#285

A picture says more than a thousand words. This is why the world is moving away from text to images and videos. We, as Makers, can profit from this movement because we get dirt cheap hardware to play with. And if it works with an ESP32, even better. Time for a closer look.
I am a proud Patreon of GreatScott, Electroboom, Electronoobs, and others.
In this video I will:
- Compare the features of the four boards
- Try to get all of them working. Here we will see that we have to overcome the usual obstacles
- Try to use the new class of I2S MEMS microphones presented in my last mailbag. Two of the modules have such a microphone included
- Try out two sorts of camera lenses
Links:
ESP-EYE: s.click.aliexpress.com/e/3jk8a0TI
ESP-CAM: s.click.aliexpress.com/e/pdyJnZgU or bit.ly/2Zyo6cc
TTGO ESP32 camera Black: s.click.aliexpress.com/e/Enh3I63Q or bit.ly/2ZpSEMR
TTGO ESP32 camera White: s.click.aliexpress.com/e/FpeW9hHm or bit.ly/2ZkvRCp
TTGO T-Journal: bit.ly/2ZzlPgV
Different cameras bit.ly/2ZmJEYV
Sketches and overview: github.com/SensorsIot/ESP32-C...
All use the OV2640 camera and some I2S MEMS microphones
Supporting Material and Blog Page: www.sensorsiot.org
Github: www.github.com/sensorsiot
My Patreon Page: / andreasspiess
My Bitcoin address: 19FSmqbBzb5zsYB1d8Bq4KbxVmezToDNTV
If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel
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Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my primary job

[@gotj]

The ESP32-CAM has an SD-Card slot. And a big white "flash" LED.

[@raguaviva]

These videos are so good! You can't imagine how much people you are helping and how much of a time saver this is.

[@AndreasSpiess]

Thank you!

[@Average_Geo]

Boy! Great prices and lots of potential! Thanks for getting my thought juices going this morning! As usual, great video!

[@nigel1964]

Thank you Andreas for taking the time to explain the differences. Its getting more interesting with the advent of the cameras. I know they have been around for a while but with the advent of Internet connectivity it gets better.

[@science4allworld587]

Thanks. Right timing... last month i had started playing with esp32-cam

[@TimNortonGuru]

Thank you so much for your videos. I would love to see more on cameras.

[@everydayengineer8117]

Hi, If you are interested in using a board mount lens to better fit your application, try this simple adapter: Board mount adapter concept m.kzbin.info/www/bejne/h3qmZ3mqnrqlhbc How to build it and image comparison m.kzbin.info/www/bejne/imGzZGqXetOYqtE Image comparison without my Itanglish :) m.kzbin.info/www/bejne/lXykq6yLaNZ-gNU

[@asdomega]

Thanks Andreas, good timing for the video. My wife ordered me to install some cameras in the parking area. By the way, I realy like your design (Background, Charts, transparent Pointer)

[@mtarquinio]

Thanks for another very time saving video. I have a TTGO “white” and one of the many ESP32-CAM clones myself, so I highly appreciate you sharing what you have learned so far. I also got and M5Camera because it comes in a nice LEGO friendly case. For image recognition I think the K210 chip combined with MicroPython will be a strong contender.

[@AndreasSpiess]

I plan to do something with the K210 in the future.... I agree it might be better suited.

[@RoboNuggie]

What an excellent video, thank you Andreas...

[@AndreasSpiess]

You are welcome!

[@avejst]

Interesting as always 👍 Thanks for sharing 👍😀

[@springwoodcottage4248]

Interesting & amazingly low prices. I wonder if they have launched a bit too early, but perhaps need feedback to see which are the best directions. Perhaps in the by & by more polished versions will come, but interesting challenges now to find a use for them. Thanks for sharing such valuable experiences & all the super useful side by side comparisons.

