Search found 33 matches

by alanesq
Thu Nov 26, 2020 3:00 pm
Forum: General Discussion
Topic: doorbell esp32 cam and windows
Replies: 2
Views: 144

Re: doorbell esp32 cam and windows

I just had a quick search on the internet to see if it might be possible to use Processing to act as a web server - I thought it unlikely but turns out it is really easy to do :-) see: https://processing.org/discourse/beta/num_1231628867.html So you could modify the above Processing sketch to run on...
by alanesq
Wed Nov 25, 2020 10:25 am
Forum: ESP-IDF
Topic: ESP32-CAM image difference
Replies: 1
Views: 108

Re: ESP32-CAM image difference

Hi,

It sounds like your captured images may be jpg rather than greyscale if the sizes change?

This may be of use/interest as it shows how to grab and compare greyscale images
https://eloquentarduino.github.io/2020/ ... o-version/
by alanesq
Thu Nov 19, 2020 11:45 am
Forum: ESP32 Arduino
Topic: Wifi problems (can connect, but it is unreliable)
Replies: 10
Views: 449

Re: Wifi problems (can connect, but it is unreliable)

I would check the power to the esp32cam is good, maybe try it on another power supply with short, thick wires (ideally with a smoothing capacitor) as I have experienced no end of problems like this only to discover it is just a power problem. BTW - I use FTP on an esp32cam module in this sketch http...
by alanesq
Thu Nov 19, 2020 11:04 am
Forum: Hardware
Topic: what would cause repeated RTC watch dog reset? (RTCWDT_RTC_RESET)
Replies: 4
Views: 1434

Re: what would cause repeated RTC watch dog reset? (RTCWDT_RTC_RESET)

I seem to remember having an esp32 a good while back which was giving an error something like this, I discovered that if I changed "flash frequency" to 40mhz and it then worked - worth a try. Any kind of problem like this I find the first thing to check is the power supply as if it has a problem wit...
by alanesq
Wed Nov 18, 2020 9:52 am
Forum: General Discussion
Topic: Interrupt
Replies: 4
Views: 270

Re: Interrupt_ESP-IDF

paras99 wrote:
Wed Nov 18, 2020 5:08 am
Thanks Buddy..But I need the solution for Esp-IDF
Sorry, I have never used Esp-IDF and didn't realise it was that different :-(
this looks like it may be what you are looking for? https://www.lucadentella.it/en/2017/02/ ... nterrupts/
by alanesq
Tue Nov 17, 2020 12:26 pm
Forum: General Discussion
Topic: Interrupt
Replies: 4
Views: 270

Re: Interrupt

As it happens I have been writing a sketch this morning which does just that :-)

attachInterrupt(digitalPinToInterrupt(<pin>), <procedure>, CHANGE);
by alanesq
Mon Nov 16, 2020 11:28 am
Forum: Hardware
Topic: ESP32 crashing after few hours
Replies: 3
Views: 211

Re: ESP32 crashing after few hours

Hi,
It is always worth checking you have a good solid power feed to it (maybe try it on a different one),
as I find if there is anything wrong with the power you can waste a lot of time chasing all sorts of odd errors/behaviour
by alanesq
Sat Nov 14, 2020 4:28 pm
Forum: Sample Code
Topic: Using ESP32Cam
Replies: 2
Views: 1321

Re: Using ESP32Cam

I have now modified the sketch to include support for three gpio pins rather than just two. I just discovered that pin 16 can be used as input. I had not been able to get it to work when I experimented with it but it turns out it as it has a 10k pullup resistor on it for some reason so will always o...
by alanesq
Fri Nov 13, 2020 10:08 am
Forum: ESP32 Arduino
Topic: ESP32 CAM direct access to image data
Replies: 25
Views: 17328

Re: ESP32 CAM direct access to image data

Hello everyBody and more thanks for alanesq Thanks :-) As it happens I have just finished re-writing my code this morning to use "client = server.client(); " so your suggestion of "client.write(rgb, ARRAY_LENGTH);" will be very easy to include and I will add this information to my sketch It would h...
by alanesq
Thu Nov 12, 2020 12:14 pm
Forum: ESP32 Arduino
Topic: ESP32 CAM direct access to image data
Replies: 25
Views: 17328

Re: ESP32 CAM direct access to image data

thank you very much, your post was of great help, thanks to him I now have a good course to follow. :D :D Glad it helped :-) BTW-I have been experimenting some more and can confirm that it works as I modified my sketch to send the RGB data over the serial port which I then collected and fed in to P...

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