Arduino Multimeter V2.0 | All in one: V R C L I 

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Fantastic project! The serial port is an excellent addition! Good work, and thanks for sharing it with us!

i watched this video before but still cant get over how class this project is...

Very awesome work, I have loved your work from the very beginning you are so creative and so easy to understand.

Excellent explanation of all aspects of the design. I was looking for this type of an application since a long time. Cheers

Beautiful job, dude! Really well done!!! 😃 Looks like a great multimeter! I would buy one! 😂

What an awesome project, the most awesome one :)

I am waiting for this video :) Nice job

Can't wait to build it. Thanks.

Nice work. Two more ideas you could add, multi-channel voltmeter and square signal generator. Sometimes it is useful to see voltage on different points on a one screen. I do it by using analog pins, but you can implement multiplexer. And max and minimum level buzzer, if current, voltage gets to high or low.

OP this version is looking pretty cool

this was great and iam going to order this pcb now

awesome project, very well done!

Excellent project. Really interested in transmitting the measurements to PC. Hope you keep improving this meter!

Best project to end this year......

3:05 *FULL BRIGDE RECTIFIER* intensifies Oh, sorry, wrong channel 😂😂😂

Nice project. I tool a look into your code You consume many cycles inside the loop() method to identify the mode. if( mode == 1 ) then... if( mode == 2 ) then... if( mode == 3 ) etc.. This project has to move to C++ and make a class object with inheritance It can be super fast and probably can add more features later using the Uno.

Essential thoughts for the version 2.1. Make sure that the 4 mm banana sockest are 19.05 mm (0.75 inches) apart - this is the world wide standard for test gear. Include a 2x3 pin header location for ISP, this is very standard for Arduino-like boards. Consider tracking and pads for some sort of input protection. (And don't forget to get the display connector the right way round.)

Wow! Pretty darn awesome. Thanks.

Well Done Mate, you got another sub!!! I can't wait for the Version 3 😊 I would be nice to add the Full Power Meter as you did in one of you old project, with Voltage, Current and Watt meter on the screen all together. 🤔 What do you think?

Fantastic project! Thanks for sharing your knowledge, Thanks.

I have a strong grasp of Arduino programming but lack the means to acquire Arduino boards, especially here in Ethiopia. Your support in obtaining these boards would make a profound difference in my journey. Thank you for considering my request.

Awesome, keep it up,thanks for sharing.

beautiful project

simply just having an option for Bluetooth makes it better than most cheap meters you can buy!! but having an induction mode makes it a winner in my book,,, why it isn't on basic meters but capacitance is I would love to know.. class project and nicely done>>.

Very cool, looks sweet, except of the housing and that the switch is sticking out. Your single tutorials about the single measurements are very helpful, especially for beginners, like usual for you and this is a sweet project that I would love to see improved, in first place use a different display, what it needs is a big good readable display, no one needs colors on a mouse-tv for this jobs, use one of those 12864 COG displays, with an UC1701 driver or something compatible, there are libraries for them aswell, they cost around 4€ and are the best right before the pcd8544/Nokia 3310 lcd's by the price-performance ration, have big pixels and are very nice to read, I am short-sighted but don't need glases for this even if it's a good distance away. I want to build a propper multimeter, I mean a multi-meter, so a combination of a LCR-/Transistortester, multimeter and basic oscilloscope, maybe something else like a function generator, but stuck on the LCR-part, wish there would be an open-source code for the Transistortester from mikrocontroller.net, because I have no idea how to make the automatic-detection. I also want to use relays and pre-measurements, a protection through an op-amp or maybe something smarter, to make sure nothing will happen, if this, the connectors or cables burn it is bad enough, but I don't want to burn the whole circuit in case something happens, I never burned any multimeter or something like that, but this can happen any time to anyone, sure, it will make the measurement slow, but also gives the possibility to auto-range even the voltage. It will be not that small and I have a design in mind so it can be used as a desktop multimeter like as a mobile one. But something like that is a lot of work and I would completely understand if you wouldn't want to make it open-source, I'm not sure if I would, if I get it done one day, because only the osci code is a propper book by the size.