[@bfx8185]

I'm sitting in the first row long time :D Thank you for your review report of the boards. Two project what I have in mind is hidden security camera inside the house which is able to recognize peoples. (mostly me to start sequence like turn on the lights , heating my soldering iron :D and make a reports of overnight measurements) Second one is wide lens cam in car to record when somebody scratch my car on parking place. (you know it how it goes at supermarket parking place)

[@planker]

I made it here today 9/12/22. I have followed you through many Arduino episodes all the while having a stashed away ESP32-CAM module. With the Arduino IDE this was a simple set up, It works. Yes this is some Old business but New to me and the IDE thinks it's just a funny looking Arduino clone. Thanks, good stuff.

[@AndreasSpiess]

Glad the video was helpful!

[@dot-bob]

Thanks for another great video. I have been toying with the idea to use the esp camera module to control a sprinkler turret to target garden pests like deer or racoons. First start with basic aiming. Then see object recognition so target deer an not people.

[@deanhedin1615]

Great overview. Very helpful. Thanks.

[@AndreasSpiess]

Glad it was helpful!

[@milindkhurd]

Thank you Sir. Ur awesome.

[@wojciechg9498]

I have a big question for you Andreas. Do you confirm GreatScott's statement that the camera modules salvaged from the high-end smartphones are unusable for amateur makers? Due to unknown specs and protocol.

[@erygion]

One day I'll have a lab cat too! Great video Mr. Spiess. 😊

[@rsg1296]

Andreas, Viel dank für sein arbeit. Grüssen von Spanien.

[@AndreasSpiess]

Bitte, gern geschehen.

[@amsf2011]

Thank you Andreas for your wise and clever videos

[@AndreasSpiess]

Glad you like them!

[@anonimuso]

I really like your 'invisible hand' pointer. :)

[@AndreasSpiess]

:-)

[@rklauco]

I used a set of these cams for Motion and works no problem.

[@bobdoritique7347]

Merci Andreas. I am interresting for a video about I2S MEMS Microphone with esp32 if it is possible?

[@mt-qc2qh]

I've been working with the AIThinker esp32 cam for a while now. I've programmed rtsp from the web, snapshot on interrupt and streaming mjpeg that cam be captured with ffmpeg on an RPI, viewable with vlc. In all cases, I add a web configuration page and employ OTA with the Arduino IDE. It's a great little device for $7. I don't play with facial recognition, but it makes a great little fpv camera on my robot platform. Lot's of fun to come.

[@ludogomez]

Hello, I'm interested by your work. Is it possible to share ? Thanks a lot.

[@dbiswas]

This is exactly I am planning to do. Looking for a very optimized way and do most of my compute on the Controller.

[@AndreasSpiess]

Very good!

[@handleftman]

Hi , this board can be used to protect the zone, be installed in the door. It can be used as a control point for a smart home. For example, going to the camera, she will notice the movement and activate the microphone, using the camera you can recognize the talking person. ESP32-cam will allow you to take photos on an SD card, store and transmit data for rpi3+.

[@stu110]

thanks for another excellent video

[@AndreasSpiess]

You are welcome!

[@rikjansen8795]

Great video again. My project will be a doorbell camera, where a Rpi does the motion detection on the camera. When someone is detected or the doorbell is pressed it will send a Telegram message with the picture(s)

[@docwhogr]

where you can buy the fish-eye lenses alone?

[@johncrunk8038]

I see you have the same cat accessory on your workbench as I.

[@jamesgazin9447]

I have one too. In electronics you really need a mobile static electricity generator -- it makes life sooo much more interesting!

[@PhG1961]

Great video. Suggestions: OCR/ANPR. Take picture or trigger a relay (and send email/sms) when a certain partern (license plate or random word/sentence) is detected. I've put Weinheim on my agenda. However, not sure if my wife agrees on my (short) travel.... but it's worth trying.

[@zx85]

Really handy to know about the 0 ohm resistor for the external antenna - thanks for that!

[@AndreasSpiess]

I also learned it after I wondering why it did not work...

[@Tarbard]

Very useful roundup. A Pi Zero + cheap cam + sd card is in the same price range though so I will stick with those for now.

