Voltmeter module M5Stack (high accuracy)

Рет қаралды 26,552

Күн бұрын

Пікірлер: 66

@benbaselet2026 3 жыл бұрын

That acquisition speed is really glorious. And the sharp display... puts regular cheap old DMMs to shame in that respect.

@AgentOffice 3 жыл бұрын

Never seen one that fast

@eziolucarini9444 9 ай бұрын

I came across this project and it's amazing to me, and I immediately subscribed to your channel. Thanks to you I discovered the M5Stack ADS1115 module which uses the comparator thus allowing the polarity inversion which is fundamental for my project. Still watching your other videos, I also bought the Lilygo T4 S3 Amoled touch and I'm trying to use it with this project but for the moment without any results... sooner or later I'll succeed. I congratulate you on the very nice graphics and thank you for sharing your work publicly.

@erikderuiter7475 Ай бұрын

I got it working with the LilyGo T-display S3. Did you succeed also?

@LostInTech3D 3 жыл бұрын

Very cool... m5stack are killing it lately.

@rons1566 3 жыл бұрын

Fun project and I’d like to say that your English is excellent and easy to understand.

@VolosProjects 3 жыл бұрын

Thank you

@y2ksw1 2 жыл бұрын

Don’t worry about comments. I am a professional engineer and appreciate the effort to make rather than buy hardware. Many times such hardware is needed when space is rare and only one power supply available. Or simply because external hardware is not desirable.

@Reverend11dMEOW Жыл бұрын

I am just getting started after a 40-year hiatus from my TI TMS9980 trainer board I had great fun filling memory gaps, including a whopping 2k Nonvolatile Static RAM I found as a sample from the mfr., back when an experimenter/learner could connect with these chip giants via snail mail and even get source code for some stuff, for comparison or whatever. I chose ESP32-C3, -C6, -S2, -S3-BOX looks similar, voice recognition onboard inbox for the latter. Still gathering the last few tools for the bench, maybe probably a 'scope, and then we shall see who wins. I am very impressed with your T-Display GPIO Programmer concept. Really got me champing at the bit to get the databooks memorized again. heh

@galatei11 3 жыл бұрын

Awesome, thanks for showing it off, and sharing the code. I like that you used plain C stack rather than the annoying UIFlow, nicely done, cheers.

@wylieecoyote 2 жыл бұрын

Great job! The journey is just as important, if not more important, than the destination. Anyone who does not understand that needs to be watching cartoons.

@VolosProjects 2 жыл бұрын

tnx, i agree.

@The22v10 2 жыл бұрын

Way Better than a RGB Light 😛... Great looking display. NOTE : Any voltmeter connected to the internet is More than $100 so you are right on.

@peterteal880 3 жыл бұрын

Another great video. I really enjoy your channel.

@xoffdraccel1174 3 жыл бұрын

Ads1115 from it has got 4 channels. Is Vmeter using only one? Why do you have inverted polarity? Great series of videos, thanks.

@filipereis1623 3 жыл бұрын

Following your beautiful program Calendario, I came across this extraordinary video about the DC voltage meter. I will review your videos, because we all know much more. Thanks. Hugs from Portugal.

@VolosProjects 3 жыл бұрын

Tnx man, cheers from croatia

@GotchaPine007 3 жыл бұрын

Agreed with your comment bro. Sure you can buy it for less but the fun of building it has no price !

@stephenreeves4898 Ай бұрын

Great demonstration, it’s working great so I’ve made a clone of the V meter module using the standard 4 channel version to enable me to carry out some more testing. I would like if possible to use the A2 &A3 channels so that I could have 2 voltmeters in one but not sure if I could adapt your code ? but trying to figure out how to add the other 2 channels the displaying part is quite easy to 0:10 adopt my understanding is that the changes need to be made in the cpp file ?

@markgreco1962 3 жыл бұрын

Nice work

@daviddempster3520 9 ай бұрын

Love your videos, and I have purchase many of the m5 stack dev board. I wanted to try and make this project on on the Core2/Core3/m5 Paper. I get a a successful burn, but no displays on any of the devices. I have even trying to use Arduino for my Mac OS and Windows 11, just a blank screen. I must be missing a step? I would love to use this program in the field for testing. Keep up the great work making blinky LEDS for the kids!

@VolosProjects 9 ай бұрын

Thank you my friend. When this example was made, libraries was completly diferent and that is cousing problems. This is one of the earliest videos. You can try to compare this code with new examples from m5stack core2. i think you will need make only few slight modification. And it will work thern. probably problem is in init part of code (init or begin), rest is always same.

@karllaun2427 3 жыл бұрын

Very nicely done. Don’t listen to the nay-sayers. It’s your channel.

