just like in the URL at 11:08 :)

[@pileofstuff]

I"m not brave enough to even try to pronounce that on camera...

[@aleopardstail]

watchout, there are a lot of jokers selling there who will ship you the 12 bit version, while advertising it as the 16 bit version

[@davidwalters8225]

Great video.

[@stephanc7192]

Excellent video! May I ask why you used a level shifter?

[@pileofstuff]

Level shifter? Are you referring to the USB-DMX adapter?

[@stephanc7192]

​@@pileofstuff The small board between the ads1115 and the esp32? At 2:00

[@pileofstuff]

@@stephanc7192 Ahh, that. It's one of these: pileofstuff.ca/r/25f84 (or similar)

[@stephanc7192]

@@pileofstuff yes. That one. I am building a unit to read a presure sensor. Why do you need a level shifter? Kind regards

[@mr.techinventor3463]

awesome

[@taranagnew436]

can you link the i2c detect sketch?

[@pileofstuff]

www.arduino.cc/reference/en/libraries/i2cdetect/

[@zyghom]

this module has one but BIG error in design: when you disconnect the Vcc but the measured voltage is still there on the input pins, the module goes to trash. I lost 2 of them this way before I realised this. That should not have happened - you can imagine that this is very common case: Vcc gets disconnected while the measured voltage is still there. Probably 1 diode or so would solve it (however I am not sure how) ;-)

[@donaldkormos5529]

Is there an option for a calibrated external reference voltage? Arduino Uno has one I think.

[@pileofstuff]

The datasheet says internal reference is the only option.

[@SidneyCritic]

I'm assuming it's free - lol -, but what Linux vid edit software is that.

[@pileofstuff]

I wdit with Kdenlive. Its one of the better Linux native editors I've found. Good balance between usability and capability.

[@jamess1787]

Hello fellow pegger, I just spent $100 on junk I don't need. Thanks :) 😂

[@pileofstuff]

You're welcome. Don't forget that Mailbag Monday is coming! (bwahaha)

[@joeteejoetee]

ProTip: Use a Pencil to point at your circuits, not a conductive rod #THOR

[@pileofstuff]

My pointer is 3d printed out of plastic

[@ElmerFuddGun]

Pro Tip: a pencil *IS* a conductive rod. Pencil lead is made of graphite and conducts. It's not a great conductor but I wouldn't be pointing at high voltage circuits with it. Get out your DMM and check. My HB #2 pencil was reading about 10 ohms across the diameter at the tip. ;-)

[@undercrackers56]

I do wish KZbin contributors would make it clear that they are using a specific platform such as Arduino. It is unfair on the audience to have to sit through six minutes of wind-up just to find that you are using Arduino libraries, like almost everyone else.

[@jeffvenqueleir2036]

I use this for my 7s battery with a voltage divider r1= 120000 omh r2 = 1000 omh max input voltage 31Volt this give me a resolution of 0,000946044921875 for 1 count and output 8 use i for my amp meter 30amp 200mv and i am happy with the result with a little math you can calculate each cell and see which is the min and max voltage of the 7s pack

[@BrianBoniMakes]

How many cells?

[@jeffvenqueleir2036]

@@BrianBoniMakes 280 cells 7 serie X 40 parallel or 7S40P. Max voltage pack 29.4 volt.