[@cabe_bedlam]

Its really hard to use anything other than a pi zero now they have put wifi on them.

[@TuttleScott]

what I was thinking. the esp32 is a bit limited for video work.

[@justDIY]

Is there any performance difference, or just the different modules bundled with the board?

[@rklauco]

Wait, esp32-cam (2nd tested) does have microSD slot, right under the lens...

[@ArducamOfficial]

Great vid, we also have an ESP32 camera with all the cool things mentioned in the vid, and we just released the very first stereo camera for RPi, please do a review on them (we can send samples)!

[@falias4]

Nice coincidence. This week I spent 4 hours to get the M5Stack Dev-Board working, that I purchased a year ago. It's really hard to find information about such older boards. My project idea is just a simple portable camera, that is working in seconds... to observe my cnc or stuff I'm making in the kitchen.

[@alfadex50]

Hi , i didn't understand did you try any of those with i2c microphone?

[@Accou25]

very informative, thx

[@AndreasSpiess]

Glad you enjoyed it!

[@juanpablocadenaaguilar5929]

Good afternoon Sir. I just found your channel and it is awesome! Is there any reference for the thesis you were the expert that you commented at the beginning of the video? the one about using esp32-cam to count people in a conference room... Or do you have any tip or tutorial for something similar? Thank you for sharing your knowledge!

[@AndreasSpiess]

I do not know if it was ever published. I saw some tutorials for the ESPcam and video transfer, but I do not remember where

[@BenMitro]

rear view and the like cameras on vehicles are generally analogue to overcome the delay inherent in digital vision systems. It would be useful then to characterise these boards in terms of latency. Are any good enough to be used for vehicle rear vision? Also, I guess we need a maximum number in ms latency that will not interfere with real time vision applications to compare the cameras against.

[@fleaniswerkhardt4647]

Great video! Thanks. I have a question about the chart shown at 04;20 - detailing the Esp32-cam . It says no SD card slot is available. I'm holding this exact same board in my hand - and there clearly is an SD card slot . I haven't checked that it works but I'm sure it will.

[@AndreasSpiess]

You are right. I pinned a correction post as the first comment ;-)

[@geirandersen7941]

I have a couple of ESP-EYE modules, which I would like to use to count peoples in a room. If anybody have a suggestions or link to a project, please let me know, thanks!

[@per-arnejohansson7476]

Maybe you should ad that no cats were woken during the making of this video ;-)

[@pisoiorfan]

It would be useful to know their mA used while streaming video over wifi, recording on card and sleep/low power mode (with PIR active), That would provide an idea about how big a battery/solar panel they need in different remote camera applications.

[@PawelRaszewski]

cezar t I managed run the second board on a single 18650 3000mAh for 6-7h. The module gets quite warm. It’s clearly not very power efficient. I wasn’t even streaming anything just run the example sketch.

[@drmosfet]

If you ever do another review of these types of camera devices could you please show us the low light level ability of the unit. Thanks for video's there away full of useful info and no BS.

[@AndreasSpiess]

I think they are bad (very small sensor). But maybe without an IR filter, they could be used with IR illumination?

[@amirbutt6443]

Hello sir, I hope you are doing well. First of all I must say you are a mantor of mine, "if you can't explain it simply you means you dnt understand it" your Explain your videos very well despite of your acsent.

[@AndreasSpiess]

Thank you!

[@martinmacko7297]

Hi! Could you please help with ESP32? My ESP 32 always gets disconnected from WIFI every 1-2 days. Do not you have issue?

[@foxabilo]

I have tried both the USA and the UK stock on about 40 items so far, they take the same 20-30 days to arrive as the china ones, you just pay more for them.

[@hygri]

I had the same problem with the ESP crashing because of the camera - I just re-seated the flat flex in the ZIF connector and it worked fine after that

[@AndreasSpiess]

I tried that a few times and also changed the camera. Without success :-(

[@NSBSpeshal]

@@AndreasSpiess Don't buy the www.diymore.cc/ version of the ESP32 cam, mine came with a split ribbon cable to the camera which they suggested I solder back together, replaced the camera module and it will NOT stay connected.