@electronic7979 3 жыл бұрын

Very nice

@WaschyNumber1 3 жыл бұрын

I like this very much, now people can make ther own custom display voltneters. 😊 Missing only the ampere meter Funktion and wattage, but I like this very much. 👍🖖

@qzorn4440 3 жыл бұрын

what wonderful project... the thing about a DIY volt-meter is you can hookup different sensors 0-10v 4-20ma and calibrate the display to things like distance in inches or mm with alarms... thanks a lot and i just found this great you-tube channel... 🙂 cool, be creative

@AJB2K3 3 жыл бұрын

Thank you, nice work there? Have you considered using the SDCard for data logging?

@VolosProjects 3 жыл бұрын

I haven't , but that woud be cool, tnx :)

@miguelalvarenga3740 2 жыл бұрын

I enjoy watching your videos. They've inspired many of my projects. Would mind sharing the specific code for the TTGO controller shown in this video. I have exact same board. I've been trying to make the M5stack volt meter work with Lilygo ESP32 controllers for a while now. Thank you in advance.

@ddjazz 2 ай бұрын

Eevblog subbed to you in his latest mailbag video referencing this video

@VolosProjects 2 ай бұрын

Omg, thats great, thank you my friend for letting me.know. 😀

@labgsm8185 Жыл бұрын

Nice work Thank you

@Dr.Trigrminal 14 күн бұрын

does not load correctly - is there an updated idea code that we can use?

@SarahC2 2 жыл бұрын

Cool! Do you have the code for the M5StickCPlus online too please?

@kris_maussen 3 жыл бұрын

Is there a possibility to send the data via MQTT over wifi vs ethernet (if module available)? Looking forward to your answer.

@alexliu7458 2 жыл бұрын

Thank you so much for the cool demo. I can't wait to have the cool Voltmeter as what you got!! After saw your video. I also bought the Voltmeter and TTGO module from Amazon and tried the code. I don't know what's wrong there. I can download the code into TTGO without error. But the LCD won't display anything. And I tried to Serial.print the voltage. The value always show me zero. Not sure what happen. Can you give me some suggestions? Thanks.

@learningToCode-xd4hs Жыл бұрын

Same here, the voltage in Serial is also always zero for me. Did you find a solution?

@erikderuiter7475 Ай бұрын

I copied the code for CALIBRATION from the video, comments added via ChatGTP Explanation of the Code Setup Function: Initializes the M5Stack and I2C communication. Configures the voltmeter for single-shot mode, 8 samples/sec rate, and a default gain of PAG_512. Sets up the LCD with button labels and expected ADC value calculation. Loop Function: Handles button presses: Button A: Configures for 5V calibration (gain PAG_512). Button B: Configures for 60V calibration (gain PAG_4096). Reads and processes ADC raw values, storing them in a circular buffer for averaging. Displays calibration data, including expected and measured values, on the LCD. Comments: Added for all key sections and calculations, making the code easier to understand.

@ahmadhafiz4567 Жыл бұрын

I hope m5stack build one for AC voltage sensor

@viniciogomez9863 2 ай бұрын

Puede medir amperios, ohmios, resistencia, capacitancia?

@2oldguysflyingblind631 2 жыл бұрын

well i picked up the m5stack core 2 and the volt module just cannot get it working with any of the example codes from mstack or github just wont move passed the calibration screen have down loaded other programs just fine and in uiflow i can measure voltage in mv only have to admit little let down on the voltage module

@calix5511 3 жыл бұрын

Nice project, i love it. Could you share me the source code of StickC Plus?

@SarahC2 2 жыл бұрын

Same here! Did you get an answer? Nothing on the github yet!

@MaxStreber 3 ай бұрын

Hello, I am a big M5 Stack friend. Unfortunately I despair at the error messages in the Android IDE. Is it possible that you could make a small extension of this program for the M5 Stack Core S3? A coffee donation would then be certain. Greetings Max

@estebanguerrero1224 2 жыл бұрын

Muy buen video.

@habiks 3 жыл бұрын

if this is your first "proper" adc that can/has to be calibrated, how do you know it is accurate? You don't have anything to compare it with. A good voltmeter consist of a proper voltage reference and a good adc..

@Meow-hw5wi 3 жыл бұрын

It is factory calibrated, and the calibration parameters are stored in the onboard EEPROM. This meant not to be the best-in-the-class voltmeter (for its price, and positioning), but it offers all the necessary things like a decent ADC, voltage divider, and isolation. Maybe you can check here to know more about it. -> docs.m5stack.com/#/en/unit/vmeter

@jeffvenqueleir2036 3 жыл бұрын

i have make just one with 7 channels for my 7s battery pack also 36;6 volt max and i have calibrated it with a LM399 tool or AD584 i have try both device and the result with a INA226 also 16 bit is crazy good a few less then 10 mV for the people the want the buy it it is a verry good price for that accuracy i don't think you find a better price for that kind of sensitivity and the layout is also nice and btw and channel 8 from my ads1115 i going use this for a amp meter

@erikderuiter7475 Ай бұрын

I have a very accurate fluke 287 and I can confirm that the module is very accurate! only a few mV off.