Excellent. I like it.👍

Nyc, I've a suggestion for you, connect wirelessly to a PC or tablet or smartphone to overlay values on the screen.. this will be awesome 👌

Nice work!

Great project. 👍👍

Instead of using the 328P and the bluetooth module you can use the ESP32 which have the bluetooth low energy option and have a so high processing capability, changing that ads1115 with other high sampling rate adc and you can have a low speed oscilloscope

It is a really good project

Great project😍😍

Good project 👍👍, recommend add power supply mode and doide mode

Nice work

Another good project from you! I was wondering can you consider to explain membrane switch and panel and order a custom made one from the factory ? this way we can improve our product look thanks

Very helpful project.

This was a very neat project. I was very excited to see that bluetooth connection and listen to your thoughts on sending the data to a smart phone. With the Bluetooth Serial Monitor app you wouldn't even need a custom app. I wonder how difficult it would be to have a data logging feature with an SD card or to have data logging on your PC. I do not know if a PC could data log from the bluetooth connection. I see that the maximum voltage is 30 V DC. Using an external voltage divider circuit to step down the voltage and then calculate the real voltage is one way to increase this range. I'm wondering if there is some kind of probe that can be built that can be plugged in to step down the voltage sort of what goes into oscilloscopes. Thank you for sharing.

Can you serial all the data to the commport? I like the idea of all the test ports being separated. Its less prone to errors. And serialing all the data to the comport so it can be displayed by a gui program.

Can you add impedance measuring to that design without much trouble? If you are going to do signal gen functions as somebody suggested then you have and AC signal from that.

Great project sir . Can you please make an egg incubator with humidity and temperature controller using Arduino and DHT 11 sensor

very nice project!!!... please add ESR and Frequency counter/generator....

Thank you very much this channel helps much. But i need help for my final exam, Can i measure 15Volt DC using a Voltage sensor module (has 3 feet) and 20Ampere Using ACS712 Sensor module (also has 3 feet) and integrate both of them with ADS1115?

great project sir but if you made the 3d printed case with some details of buttons and current position of rotatory also so it will be better too

Hi, very nice project! You're a Genius man! :) I have just a question, how is it possible to use the ADS1115 in differential mode to measure also negative voltages? Is there a simple schematic and an arduino sketch I can refer to? I just need to understand how a simple circuit is made to measure both positive and negative voltages, e.g. within -5 to +5 V.. I tried to have a look at the schematics, but I am not an expert so I could not figure it out.. Could you explain this, please? Thanks a lot for your amazing videos and also for sharing

can u build it with larger LCD..?? that would be better for practical use...

How do you read the negative voltages? U are using a full bridge rectifier so you always have a positive voltage on your analog input?! And the MB8S rectifier has a forward voltage (Uf) of 1V. So how do you read voltages below that value?!

Nice one! but you didn’t utilised ads1115 to it’s full potential I’m working on a multimeter for a week now and hopefully it will be completed in next few days, I will not be using any other ic except ads1115 and also I’m aiming for a resolution better than a 50$ multimeter it can even be able to detect micro amps of current. Great video btw!

Me gustaría hacerlo... pero la pantalla la veo muy pequeña... Conoces alguna pantalla más grande para hacer el tester? Cambiaría mucho el codigo? Buen vídeo!!

ngl i love the 'fuse' Why use fusus when thin wire also works?

Hi Pls help with making automatic room cleaner

Nice project, how can it be modified to make the input impedance for voltage high enough to be useful?

Hey dude! Can we add voltage and current graph to this multimeter?

Briefly overlooked the schematic and code. It seems to me that you didn't use any ISR. Has this a reason? The analog comparator and timer routines sure would be more convenient and efficient.

Can you please make a video where you make a active noise cancelling module

bluetooth communication using this board is possible or not please give answer if possible , how to connect its with your diy smart watch please answer

For this Pcb the Bluetooth communication is possible or not Please answer

Can you make a VFD using arduino? Great vid man!