[@simonbach5153]

Is it somehow possible to stream video and audio simultaneously from the i2s mic on that ttgo boards? In every examples i found so far only video is streamed. With both i would be a great baby monitor... Does someone know if it's been done before or has a link ?

[@Boogiemoose]

I have the ESP32cam as security cam outside and it works as it should. But at night its not that good even tho the spot it recording is light up with lamps.

[@brendanbarbour8568]

Surely one ideal application involving pattern recognition would be a "Guide Scope" for a computer controlled telescope mount. This would permit long exposures, which is the critical requirements for deep space telephotography. The characteristics of the camera and lens will be critical in order to work in low light conditions. It is so exciting, I simply must do it...what is the conversion efficiency of the camera chip is it a CMOS or CCD Camera..?

[@matthewfelgate]

Informative video. Thanks. Could I buy a separate OV2640 camera and connect it to an ESP-32 board? I guess only these ESP-32 boards are designed with a connector for a camera?

[@AndreasSpiess]

I do not know.

[@beware_the_moose]

Was that the audio output from the microphone or just a graph?

[@KikiTay]

You are AWESOME!

[@AndreasSpiess]

Thank you!

[@danieconradie2117]

Very useful video, thanks! I've been thinking of getting some of these boards, I have some project ideas very relevant here South Africa: 1) Intruder recognising security cam: Take pictures or a short video when sound is detected, and send it to a PC/Raspberry Pi/cloud service to do image classification to detect if a human is in the image. It then sends a alert and photo if a intruder is detected. Way less false positives than a passive security sensor. We have a very high violent crime rate, so it could literaly save lives. 2) Wildlife camera: For wildlife research in game reserves, it is a much cheaper alternative than commercial trail cameras so many more of them can be deployed. Photo's can be stored for later access or sent it to a GSM-wifi gateways. It can also be used to prevent human-animal conflict, like detecting when a lion/leopard/jackal comes close to livestock enclosures and send alerts. Both of the above ideas can be tested in my immediate area, and I also have access to world class game reserves if you're interested, so let me know!

[@Kaister]

I'm also from South Africa and was also thinking of how this could be used in game reserves.

[@langhaarschneider]

My project idea would be to add this camera to a WiFi controlled plane to fly it in first person view. Can you tell me anything about latency?

[@webslinger2011]

I have tried motionEyeOS on rpi3. Great for setting-up surveillance cams connecting on my network. Going to use it on my mobile toy robot school project.

[@neelimaranade2418]

I am also using the pi zero w + motioneyeos with a cheap camera without any lense for my DIY home security. The cost and setup ease seem to be much better than ESP camera to me. Am I missing something here?

[@nargalda773]

nice video, i was waiting for something like this for long time! I want ask, are any of these cheap boards suited for primitive monitoring of my house, streaming over home wifi to mobile?? nothing HI-res, just see, if people or cars are moving around etc, are these capable runing from bateries only (18650 i gues)?? how long if yes ? I have raspberry pi zero with 5mpix camera with motionEYEos, which work pretty good i think, are any of these boards similiar to this in image quality or capabilities ?? Is better use theses, or buy (outdoor) ip webcam and use that??

[@fuzzie4755]

The battery power will maybe work for an hour or so. Nothing that works for normal interaction. The video stuff quite takes a lot of power. If you just wake up with a door ring it might work better because the you always need only a few seconds full power.

[@paaabl0.]

Great video, tkanks! Have you try to actually check the sound recorded via i2s mems ? They struggle a lot with RBP ('works' but super poor quality due to audio drivers and omega onion, where i2s don't work at all despite claims by the vendor)

[@AndreasSpiess]

I only looked at sound levels, not actual recordings as I have no plans to use it for that.

[@DougHanchard]

Either you are a very brave and trusting Cat owner, or your cat is tech savvy and knows how to avoid destroying your lab!

[@AndreasSpiess]

My lab is a mess, especially behind the scenes. So far she did not destroy anything. The only disadvantage: I everwhere find hairs...

[@wombat9999]

@@AndreasSpiess - Makes me wonder how many parts, cables and such are _under_ the cat.......

[@siskodata]

If only there is a board with 2 way audio, camea and pir then we could do a smart door bell like the Ring smart camera door bell. Instead of paying a monthly fee to record to their cloud account we could record video to a home lan based nas or server.

[@nielbierman5882]

Exactly what I would like to do with these boards.

[@nielbierman5882]

Exactly what I would like to do with these boards.

[@Justsquareenough]

Me too

[@chemamunoz4227]

Me too!

[@cameotic]

I'm also considering a ESP32-based intercom with ability to unlock an electric lock remotely.

[@TecSanento]

What did you do to et such a great image? Mine has always vertical lines which makes the video quite unusable... I tried 3 boards and 3 cameras of esp-cam

[@jrsubs]

@@PineCoffee Try a big capacitor on the power supply?

[@albertroswell]

I will work soon in a project to start using this cameras for home presence devices

[@AndreasSpiess]

Good luck!

[@TomaszDurlej]

I was thinking some day ago as simple video stream for having look at remote analog sensors witch don't suport digitalization. Like thermometer on old furnace. Mayby some image resolution things can digitalize shuch sensors.

[@ukrainegermanysingforukrai5888]

Tomasz Durlej I would like to have recognizance of number on a LCD display. As a a result many measurement devices could be dizitalized and connected to the web for data reading. Can somebody help?

[@sylvaindecrom]

Thanks for another great videa Andreas. Quick question, do you know of any good Hackerspace in / around Zurich?

[@AndreasSpiess]

AFAIK there is a fablab there: zurich.fablab.ch/

[@sylvaindecrom]

@@AndreasSpiess many thanks, I'll check it out

[@MrCareyer]

The CameraWebserver Sketch is very basic and afaik only uses one CPU core. Maybe we could split the workload of the MJPEG compression among the two cores? (e.g encode odd frames with Core1 and even frames with Core2). That would maybe boost frame rate and performance quite considerably? Cheers!

[@scrampker]

that would be really cool. Currently performance is pretty bad on these, even at 1080p.

[@klassichd10]

Key note Speaker @ UKW Tagung Weinheim! Respekt! When I was Young I have been there. Above all for the famous flea market…

[@AndreasSpiess]

I thought I mention it. Maybe there are a few viewers in the area... I was never there and probably leave the wallet at home ;-) Too dangerous.

Hi Andreas, and thanks for sharing all your knowledge!!! Your video, as always, is very interesting and if it wasn't because my OV2640 project is based on the Esp8266 (previous to the appearance of the ESP32) I'd go for it without delay, but I have 10 alarm sensors running on the Esp8266/OV2640 and PIRS. I know my question can be a bit off the beaten track, but after quite a thorough search in the net I haven't been able to find any real information about getting rid off the OV2640 IR lens to be able to record images in low light. I even contacted Arducam but I got no answer. Can you help me?

[@AndreasSpiess]

Google found this article: marksbench.com/electronics/removing-ir-filter-from-esp32-cam/ . It seems that the OV2640 is not different to other webcams.

[@largerification]

Do you know how to overlay sensors data on the video? For example externally connected sensors for humidity, temperature, pulse counter (windspeed), etc... ?

[@AndreasSpiess]

No, I do not know that.