I've tried it, it was very difficult, had to match the code with the components used, and he was very accurate to set the accuracy, my device part of the amperage hovered before the load was passed, and the ADS analog pin was broken because of the voltage check forgot to turn the selector switch to volt, maybe I didn't put a diode on the resistor input?.. basically this is a good project for hobby! 🙂

again a great video........can you make a esr meter with arduino to check components on board without have to desolder? most of the time its a faulty capasitor to repair something but you dont know witch and desolder everyone is a pain in the assssaaasssss........

Can this be used to check the smd capacitor value of the phone sir????

Greetings sir! if i am going to test the voltage of the dc motors that is connected on the arduino board using multimeter, does the arduino board will damaged? i am searching for hours about this but no information i got. i am hoping for your respond sir.

the acs712 has a slow sensitivity isn't reliable with that adc. that adc has an internal voltage reference and since the acs is ratiometric, small changes in the supply current will effect the output of the acs while not affecting the adc. With ratiometric sensors, it is best to use an adc that accepts an external voltage reference or uses the supply voltage as the reference voltage (like the mcp3221), and then to power the acs and adc with that voltage reference. an alternative, would be to use a non-ratiometric sensor like the acs70331 which I've found to be more accurate than the acs712, acs723, .etc. when measuring currents

Please make a through hole pcb design for the same multimeter

Hello Sir,Great Project ,I was eagerly waiting for this.... Instead of mechanical Rotary Switch Can't we use some Electronic Switch such as MOSFETS.......??

Can I measure micro Ohms on this. If not publish a micro Ohm Meter circuit to measure ground conductance.

great 😍

Nice 👍

Is the arduino program can also show battery life?

Thanks nice project. Do we need to sign up at electronoobs.io to get the gerber and stl files? At present the links on the electronoobs.io goto a localhost. Another question, can we get access to the schematics?

This project is great and best project. Can you make this vibeo 2nd episode how to connecte this to blueooth and its send data to home made google glass.i think its very important to us

hi I need a design of dc multimeter (current, voltage , resistance / connectivity) using arduino nano

Bro, please make a video on diode measurement

Can you make arduino smart glasses?

I love the project but I like it better if it can do it with a TFT display.

Hey electronoobs pls will u reply my one question. Plsss, I made ir remote controlled using standalone Atmega 328 pu microcontroller which controls 8 relays but 1 relay connected to AC fan which after switching on it makes all relays turn off it's like it get reset to off positions. What should I do to avoid this🙄

Disculpa y en español pero del mismo proyecto cuando???

Awesome

can you please share the editable file of this pcb project. or open this pcb in online client and share the link please

U make me wanna build one and just glue external boards voltage , current, but can go crazy and start adding temperature, humidity cud even add sd card for logging or MP3 😂 but i want build this one now where you selling the kit lol

is that the A70 or A50???

how can i measure uA?

Top. 👍👍👍

Call it C L I V R and it rhymes with 'clever'

Hi bro resistor tolerance% and watts ??

Firstly i'm not a electrician if i wrote something wrong please correct me. By reading acs datasheet there are only 5,20,30 amp versions. I don't think that slide switch for current measurement will handle more than 0.5A and probably pcb tracks too. For programing pins why you use pads instead holes like in serial communication port it would by much easier to programm. And lastly adding up all component cost that you listed it is around 70 USD + PCB + soldering time, for that you can get "realy good" multimeters. You have a lot of realy interesting project on your channel but this one...

I think it will be cool if you add oscilloscope mode in your multimeter 😁😁😁

Nice

Great

😍😍😍

hey @Electronoobs i am Vaper and i want to build myself a Ohm-Meter for my Coils. I have the Problem, to measure Resistance as low as 0,05 Ohm till maybe 3 Ohm. How to archive that? i did not find anything usefull, how to to that using a MCU .

That small switch cant handle even 5A. You should use some other switch otherwise great work :D.

Plz plz make 1 Mhz to 2 Ghz frequency analyzer it's so costly to buy

IF THIS HAS LIKE A 7 INCH DISPLAY IN A BENCH STYLE WITH ONBOARD T12 SOLDERING IRON AND HOT AIR STATION HOSE TYPE ITS ALL WE NEED

DIY a function generator please

good

Bro please make a Diode meter

10:07 seems like something wrong with polarity D7 and C4 ;)

can you send me a kit? i want try and make multimeter display in python.

HEY THERE