[@middelbh]

Dear Andreas, first of all thanks for this overview! I have two remarks, one: I made ths ESP32-cam using an 0.96” oled display and one external button, making time lapse recordings. The images are stored on the SD card. I use the available GPIO pins with some tricks as they are in use for the camera and the SD reader. For example the TXD and RXD pins can be used as GPIO pins, and IO0 can be used as an input as soon as the sketch is loaded, I use it with a button and the touch command in my sketch. On the display you can select wether or not connect to WiFi (I did not yet add functionality to that as I do not have experience with building websites, but maybe somebody can help with that?). Then the user can select the interval for the timelapse on the display, and start te recording. As I am on a short holiday now I cannot give you the sketch, but I will do so ASAP. The second point, I hoped you would give some more info on the little (round PCB) MEMS I2S microphone, how to connect and how to record. Do you have this microphone running on an ESP32? I would be very, very grateful if you have some more info on that! Regards, Hans

[@randolfllige9142]

it has been two weeks trying to load a program on my esp32cam followed all the youtube instructions but never seemed to get it past loading :( tried with a pins, tried with UNO but so far failed...

[@binxu2674]

@@randolfllige9142 Did you press the rst pin before you plug in power?

[@randolfllige9142]

@@binxu2674 No. Thank you very much! so far i was able to load via development board. Was not able to test the streaming due to office filters. Will try reloading again from outside the office.

[@binxu2674]

@@randolfllige9142 good to hear. I am also a arduino starter. Cheers.

[@garyseaman6105]

Great video. Thank you. Id like to sort out a device to recognise people coming in through front door.

[@AndreasSpiess]

You are welcome!

[@cabe_bedlam]

Its always a good day when we get cats!

[@sichel94sam]

Cooles Video! Danke :)

[@AndreasSpiess]

Bitte, gern geschehen

[@snitkjaer]

I would like to use the camera for meter reading with some sort of ocr

[@sasajovanic6963]

This something that I'm currently working on. Take the picture of the power or gas meter every 28th day in the month and send it to my e-mail

[@APsupportsTerrorism]

Been playing with ESP32s in upython this semester... and thinking about making a security cam. Would the SDs be able to handle? You mention doing image processing (let's say face recog) on a Pi... is there any reason to not just use a Raspi cam directly?

[@AndreasSpiess]

You might want to have a small case. Or more than one camera...

[@supremeleader8796]

I have came across use cases of tinyml with sound and image recognition on arduino boards. One very useful project is to use these boards for utility meter readings. Esp32 boards are capable of character recognition, more especially so when only numerical characters are involved

[@AndreasSpiess]

I saw these meter reading applications, too. But we already have a smart meter. So I could not test it :-(

[@cbm80amiga]

1.3" ST7789 in TTGO Black is not an OLED - it is LCD IPS used commonly in cheap BT watches :)

[@rursus8354]

A suitable project wqould be to put it in any focus of a telescope, for example a follower, mounting the cam behind lenses from a scrapped binocular, making it send signals for a motor driven mount to follow a certain star.

[@AndreasSpiess]

Interesting application!

[@remy44444]

@Andreas Spiess, The price of the esp-cam is 4$, add some cooling, USB adapter you pretty much get an ultra-cheap surveillance camera ( supported by Home assistance with that default sketch! ). Add some sensors ( disable SD card/flash led), use EspHome and you get the ultimate ' magic box ' for your smart home.

[@AndreasSpiess]

Good idea!

[@andyellem]

Super helpful, but you got the like for the little finger pointer :P

[@AndreasSpiess]

It seems to have more fans than myself ;-)

Is there any camera module for this which can be made night vision capable? Afaik it's a matter of removing the IR filter but these OV2640 lenses seems to be sealed.

[@AndreasSpiess]

I do not know IR cameras for ESP32, only for Raspberry Pi

[@selecta6947]

hi @andreas spiess, which camera would you recommend for a facial recognition, must also have the best low light performance Thanks Siz

[@AndreasSpiess]

I am no specialist in video applications.

[@weithiamneo1442]

There is a KZbin channel by Kevin Darrah whereby he used ESP8266 to capture image and then forward to online productivity tool Slack. The image is only capture when a IO signal is triggered and a alert is also send to user. It can be used for home security. This modules would fit that use nicely.

[@davidbradley3074]

You need to get a show on PBS!

[@AndreasSpiess]

You are so kind!

[@nillchen]

I'd like to add item #7 to the summary: * fluffy cat is fluffy Vielen Dank für deine informativen Videos, habe soeben abonniert. LG aus Graz

[@AndreasSpiess]

Willkommen auf dem Kanal!

[@maxmatt2663]

Firstly, you are a great man. Thanks for the detailed videos. But I couldn't understand one thing. Which one is better for face recognition project to use. I want to open door with face recognition and send details over wifi connection to some other esp8266 boards. Which one you or anyone recommends. And is there anyone who used one of these products in such purpose for long term? Thanks one again.

[@AndreasSpiess]

I never tried such a project, so I do not know :-(

[@Konradulations]

I have a fishtank with abut 40+ Golsfish in an aquaponics setup. I am interested in installing a live feed camera and maybe add some pattern recognition to differentiate between fish (recognise individuals). I need to sort out the hardware first.

[@AndreasSpiess]

Nice project!

[@chralber2000]

Great, however i mis something. How is the sensitivity of the cameras, reason i like to capture the stars. In my all sky Camera project which can timelapse over the night and save the timelapse on a webpage. Any idea which board is best

[@AndreasSpiess]

I cannot imagine the this small camera is very sensitive.

[@haajee1]

I have installed a ESP32-cam with removed IR filter and a few IR LEDS in a bird house! It works very well. The only thing is that i never saw a bird inside... :\ I also know that it need a lot of power otherwise you get the brownout message. So you must powered it on the VCC pin with 5V.

[@miketony2069]

How and where did you get cameras with the IR filter removed

[@fenderrexfender]

7:53 I have that board working with a fisheye lens camera powered off a wall charger

[@AndreasSpiess]

:-)

[@eugy2008]

I think the TTGO White board would be best for my project. Andreas, did you get the camera on it working? It looks like the pin-out is different for the version with and without the microphone. Maybe that's the problem in your code? Were you able to use the PIR sensor on this board? General question, has anyone tried connecting any of these cameras (or any other lower priced) to a cellular MCU board to have pictures send over the email or uploaded to a server? If so, could you share your set-up and code?

[@AndreasSpiess]

I never used it again. But you should find projects on google.

[@ahaveland]

I really hope they'll be able to solve and eliminate rolling shutter artifacts - it's terrible for image stabilization, object tracking and image recognition.

[@semmu93]

Also I would love to see some stability tests, since the ESP-CAMs I have seem to be really unreliable. But it could be because of the weak power source I use, didn't test it with any other yet.

[@AndreasSpiess]

ESP32s do not like unstable power supply because of the bursts produced by Wi-Fi.

[@ddean3732]

Great videos Andreas! I was wondering if you would be able to publish the current used while the camera was on, with the flash on and without the camera active. I don't have a current measure and you seem to be able to measure pretty accurately. Thanks.

[@AndreasSpiess]

I do not remember, this is an old video. I assume it is in the range of the normal ESP32 (around 100 mA)

[@ddean3732]

@@AndreasSpiess it seems like it's drawing more than that as it flakes out on my YwRobot power supply. It powers fine when plugged into the laptop usb. Just wondering... Thanks

[@World_Theory]

I like the idea of using a camera as a user input device… There are many ways it can be done, using just that as your premise. One way I've considered, is using an object with a QR Code printed on it, which the camera can track. You can even use multiple QR Codes with unique IDs encoded in them. …Three things to consider, though, are the latency of the camera and video processing steps, the FPS, and the pixel count (or resolution). Latency will lead to an experience that feels slow and unresponsive. Low frame rate will lead to motion tracking errors with fast movements. A low number of pixels will mean less detail, so you'll need to compensate with larger QR Code labels. Anyone is free to use these ideas, by the way! I kinda hope that someone does something with it.

[@kuro68000]

How is the power consumption on these?

[@pacovictoria5091]

Hi Andreas, can you make a video to explain how can I access directly (without external services) to the ESP32 CAM from anywhere in the world by internet?

[@AndreasSpiess]

You need a VPN for that. There are many videos about that topic available.